{"product_id":"tpa3116-subwoofer-amplifier-board-tpa3116d2-audio-amplifiers-100w-bass-output-dc12-24v-new","title":"TPA3116 Subwoofer Amplifier Board TPA3116D2 Audio Amplifiers 100W Bass Output DC12-24V NEW","description":"\u003ch1\u003eSPECIFICATIONS\u003c\/h1\u003e\u003cp\u003e\u003cspan\u003eBrand Name\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eNONE\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eChoice\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eyes\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eCompatible Devices Brand\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eOther\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eFunction\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eOther\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eItem Type\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eMP3 Players Accessories Kits\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eOrigin\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eMainland China\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003esemi_Choice\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eyes\u003c\/span\u003e\u003c\/p\u003e\u003cdiv class=\"detailmodule_html\"\u003e\u003cdiv class=\"detail-desc-decorate-richtext\"\u003e\n\u003cdiv style='margin: 0px; color: rgb(0, 0, 0); overflow-wrap: break-word; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; box-sizing: content-box; -webkit-tap-highlight-color: transparent; outline: 0px; padding: 0px; font-family: \"Open Sans\", Roboto, Arial, Helvetica, sans-serif, SimSun; font-size: 14px; background-color: rgb(255, 255, 255);'\u003e\n\u003cp style=\"margin: 0px; color: rgb(51, 51, 51); overflow-wrap: break-word; box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; font-size: 14px; line-height: inherit; font-weight: 400; padding: 0px;\"\u003e\u003cstrong style=\"font-weight: 700 !important; box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px;\"\u003e\u003cspan style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px; max-width: 100%; word-break: break-word; font-size: 16px;\"\u003e\u003cspan style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px; max-width: 100%; word-break: break-word; font-family: arial, helvetica, sans-serif;\"\u003e\u003cspan style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px; max-width: 100%; word-break: break-word; background-color: rgb(0, 176, 240);\"\u003eProduct description:\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv style='margin: 0px; color: rgb(0, 0, 0); overflow-wrap: break-word; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; box-sizing: content-box; -webkit-tap-highlight-color: transparent; outline: 0px; padding: 0px; font-family: \"Open Sans\", Roboto, Arial, Helvetica, sans-serif, SimSun; font-size: 14px; background-color: rgb(255, 255, 255);'\u003e\n\u003cp style=\"margin: 0px; color: rgb(51, 51, 51); overflow-wrap: break-word; box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; font-size: 14px; line-height: inherit; font-weight: 400; padding: 0px;\"\u003e\u003cspan style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px; max-width: 100%; word-break: break-word; font-size: 16px; font-family: arial, helvetica, sans-serif;\"\u003e1. This is a bass power amplifier board with preamplifier, bass crossover, and bass volume potentiometer control. It is for the pros who already have 2.0 amplifiers, and the DIY combination is used for 2.1 amplifiers.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv style='margin: 0px; color: rgb(0, 0, 0); overflow-wrap: break-word; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; box-sizing: content-box; -webkit-tap-highlight-color: transparent; outline: 0px; padding: 0px; font-family: \"Open Sans\", Roboto, Arial, Helvetica, sans-serif, SimSun; font-size: 14px; background-color: rgb(255, 255, 255);'\u003e\n\u003cp style=\"margin: 0px; color: rgb(51, 51, 51); overflow-wrap: break-word; box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; font-size: 14px; line-height: inherit; font-weight: 400; padding: 0px;\"\u003e\u003cspan style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px; max-width: 100%; word-break: break-word; font-size: 16px; font-family: arial, helvetica, sans-serif;\"\u003e2. It is based on TI's\u003c\/span\u003e\u003cspan style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px; max-width: 100%; word-break: break-word; font-size: 16px; font-family: arial, helvetica, sans-serif;\"\u003e\u003cstrong style=\"font-weight: 700 !important; box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px;\"\u003e\u003cspan\u003e \u003c\/span\u003eTPA3116D2\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003cspan style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px; max-width: 100%; word-break: break-word; font-size: 16px; font-family: arial, helvetica, sans-serif;\"\u003ehigh performance digital power amplifier chip.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv style='margin: 0px; color: rgb(0, 0, 0); overflow-wrap: break-word; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; box-sizing: content-box; -webkit-tap-highlight-color: transparent; outline: 0px; padding: 0px; font-family: \"Open Sans\", Roboto, Arial, Helvetica, sans-serif, SimSun; font-size: 14px; background-color: rgb(255, 255, 255);'\u003e\n\u003cp style=\"margin: 0px; color: rgb(51, 51, 51); overflow-wrap: break-word; box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; font-size: 14px; line-height: inherit; font-weight: 400; padding: 0px;\"\u003e\u003cspan style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px; max-width: 100%; word-break: break-word; font-size: 16px; font-family: arial, helvetica, sans-serif;\"\u003e3. Use DC power supply\u003cspan\u003e \u003c\/span\u003e\u003c\/span\u003e\u003cspan style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px; max-width: 100%; word-break: break-word; font-size: 16px; font-family: arial, helvetica, sans-serif;\"\u003e\u003cstrong style=\"font-weight: 700 !important; box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px;\"\u003e12-24V\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003cspan style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px; max-width: 100%; word-break: break-word; font-size: 16px; font-family: arial, helvetica, sans-serif;\"\u003epower supply, wide working voltage, power-saving design, efficiency up to 90%. Supports up to 100W (Bass) bass channel output.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv style='margin: 0px; color: rgb(0, 0, 0); overflow-wrap: break-word; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; box-sizing: content-box; -webkit-tap-highlight-color: transparent; outline: 0px; padding: 0px; font-family: \"Open Sans\", Roboto, Arial, Helvetica, sans-serif, SimSun; font-size: 14px; background-color: rgb(255, 255, 255);'\u003e\n\u003cp style=\"margin: 0px; color: rgb(51, 51, 51); overflow-wrap: break-word; box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; font-size: 14px; line-height: inherit; font-weight: 400; padding: 0px;\"\u003e\u003cspan style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px; max-width: 100%; word-break: break-word; font-size: 16px; font-family: arial, helvetica, sans-serif;\"\u003e4. You can use a good performance switching power adapter, notebook switching power supply, or rectified and filtered transformer power supply, you can also use a rechargeable source, or car power supply, etc...\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv style='margin: 0px; color: rgb(0, 0, 0); overflow-wrap: break-word; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; box-sizing: content-box; -webkit-tap-highlight-color: transparent; outline: 0px; padding: 0px; font-family: \"Open Sans\", Roboto, Arial, Helvetica, sans-serif, SimSun; font-size: 14px; background-color: rgb(255, 255, 255);'\u003e\n\u003cp style=\"margin: 0px; color: rgb(51, 51, 51); overflow-wrap: break-word; box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; font-size: 14px; line-height: inherit; font-weight: 400; padding: 0px;\"\u003e\u003cspan style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px; max-width: 100%; word-break: break-word; font-size: 16px; font-family: arial, helvetica, sans-serif;\"\u003e5. Boot anti-shock protection design, there is no POP popping at boot, please pay attention to the high requirements.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv style='margin: 0px; color: rgb(0, 0, 0); overflow-wrap: break-word; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; box-sizing: content-box; -webkit-tap-highlight-color: transparent; outline: 0px; padding: 0px; font-family: \"Open Sans\", Roboto, Arial, Helvetica, sans-serif, SimSun; font-size: 14px; background-color: rgb(255, 255, 255);'\u003e\u003cspan style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px; max-width: 100%; word-break: break-word; font-size: 16px; font-family: arial, helvetica, sans-serif;\"\u003e6. The board is a finished board that has been soldered and tested. Connect the speaker according to the picture, and input it with audio input and power.\u003c\/span\u003e\u003c\/div\u003e\n\n\u003cdiv style='margin: 0px; color: rgb(0, 0, 0); overflow-wrap: break-word; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; box-sizing: content-box; -webkit-tap-highlight-color: transparent; outline: 0px; padding: 0px; font-family: \"Open Sans\", Roboto, Arial, Helvetica, sans-serif, SimSun; font-size: 14px; background-color: rgb(255, 255, 255);'\u003e \u003c\/div\u003e\n\n\u003cdiv style='margin: 0px; color: rgb(0, 0, 0); overflow-wrap: break-word; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; box-sizing: content-box; -webkit-tap-highlight-color: transparent; outline: 0px; padding: 0px; font-family: \"Open Sans\", Roboto, Arial, Helvetica, sans-serif, SimSun; font-size: 14px; background-color: rgb(255, 255, 255);'\u003e\n\u003cdiv style=\"margin: 0px; color: rgb(51, 51, 51); overflow-wrap: break-word; box-sizing: content-box; -webkit-tap-highlight-color: transparent; outline: 0px; padding: 0px;\"\u003e\n\u003cdiv style=\"margin: 0px; color: rgb(51, 51, 51); overflow-wrap: break-word; box-sizing: content-box; -webkit-tap-highlight-color: transparent; outline: 0px; padding: 0px;\"\u003e \u003c\/div\u003e\n\n\u003cdiv style=\"margin: 0px; color: rgb(51, 51, 51); overflow-wrap: break-word; box-sizing: content-box; -webkit-tap-highlight-color: transparent; outline: 0px; padding: 0px;\"\u003e\n\u003cdiv style=\"margin: 0px; color: rgb(51, 51, 51); overflow-wrap: break-word; box-sizing: content-box; -webkit-tap-highlight-color: transparent; outline: 0px; padding: 0px;\"\u003e\u003cstrong style=\"font-weight: 700 !important; box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px;\"\u003e\u003cspan style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px; max-width: 100%; word-break: break-word; font-size: 16px;\"\u003e\u003cspan style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px; max-width: 100%; word-break: break-word; font-family: arial, helvetica, sans-serif;\"\u003e\u003cspan style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px; max-width: 100%; word-break: break-word; background-color: rgb(255, 255, 0);\"\u003eTechnical Parameters: \u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\n\u003cdiv style=\"margin: 0px; color: rgb(51, 51, 51); overflow-wrap: break-word; box-sizing: content-box; -webkit-tap-highlight-color: transparent; outline: 0px; padding: 0px;\"\u003e\n\u003cul style=\"list-style: disc; margin: 0px; padding: 0px; line-height: 1.6; box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin-block: 1em; margin-inline: 0px; padding-inline-start: 40px;\"\u003e\n\u003cli style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px;\"\u003e\n\u003cp style=\"margin: 0px; color: rgb(51, 51, 51); overflow-wrap: break-word; box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; font-size: 14px; line-height: inherit; font-weight: 400; padding: 0px;\"\u003e\u003cspan style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px; max-width: 100%; word-break: break-word; font-size: 16px;\"\u003e\u003cspan style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px; max-width: 100%; word-break: break-word; font-family: arial, helvetica, sans-serif;\"\u003eBoard Size: 55 X 83 X 29mm (excluding the protrusion of the potentiometer 15mm)\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\n\u003cul style=\"list-style: disc; margin: 0px; padding: 0px; line-height: 1.6; box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin-block: 1em; margin-inline: 0px; padding-inline-start: 40px;\"\u003e\n\u003cli style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px;\"\u003e\n\u003cp style=\"margin: 0px; color: rgb(51, 51, 51); overflow-wrap: break-word; box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; font-size: 14px; line-height: inherit; font-weight: 400; padding: 0px;\"\u003e\u003cspan style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px; max-width: 100%; word-break: break-word; font-size: 16px;\"\u003e\u003cspan style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px; max-width: 100%; word-break: break-word; font-family: arial, helvetica, sans-serif;\"\u003e\u003cspan style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px; max-width: 100%; word-break: break-word; color: rgb(255, 0, 0);\"\u003e\u003cstrong style=\"font-weight: 700 !important; box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px;\"\u003eOperating voltage range: DC9-25V (current 2-3A or more, if the power is larger, it is recommended to be 19-24V4A or more\u003c\/strong\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cspan style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px; max-width: 100%; word-break: break-word; font-size: 16px;\"\u003e\u003cspan style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px; max-width: 100%; word-break: break-word; font-family: arial, helvetica, sans-serif;\"\u003e)\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px;\"\u003e \u003c\/li\u003e\n\u003cli style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px;\"\u003e\n\u003cp style=\"margin: 0px; color: rgb(51, 51, 51); overflow-wrap: break-word; box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; font-size: 14px; line-height: inherit; font-weight: 400; padding: 0px;\"\u003e\u003cspan style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px; max-width: 100%; word-break: break-word; font-size: 16px;\"\u003e\u003cspan style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px; max-width: 100%; word-break: break-word; font-family: arial, helvetica, sans-serif;\"\u003eFrequency response range: Input: 20Hz-20KHz\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px;\"\u003e \u003c\/li\u003e\n\u003cli style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px;\"\u003e\n\u003cp style=\"margin: 0px; color: rgb(51, 51, 51); overflow-wrap: break-word; box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; font-size: 14px; line-height: inherit; font-weight: 400; padding: 0px;\"\u003e\u003cspan style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px; max-width: 100%; word-break: break-word; font-size: 16px;\"\u003e\u003cspan style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px; max-width: 100%; word-break: break-word; font-family: arial, helvetica, sans-serif;\"\u003eOutput: 20Hz-180Hz\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px;\"\u003e \u003c\/li\u003e\n\u003cli style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px;\"\u003e\n\u003cp style=\"margin: 0px; color: rgb(51, 51, 51); overflow-wrap: break-word; box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; font-size: 14px; line-height: inherit; font-weight: 400; padding: 0px;\"\u003e\u003cspan style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px; max-width: 100%; word-break: break-word; font-size: 16px;\"\u003e\u003cspan style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px; max-width: 100%; word-break: break-word; font-family: arial, helvetica, sans-serif;\"\u003eAudio input sensitivity: 500mV\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px;\"\u003e \u003c\/li\u003e\n\u003cli style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px;\"\u003e\n\u003cp style=\"margin: 0px; color: rgb(51, 51, 51); overflow-wrap: break-word; box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; font-size: 14px; line-height: inherit; font-weight: 400; padding: 0px;\"\u003e\u003cspan style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px; max-width: 100%; word-break: break-word; font-size: 16px;\"\u003e\u003cspan style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px; max-width: 100%; word-break: break-word; font-family: arial, helvetica, sans-serif;\"\u003eSubwoofer impedance: 2-8 ohm\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cdiv style=\"margin: 0px; color: rgb(51, 51, 51); overflow-wrap: break-word; box-sizing: content-box; -webkit-tap-highlight-color: transparent; outline: 0px; padding: 0px;\"\u003e \u003c\/div\u003e\n\n\u003cdiv style=\"margin: 0px; color: rgb(51, 51, 51); overflow-wrap: break-word; box-sizing: content-box; -webkit-tap-highlight-color: transparent; outline: 0px; padding: 0px;\"\u003e\u003cspan style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px; max-width: 100%; word-break: break-word; color: rgb(255, 0, 0);\"\u003e\u003cstrong style=\"font-weight: 700 !important; box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px;\"\u003e\u003cspan style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px; max-width: 100%; word-break: break-word; font-size: 16px;\"\u003e\u003cspan style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px; max-width: 100%; word-break: break-word; font-family: arial, helvetica, sans-serif;\"\u003e  Note:\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/div\u003e\n\n\u003cdiv style=\"margin: 0px; color: rgb(51, 51, 51); overflow-wrap: break-word; box-sizing: content-box; -webkit-tap-highlight-color: transparent; outline: 0px; padding: 0px;\"\u003e\u003cspan style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px; max-width: 100%; word-break: break-word; color: rgb(255, 0, 0);\"\u003e\u003cspan style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px; max-width: 100%; word-break: break-word; font-size: 16px;\"\u003e\u003cspan style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px; max-width: 100%; word-break: break-word; font-family: arial, helvetica, sans-serif;\"\u003e   1. Output power and power supply voltage, speaker impedance, and audio source input size. Usually the power supply voltage is higher and the supported output power will be larger.\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\n\u003cdiv style=\"margin: 0px; color: rgb(51, 51, 51); overflow-wrap: break-word; box-sizing: content-box; -webkit-tap-highlight-color: transparent; outline: 0px; padding: 0px;\"\u003e \u003c\/div\u003e\n\n\u003cdiv style=\"margin: 0px; color: rgb(51, 51, 51); overflow-wrap: break-word; box-sizing: content-box; -webkit-tap-highlight-color: transparent; outline: 0px; padding: 0px;\"\u003e\u003cspan style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px; max-width: 100%; word-break: break-word; color: rgb(255, 0, 0);\"\u003e\u003cspan style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px; max-width: 100%; word-break: break-word; font-size: 16px;\"\u003e\u003cspan style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px; max-width: 100%; word-break: break-word; font-family: arial, helvetica, sans-serif;\"\u003e     2. Speakers with different impedances can support different output powers. Usually, the power of the speakers is smaller and easier to achieve.\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\n\u003cdiv style=\"margin: 0px; color: rgb(51, 51, 51); overflow-wrap: break-word; box-sizing: content-box; -webkit-tap-highlight-color: transparent; outline: 0px; padding: 0px;\"\u003e \u003c\/div\u003e\n\n\u003cdiv style=\"margin: 0px; color: rgb(51, 51, 51); overflow-wrap: break-word; box-sizing: content-box; -webkit-tap-highlight-color: transparent; outline: 0px; padding: 0px;\"\u003e\n\u003cdiv style=\"margin: 0px; color: rgb(51, 51, 51); overflow-wrap: break-word; box-sizing: content-box; -webkit-tap-highlight-color: transparent; outline: 0px; padding: 0px;\"\u003e\u003cstrong style=\"font-weight: 700 !important; box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px;\"\u003e\u003cspan style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px; max-width: 100%; word-break: break-word; font-size: 16px;\"\u003e\u003cspan style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px; max-width: 100%; word-break: break-word; font-family: arial, helvetica, sans-serif;\"\u003e\u003cspan style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px; max-width: 100%; word-break: break-word; background-color: rgb(255, 255, 0);\"\u003eWiring method (important):\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\n\u003cdiv style=\"margin: 0px; color: rgb(51, 51, 51); overflow-wrap: break-word; box-sizing: content-box; -webkit-tap-highlight-color: transparent; outline: 0px; padding: 0px;\"\u003e \u003c\/div\u003e\n\n\u003cdiv style=\"margin: 0px; color: rgb(51, 51, 51); overflow-wrap: break-word; box-sizing: content-box; -webkit-tap-highlight-color: transparent; outline: 0px; padding: 0px;\"\u003e\u003cspan style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px; max-width: 100%; word-break: break-word; font-size: 16px;\"\u003e\u003cspan style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px; max-width: 100%; word-break: break-word; font-family: arial, helvetica, sans-serif;\"\u003e Instructions for checking the web page before use \u0026gt;\u0026gt; 2. Connect the speaker cable \u0026gt;\u0026gt; 3. Connect the audio input cable \u0026gt;\u0026gt; 4. Confirm the wiring is correct, and finally plug in the power! To change the wiring or move the board, you must remove the power before operating. Incorrect use, short circuit between solder joints, or short-circuit between parts can cause chip damage.\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\n\u003cdiv style=\"margin: 0px; color: rgb(51, 51, 51); overflow-wrap: break-word; box-sizing: content-box; -webkit-tap-highlight-color: transparent; outline: 0px; padding: 0px;\"\u003e \u003c\/div\u003e\n\n\u003cdiv style=\"margin: 0px; color: rgb(51, 51, 51); overflow-wrap: break-word; box-sizing: content-box; -webkit-tap-highlight-color: transparent; outline: 0px; padding: 0px;\"\u003e\n\u003cp style=\"margin: 0px; color: rgb(51, 51, 51); overflow-wrap: break-word; box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; font-size: 14px; line-height: inherit; font-weight: 400; padding: 0px;\"\u003e\u003cspan style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px; max-width: 100%; word-break: break-word; color: rgb(255, 0, 0);\"\u003e\u003cstrong style=\"font-weight: 700 !important; box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px;\"\u003e\u003cspan style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px; max-width: 100%; word-break: break-word; font-size: 16px;\"\u003e\u003cspan style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px; max-width: 100%; word-break: break-word; font-family: arial, helvetica, sans-serif;\"\u003ePrecautions for use (important):\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n \n\n\u003cdiv style=\"margin: 0px; color: rgb(51, 51, 51); overflow-wrap: break-word; box-sizing: content-box; -webkit-tap-highlight-color: transparent; outline: 0px; padding: 0px;\"\u003e\u003cstrong style=\"font-weight: 700 !important; box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px;\"\u003e\u003cspan style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px; max-width: 100%; word-break: break-word; font-size: 16px;\"\u003e\u003cspan style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px; max-width: 100%; word-break: break-word; font-family: arial, helvetica, sans-serif;\"\u003e\u003cspan style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px; max-width: 100%; word-break: break-word; background-color: rgb(255, 255, 0);\"\u003eAbout power supply selection:\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\n\u003cdiv style=\"margin: 0px; color: rgb(51, 51, 51); overflow-wrap: break-word; box-sizing: content-box; -webkit-tap-highlight-color: transparent; outline: 0px; padding: 0px;\"\u003e \u003c\/div\u003e\n\n\u003cdiv style=\"margin: 0px; color: rgb(51, 51, 51); overflow-wrap: break-word; box-sizing: content-box; -webkit-tap-highlight-color: transparent; outline: 0px; padding: 0px;\"\u003e\u003cspan style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px; max-width: 100%; word-break: break-word; font-size: 16px;\"\u003e\u003cspan style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px; max-width: 100%; word-break: break-word; font-family: arial, helvetica, sans-serif;\"\u003e1. The board is powered by DC power supply, with positive and negative reverse connection protection, positive and negative connection and no power.\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\n\u003cdiv style=\"margin: 0px; color: rgb(51, 51, 51); overflow-wrap: break-word; box-sizing: content-box; -webkit-tap-highlight-color: transparent; outline: 0px; padding: 0px;\"\u003e \u003c\/div\u003e\n\n\u003cdiv style=\"margin: 0px; color: rgb(51, 51, 51); overflow-wrap: break-word; box-sizing: content-box; -webkit-tap-highlight-color: transparent; outline: 0px; padding: 0px;\"\u003e\u003cspan style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px; max-width: 100%; word-break: break-word; font-size: 16px;\"\u003e\u003cspan style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px; max-width: 100%; word-break: break-word; font-family: arial, helvetica, sans-serif;\"\u003e2. The power supply is not allowed to be connected to the speaker output interface incorrectly, which will cause damage to the power amplifier chip.\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\n\u003cdiv style=\"margin: 0px; color: rgb(51, 51, 51); overflow-wrap: break-word; box-sizing: content-box; -webkit-tap-highlight-color: transparent; outline: 0px; padding: 0px;\"\u003e \u003c\/div\u003e\n\n\u003cdiv style=\"margin: 0px; color: rgb(51, 51, 51); overflow-wrap: break-word; box-sizing: content-box; -webkit-tap-highlight-color: transparent; outline: 0px; padding: 0px;\"\u003e\u003cspan style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px; max-width: 100%; word-break: break-word; font-size: 16px;\"\u003e\u003cspan style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px; max-width: 100%; word-break: break-word; font-family: arial, helvetica, sans-serif;\"\u003e3. The maximum working voltage is 25V (Note: Do not use more than 25V when using).\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\n\u003cdiv style=\"margin: 0px; color: rgb(51, 51, 51); overflow-wrap: break-word; box-sizing: content-box; -webkit-tap-highlight-color: transparent; outline: 0px; padding: 0px;\"\u003e \u003c\/div\u003e\n\n\u003cdiv style=\"margin: 0px; color: rgb(51, 51, 51); overflow-wrap: break-word; box-sizing: content-box; -webkit-tap-highlight-color: transparent; outline: 0px; padding: 0px;\"\u003e\u003cspan style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px; max-width: 100%; word-break: break-word; font-size: 16px;\"\u003e\u003cspan style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px; max-width: 100%; word-break: break-word; font-family: arial, helvetica, sans-serif;\"\u003e4. The board is powered by DC power supply. Please use a good DC power supply. If the power supply performance is poor, there may be hum, or current sound... Especially for switching power supply, please try to use the grounding pin 3 , similar to a laptop 3-pin AC plug. Note: Household AC power strips must be grounded. If they are not grounded, some switching power supplies may have current sounds. !\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\n\u003cdiv style=\"margin: 0px; color: rgb(51, 51, 51); overflow-wrap: break-word; box-sizing: content-box; -webkit-tap-highlight-color: transparent; outline: 0px; padding: 0px;\"\u003e \u003c\/div\u003e\n\n\u003cdiv style=\"margin: 0px; color: rgb(51, 51, 51); overflow-wrap: break-word; box-sizing: content-box; -webkit-tap-highlight-color: transparent; outline: 0px; padding: 0px;\"\u003e\u003cspan style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px; max-width: 100%; word-break: break-word; font-size: 16px;\"\u003e\u003cspan style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px; max-width: 100%; word-break: break-word; font-family: arial, helvetica, sans-serif;\"\u003e5. If you use ordinary AC transformer power supply, you must add rectification and filtering before you can connect and use. (Note: The no-load voltage after rectification should not be greater than 25V).\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\n\u003cdiv style=\"margin: 0px; color: rgb(51, 51, 51); overflow-wrap: break-word; box-sizing: content-box; -webkit-tap-highlight-color: transparent; outline: 0px; padding: 0px;\"\u003e \n\u003cdiv style=\"margin: 0px; color: rgb(51, 51, 51); overflow-wrap: break-word; box-sizing: content-box; -webkit-tap-highlight-color: transparent; outline: 0px; padding: 0px;\"\u003e\u003cstrong style=\"font-weight: 700 !important; box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px;\"\u003e\u003cspan style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px; max-width: 100%; word-break: break-word; font-size: 16px;\"\u003e\u003cspan style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px; max-width: 100%; word-break: break-word; font-family: arial, helvetica, sans-serif;\"\u003e\u003cspan style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px; max-width: 100%; word-break: break-word; background-color: rgb(255, 255, 0);\"\u003ePower supply voltage \/ current and speaker selection:\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\n\u003cdiv style=\"margin: 0px; color: rgb(51, 51, 51); overflow-wrap: break-word; box-sizing: content-box; -webkit-tap-highlight-color: transparent; outline: 0px; padding: 0px;\"\u003e \u003c\/div\u003e\n\n\u003cdiv style=\"margin: 0px; color: rgb(51, 51, 51); overflow-wrap: break-word; box-sizing: content-box; -webkit-tap-highlight-color: transparent; outline: 0px; padding: 0px;\"\u003e\u003cspan style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px; max-width: 100%; word-break: break-word; font-size: 16px;\"\u003e\u003cspan style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px; max-width: 100%; word-break: break-word; font-family: arial, helvetica, sans-serif;\"\u003e1. Power supply 12V\/2-3A or above, woofer with 5-8 inches or more 3-4 ohms\/25-45W;\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\n\u003cdiv style=\"margin: 0px; color: rgb(51, 51, 51); overflow-wrap: break-word; box-sizing: content-box; -webkit-tap-highlight-color: transparent; outline: 0px; padding: 0px;\"\u003e \u003c\/div\u003e\n\n\u003cdiv style=\"margin: 0px; color: rgb(51, 51, 51); overflow-wrap: break-word; box-sizing: content-box; -webkit-tap-highlight-color: transparent; outline: 0px; padding: 0px;\"\u003e\u003cspan style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px; max-width: 100%; word-break: break-word; font-size: 16px;\"\u003e\u003cspan style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px; max-width: 100%; word-break: break-word; font-family: arial, helvetica, sans-serif;\"\u003e2. Power supply 19V\/3-4A or above, woofer with 5-10 inches or more 3-4 ohms \/ 40-80W;\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\n\u003cdiv style=\"margin: 0px; color: rgb(51, 51, 51); overflow-wrap: break-word; box-sizing: content-box; -webkit-tap-highlight-color: transparent; outline: 0px; padding: 0px;\"\u003e \u003c\/div\u003e\n\n\u003cdiv style=\"margin: 0px; color: rgb(51, 51, 51); overflow-wrap: break-word; box-sizing: content-box; -webkit-tap-highlight-color: transparent; outline: 0px; padding: 0px;\"\u003e\u003cspan style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px; max-width: 100%; word-break: break-word; font-size: 16px;\"\u003e\u003cspan style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px; max-width: 100%; word-break: break-word; font-family: arial, helvetica, sans-serif;\"\u003e3. Power supply 22-24V\/4A or above, woofer with 6-10 inches or more 3-4 ohms \/ 80-120W. [Hint: These are only a basic parameter, which is for reference only. The actual effect is related to the speaker's own nature and the coordination of the speaker. For example, the sound power of 8 ohms will be smaller than 4 ohms.\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\n\u003cdiv style=\"margin: 0px; color: rgb(51, 51, 51); overflow-wrap: break-word; box-sizing: content-box; -webkit-tap-highlight-color: transparent; outline: 0px; padding: 0px;\"\u003e \u003c\/div\u003e\n\n\u003cdiv style=\"margin: 0px; color: rgb(51, 51, 51); overflow-wrap: break-word; box-sizing: content-box; -webkit-tap-highlight-color: transparent; outline: 0px; padding: 0px;\"\u003e\u003cspan style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px; max-width: 100%; word-break: break-word; font-size: 16px;\"\u003e\u003cspan style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px; max-width: 100%; word-break: break-word; font-family: arial, helvetica, sans-serif;\"\u003e4. If the power requirements are particularly high, it is recommended that the power supply be 20-24V\/4-5A or more. If the power supply current is not enough, the power supply will be insufficient after the volume is turned on, and the power supply light may change or the sound may not be normal.\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\n\u003cdiv style=\"margin: 0px; color: rgb(51, 51, 51); overflow-wrap: break-word; box-sizing: content-box; -webkit-tap-highlight-color: transparent; outline: 0px; padding: 0px;\"\u003e \u003c\/div\u003e\n\n\u003cdiv style=\"margin: 0px; color: rgb(51, 51, 51); overflow-wrap: break-word; box-sizing: content-box; -webkit-tap-highlight-color: transparent; outline: 0px; padding: 0px;\"\u003e\u003cspan style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px; max-width: 100%; word-break: break-word; font-size: 16px;\"\u003e\u003cspan style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px; max-width: 100%; word-break: break-word; font-family: arial, helvetica, sans-serif;\"\u003e5. Like DIY woofer parallel use, this board bass channel supports low resistance speaker, 2 8 ohms parallel = 4 ohms; 2 6 ohms parallel = 3 ohms. Note: Parallel is the \"+\" of the two speakers connected to \"+\", \"-\" to \"-\" Do not pick up the wrong!\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\n\u003cdiv style=\"margin: 0px; color: rgb(51, 51, 51); overflow-wrap: break-word; box-sizing: content-box; -webkit-tap-highlight-color: transparent; outline: 0px; padding: 0px;\"\u003e \u003c\/div\u003e\n\n\u003cdiv style=\"margin: 0px; color: rgb(51, 51, 51); overflow-wrap: break-word; box-sizing: content-box; -webkit-tap-highlight-color: transparent; outline: 0px; padding: 0px;\"\u003e\n\u003cdiv style=\"margin: 0px; color: rgb(51, 51, 51); overflow-wrap: break-word; box-sizing: content-box; -webkit-tap-highlight-color: transparent; outline: 0px; padding: 0px;\"\u003e\n\u003cp style=\"margin: 0px; color: rgb(51, 51, 51); overflow-wrap: break-word; box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; font-size: 14px; line-height: inherit; font-weight: 400; padding: 0px;\"\u003e\u003cspan style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px; max-width: 100%; word-break: break-word; font-size: 16px;\"\u003e\u003cspan style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px; max-width: 100%; word-break: break-word; font-family: arial, helvetica, sans-serif;\"\u003e\u003cstrong style=\"font-weight: 700 !important; box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px;\"\u003e\u003cspan style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px; max-width: 100%; word-break: break-word; background-color: rgb(255, 255, 0);\"\u003eSpeaker output wiring: \u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"margin: 0px; color: rgb(51, 51, 51); overflow-wrap: break-word; box-sizing: content-box; -webkit-tap-highlight-color: transparent; outline: 0px; padding: 0px;\"\u003e\u003cspan style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px; max-width: 100%; word-break: break-word; font-size: 16px; font-family: arial, helvetica, sans-serif;\"\u003eThe speaker output \"+\" or \"-\" are independent, not common output, and can not be connected to each other. It is also not possible to connect to the power supply \"+\" or \"-\". The error may be abnormal or cause damage to the amplifier chip.\u003c\/span\u003e\u003c\/div\u003e\n\n\u003cdiv style=\"margin: 0px; color: rgb(51, 51, 51); overflow-wrap: break-word; box-sizing: content-box; -webkit-tap-highlight-color: transparent; outline: 0px; padding: 0px;\"\u003e \u003c\/div\u003e\n\n\u003cdiv style=\"margin: 0px; color: rgb(51, 51, 51); overflow-wrap: break-word; box-sizing: content-box; -webkit-tap-highlight-color: transparent; outline: 0px; padding: 0px;\"\u003e\u003cstrong style=\"font-weight: 700 !important; box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px;\"\u003e\u003cspan style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px; max-width: 100%; word-break: break-word; font-size: 16px;\"\u003e\u003cspan style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px; max-width: 100%; word-break: break-word; font-family: arial, helvetica, sans-serif;\"\u003e\u003cspan style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px; max-width: 100%; word-break: break-word; background-color: rgb(255, 255, 0);\"\u003eAbout audio input wiring:\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\n\u003cdiv style=\"margin: 0px; color: rgb(51, 51, 51); overflow-wrap: break-word; box-sizing: content-box; -webkit-tap-highlight-color: transparent; outline: 0px; padding: 0px;\"\u003e \u003c\/div\u003e\n\n\u003cdiv style=\"margin: 0px; color: rgb(51, 51, 51); overflow-wrap: break-word; box-sizing: content-box; -webkit-tap-highlight-color: transparent; outline: 0px; padding: 0px;\"\u003e\u003cspan style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px; max-width: 100%; word-break: break-word; font-size: 16px;\"\u003e\u003cspan style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px; max-width: 100%; word-break: break-word; font-family: arial, helvetica, sans-serif;\"\u003e1. Please use a shielded type of wire connection to reduce the noise and current caused by the input connection.\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\n\u003cdiv style=\"margin: 0px; color: rgb(51, 51, 51); overflow-wrap: break-word; box-sizing: content-box; -webkit-tap-highlight-color: transparent; outline: 0px; padding: 0px;\"\u003e \u003c\/div\u003e\n\n\u003cdiv style=\"margin: 0px; color: rgb(51, 51, 51); overflow-wrap: break-word; box-sizing: content-box; -webkit-tap-highlight-color: transparent; outline: 0px; padding: 0px;\"\u003e\u003cspan style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px; max-width: 100%; word-break: break-word; font-size: 16px;\"\u003e\u003cspan style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px; max-width: 100%; word-break: break-word; font-family: arial, helvetica, sans-serif;\"\u003e2. If there is an open circuit or a short circuit between the wires, it will cause noise or current sound, and the channel has no sound.\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\n\u003cdiv style=\"margin: 0px; color: rgb(51, 51, 51); overflow-wrap: break-word; box-sizing: content-box; -webkit-tap-highlight-color: transparent; outline: 0px; padding: 0px;\"\u003e \u003c\/div\u003e\n\n\u003cdiv style=\"margin: 0px; color: rgb(51, 51, 51); overflow-wrap: break-word; box-sizing: content-box; -webkit-tap-highlight-color: transparent; outline: 0px; padding: 0px;\"\u003e\u003cspan style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px; max-width: 100%; word-break: break-word; font-size: 16px;\"\u003e\u003cspan style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px; max-width: 100%; word-break: break-word; font-family: arial, helvetica, sans-serif;\"\u003e3. Do not place the board directly on the metal surface or on the conductive object, or on the wet object, which may cause short circuit or induced current sound...\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\n\u003cdiv style=\"margin: 0px; color: rgb(51, 51, 51); overflow-wrap: break-word; box-sizing: content-box; -webkit-tap-highlight-color: transparent; outline: 0px; padding: 0px;\"\u003e \u003c\/div\u003e\n\n\u003cdiv style=\"margin: 0px; color: rgb(51, 51, 51); overflow-wrap: break-word; box-sizing: content-box; -webkit-tap-highlight-color: transparent; outline: 0px; padding: 0px;\"\u003e\u003cstrong style=\"font-weight: 700 !important; box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px;\"\u003e\u003cspan style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px; max-width: 100%; word-break: break-word; font-size: 16px;\"\u003e\u003cspan style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px; max-width: 100%; word-break: break-word; font-family: arial, helvetica, sans-serif;\"\u003e\u003cspan style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px; max-width: 100%; word-break: break-word; background-color: rgb(255, 255, 0);\"\u003eAbout the audio source input:\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\n\u003cdiv style=\"margin: 0px; color: rgb(51, 51, 51); overflow-wrap: break-word; box-sizing: content-box; -webkit-tap-highlight-color: transparent; outline: 0px; padding: 0px;\"\u003e \u003c\/div\u003e\n\n\u003cdiv style=\"margin: 0px; color: rgb(51, 51, 51); overflow-wrap: break-word; box-sizing: content-box; -webkit-tap-highlight-color: transparent; outline: 0px; padding: 0px;\"\u003e\u003cspan style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px; max-width: 100%; word-break: break-word; font-size: 16px;\"\u003e\u003cspan style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px; max-width: 100%; word-break: break-word; font-family: arial, helvetica, sans-serif;\"\u003e  The sound quality and the quality of the input source are important. It is recommended to use full frequency input. If you use an ordinary mobile phone for audio input, in addition to the audio voltage output is smaller, the sound quality may be worse, especially the subwoofer, which is because of the characteristics of the phone itself. If the requirements are particularly high, in order to improve the sound quality, it is recommended to connect sound source devices with good sound quality, such as: CD playback, iPhone or computer sound card equipment, etc. Sound source devices with better sound quality are connected.\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\n\u003cdiv style=\"margin: 0px; color: rgb(51, 51, 51); overflow-wrap: break-word; box-sizing: content-box; -webkit-tap-highlight-color: transparent; outline: 0px; padding: 0px;\"\u003e \u003c\/div\u003e\n\n\u003cdiv style=\"margin: 0px; color: rgb(51, 51, 51); overflow-wrap: break-word; box-sizing: content-box; -webkit-tap-highlight-color: transparent; outline: 0px; padding: 0px;\"\u003e\u003cstrong style=\"font-weight: 700 !important; box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px;\"\u003e\u003cspan style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px; max-width: 100%; word-break: break-word; font-size: 16px;\"\u003e\u003cspan style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px; max-width: 100%; word-break: break-word; font-family: arial, helvetica, sans-serif;\"\u003e\u003cspan style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px; max-width: 100%; word-break: break-word; background-color: rgb(255, 255, 0);\"\u003eAbout sound effects:\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\n\u003cdiv style=\"margin: 0px; color: rgb(51, 51, 51); overflow-wrap: break-word; box-sizing: content-box; -webkit-tap-highlight-color: transparent; outline: 0px; padding: 0px;\"\u003e \u003c\/div\u003e\n\n\u003cdiv style=\"margin: 0px; color: rgb(51, 51, 51); overflow-wrap: break-word; box-sizing: content-box; -webkit-tap-highlight-color: transparent; outline: 0px; padding: 0px;\"\u003e\u003cspan style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px; max-width: 100%; word-break: break-word; font-size: 16px;\"\u003e\u003cspan style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px; max-width: 100%; word-break: break-word; font-family: arial, helvetica, sans-serif;\"\u003e1. The sound quality is related to the quality of the input source and also to the performance of the speaker itself. The bass must be supported by a speaker unit. Especially the subwoofer part, such as the woofer and the cabinet with no good bass performance, can't do very good results.\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\n\u003cdiv style=\"margin: 0px; color: rgb(51, 51, 51); overflow-wrap: break-word; box-sizing: content-box; -webkit-tap-highlight-color: transparent; outline: 0px; padding: 0px;\"\u003e \u003c\/div\u003e\n\n\u003cdiv style=\"margin: 0px; color: rgb(51, 51, 51); overflow-wrap: break-word; box-sizing: content-box; -webkit-tap-highlight-color: transparent; outline: 0px; padding: 0px;\"\u003e\u003cspan style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px; max-width: 100%; word-break: break-word; font-size: 16px;\"\u003e\u003cspan style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px; max-width: 100%; word-break: break-word; font-family: arial, helvetica, sans-serif;\"\u003e2. Woofer price is high and low, bass performance is also high or low. If the power of the speaker itself is too small or the bass performance of the speaker itself is poor, it will affect the bass effect. Or after the volume is turned on, the sound may be abnormal. [Note: If the woofer is 4 inches, you want to achieve 6-inch effect; or 6-inch is to achieve 8 inch bass effect, it can't be done unless the bass performance of the speaker is extremely high]\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"margin: 0px; color: rgb(51, 51, 51); overflow-wrap: break-word; box-sizing: content-box; -webkit-tap-highlight-color: transparent; outline: 0px; padding: 0px;\"\u003e \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv style='margin: 0px; color: rgb(0, 0, 0); overflow-wrap: break-word; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; box-sizing: content-box; -webkit-tap-highlight-color: transparent; outline: 0px; padding: 0px; font-family: \"Open Sans\", Roboto, Arial, Helvetica, sans-serif, SimSun; font-size: 14px; background-color: rgb(255, 255, 255);'\u003e \u003c\/div\u003e\n\n\u003cdiv style='margin: 0px; color: rgb(0, 0, 0); overflow-wrap: break-word; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; box-sizing: content-box; -webkit-tap-highlight-color: transparent; outline: 0px; padding: 0px; font-family: \"Open Sans\", Roboto, Arial, Helvetica, sans-serif, SimSun; font-size: 14px; background-color: rgb(255, 255, 255);'\u003e\u003cstrong style=\"font-weight: 700 !important; box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px;\"\u003e\u003cspan style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px; max-width: 100%; word-break: break-word; font-size: 16px;\"\u003e\u003cspan style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px; max-width: 100%; word-break: break-word; font-family: arial, helvetica, sans-serif;\"\u003e\u003cspan style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px; max-width: 100%; word-break: break-word; background-color: rgb(0, 176, 240);\"\u003ePackage included:\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\n\u003cdiv style='margin: 0px; color: rgb(0, 0, 0); overflow-wrap: break-word; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; box-sizing: content-box; -webkit-tap-highlight-color: transparent; outline: 0px; padding: 0px; font-family: \"Open Sans\", Roboto, Arial, Helvetica, sans-serif, SimSun; font-size: 14px; background-color: rgb(255, 255, 255);'\u003e\u003cspan style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px; max-width: 100%; word-break: break-word; font-size: 16px;\"\u003e\u003cspan style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px; max-width: 100%; word-break: break-word; font-family: arial, helvetica, sans-serif;\"\u003e1PC TPA3116 Subwoofer Board + 1PC 3P Cable\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\n\u003cdiv style='margin: 0px; color: rgb(0, 0, 0); overflow-wrap: break-word; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; box-sizing: content-box; -webkit-tap-highlight-color: transparent; outline: 0px; padding: 0px; font-family: \"Open Sans\", Roboto, Arial, Helvetica, sans-serif, SimSun; font-size: 14px; background-color: rgb(255, 255, 255);'\u003e\u003cspan style=\"box-sizing: border-box; -webkit-tap-highlight-color: transparent; outline: 0px; margin: 0px; padding: 0px; max-width: 100%; word-break: break-word; font-size: 16px;\"\u003e\u003cimg referrerpolicy=\"no-referrer\" src=\"https:\/\/ae01.alicdn.com\/kf\/S508715392d6f41c9af4ab70405b2edb1u.jpg?width=600\u0026amp;height=500\u0026amp;hash=1100\" style=\"max-width: 100%; padding: 0px 5px; vertical-align: middle; box-sizing: border-box;\"\u003e\u003cimg referrerpolicy=\"no-referrer\" src=\"https:\/\/ae01.alicdn.com\/kf\/S88311f659533413a9ba3f4ec1cb87db6s.jpg?width=960\u0026amp;height=800\u0026amp;hash=1760\" style=\"max-width: 100%; padding: 0px 5px; vertical-align: middle; box-sizing: border-box;\"\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/div\u003e\r\n","brand":"HHRummurz.com","offers":[{"title":"Default Title","offer_id":43533484851278,"sku":"\u003cnone\u003e","price":40.91,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/9066\/7598\/files\/S29e5c194044c435690deea3a7b1d2aecS.webp?v=1773858087","url":"https:\/\/www.hhrumurz.com\/products\/tpa3116-subwoofer-amplifier-board-tpa3116d2-audio-amplifiers-100w-bass-output-dc12-24v-new","provider":"HHrumurz.com","version":"1.0","type":"link"}