1 Pc 4R 5W Portable Audio Full Range Speaker Driver 3Ohm 5W 53mm Sound Loudspeaker DIY Bluetooth Music Speaker Home Theater

Product Description

Designed for enclosures and portable audio systems, this 53 mm ($2.1\text{''}$) full-range loudspeaker delivers powerful sound while using very little power. It comes in two impedance options—$3\ \Omega$ and $4\ \Omega$—so it works with popular Class-D amplifier boards, like the PAM8403 and TPA3116, which are often used in DIY Bluetooth speaker builds.

The speaker uses a rubber surround that allows the cone to move further, giving you a strong bass response without hitting the mechanical limit. Its lightweight paper-composite diaphragm keeps range vocals clean and captures high-frequency details with precision. With mounting ear tabs, it’s easy to install and replace in damaged units across portable wireless speakers, micro soundbars, and smart home hubs.

Key Features

Balanced full-range acoustic output covers a frequency band from $100\text{Hz}$ to $20\text{kHz}$. I find that balanced, full-range acoustic output reduces the need for extra tweeters or crossovers in mini speaker setups.

High-Excursion Rubber Surround lets the cone move, which gives punchier low-frequency bass notes than stiff foam surrounds. I notice that the high-excursion rubber surround produces a bass response.

Low-Impedance Efficiency ($3\ \Omega / 4\ \Omega$) is made for low‑voltage Class‑D amplifier circuits that run on a $3.7\text{V}$ to $5\text{V}$ battery. I see that low-impedance efficiency maximizes wattage output.

The durable stamped metal basket keeps the voice coil aligned and stops it from bending when you install the speaker. I feel that the Durable Stamped Metal Basket adds durability to the build.

Specification

Advantages

This is the option to replace old or broken speakers in small Bluetooth audio devices that you carry around.

A $3\ \Omega / 4\ \Omega$ impedance allows the speaker to take the power possible from small battery-powered amplifiers that use low voltage like the $\text{PAM8403}$ and similar models.

The rubber edge that moves a lot gives a bass sound that regular cheap plastic speakers don't have.

The design, with four mounting tabs, makes it easier to put the speaker into boxes made of wood, acrylic, or 3D-printed materials.