Fosi Audio MC331 2.0 Channel Bluetooth Stereo DAC Amplifier, Mini Audio Power Amp for Passive Speaker, USB DAC Headphone Amp
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Estimated Delivery:Oct 14 - Oct 18
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Free Shipping & Returns: On all orders over $75
Fosi Audio MC331 2.0 Channel Bluetooth Stereo DAC Amplifier, Mini Audio Power Amp for Passive Speaker, USB DAC Headphone Amp
Product Description
Elevate your desktop or your living room audio system with the Fosi Audio MC331. This is a one-in-one hybrid tube amplifier. It is designed for musicality and powerful dynamics. The Fosi Audio MC331 pairs a vacuum tube preamp stage with a high-output Class-D amplifier module. This combination softens digital transients. It also provides mid-range warmth. The Fosi Audio MC331 offers extended detail. It gives controlled bass response.
The Fosi Audio MC331 has a built-in digital-to-analog converter. This allows the Fosi Audio MC331 to accept resolution digital inputs. The Fosi Audio MC331 uses USB, optical, and coaxial connections. These connections come from computers, TVs, stream boxes, and CD players. The Fosi Audio MC331 also includes Bluetooth 5.0 streaming. This makes it easy to pair with smartphones and tablets.
Key Features
If you want to lift the sound in your home or office, the Fosi Audio MC331 is a unit that mixes a tube preamp with a Class-D amp. This combination gives you an lively experience.
The Fosi Audio MC331 joins a vacuum tube preamp with a Class-D output amplifier. Together they smooth spikes and add deep warm mids, clear highs, and firm steady bass.
The Fosi Audio MC331 has a digital-to-analog converter. This means you can plug in a computer, TV, streaming set-top box, or CD player using USB or coaxial cables. You can play high-quality audio without any issues.
It also uses Bluetooth 5.0 to stream music from a phone or tablet. There is no hassle, only smooth wireless playback.
The front of the Fosi Audio MC331 shows a VU meter and simple bass and treble knobs. These controls let you shape the tone how you like. The look feels retro and stylish. The sound stays clear and precise. It works well with speakers that run on 4 to 8 ohms.
Specification
| Feature | Details |
| Product Type | 2.0 Channel Hybrid Integrated Tube Amplifier & DAC |
| Brand | Fosi Audio |
| Model | MC331 |
| Amplifier Architecture | Vacuum Tube Preamp Stage + Class-D Power Output |
| Input Options | Bluetooth 5.0, USB Digital, Optical, Coaxial, Stereo RCA Analog |
| Speaker Compatibility | Passive Bookshelf / Desktop Speakers ($4\text{–}8\ \Omega$) |
| Output Terminals | Gold-Plated 5-Way Binding Posts |
| Controls | Master Volume Knob, Bass Adjustment, Treble Adjustment, Input Selector |
| Primary Uses | Desktop Hi-Fi Audio, Home Theater Stereo, Computer DAC Amp, TV Sound Upgrade |
Advantages
Warm tube preamp coloration helps reduce listener fatigue during listening sessions.
Multiple digital and analog inputs mean there is no need for DAC boxes or standalone Bluetooth receivers.
High power efficiency enables loud. Clean playback through passive speakers, without adding bulk or causing excessive heat buildup.
The removable tube design lets audio enthusiasts try tube rolling to customize their signatures.
The solid aluminum build quality looks great on high-end racks and fits well in professional desktop workspaces.
1. About Payment
We accept payment via Alipay, Paypal. All major credit cards are accepted through secure payment processor ESCROW.
2. About Shipment
Worldwide shipping (Except some countries and APO/FPO);
The following regions cannot deliver:
Spain: postcodes starting with 51, 52, 35, 38 or 07.
If the consignee address is belong to the above areas, please do not place order, the parcel cannot be delivered. thank you.
If you have not received your shipment within 30-60 days from payment, please contact us. We will track the shipment and get back to you as soon as possible with a reply. Our goal is customer satisfaction!
3. About Return & Refund
If you are not satisfied with the product you received, please contact us first before open a dispute. We will respond and help to solve the problem once we receive your message.
4. About feedback
Our success depends on your satisfaction, so your feedback is very important to us. If you are satisfied with our products and services, please leave us positive feedback. please contact us before leaving any negative or neutral feedback, we will work with you to solver any problems.
5. Our Service
Warranty: We cover 18 Month warranty for all our products since shipment day. (excluding items damaged and/or misused after receipt). WE DO NOT REPAIR OR REPLACE ITEMS WITH AN EXPIRED WARRANTY.
For all your inquiries about our products, we will reply you in detail within 24 hours.
We have well-trained and professional sales & after-sale services persons who can speak English fluently.
We offer dropshipping. please contact us if you are interested in dropshipping.
Shipping cost is based on weight. Just add products to your cart and use the Shipping Calculator to see the shipping price.
We want you to be 100% satisfied with your purchase. Items can be returned or exchanged within 30 days of delivery.
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All the details you love about the original—with a fresh flared block heel and modern square toe. Expertly crafted using soft Nappa leather, this essential style molds and moves with you to keep you comfortably on your feet all day (and night). This boot uses leather sourced from a Leather Working Group-approved trader. The Leather Working Group (LWG) Audit Standards provide transparency and accountability within the leather supply chain—covering energy and water usage.
Do you ship internationally?
All the details you love about the original—with a fresh flared block heel and modern square toe. Expertly crafted using soft Nappa leather, this essential style molds and moves with you to keep you comfortably on your feet all day (and night). This boot uses leather sourced from a Leather Working Group-approved trader. The Leather Working Group (LWG) Audit Standards provide transparency and accountability within the leather supply chain—covering energy and water usage.
What is your return policy?
All the details you love about the original—with a fresh flared block heel and modern square toe. Expertly crafted using soft Nappa leather, this essential style molds and moves with you to keep you comfortably on your feet all day (and night). This boot uses leather sourced from a Leather Working Group-approved trader. The Leather Working Group (LWG) Audit Standards provide transparency and accountability within the leather supply chain—covering energy and water usage.
What are your sizing options?
All the details you love about the original—with a fresh flared block heel and modern square toe. Expertly crafted using soft Nappa leather, this essential style molds and moves with you to keep you comfortably on your feet all day (and night). This boot uses leather sourced from a Leather Working Group-approved trader. The Leather Working Group (LWG) Audit Standards provide transparency and accountability within the leather supply chain—covering energy and water usage.