---
product_id: 639557545
title: "Fosi Audio V3 300W x2 Power TPA3255 Mini Amp 2 Channel Class D Stereo Amplifier for Passive Tower Speakers for Home Theater Desktop Shelf Tower with 48V Power Supply"
brand: "fosi audio"
price: "$289.21"
currency: USD
in_stock: true
reviews_count: 9
category: "Fosi Audio"
url: https://www.desertcart.us/products/639557545-fosi-audio-v3-300w-x2-power-tpa3255-mini-amp-2
store_origin: US
region: United States of America
---

# 600W peak power output Swappable 8-pin op-amps Full-body heatsink cooling Fosi Audio V3 300W x2 Power TPA3255 Mini Amp 2 Channel Class D Stereo Amplifier for Passive Tower Speakers for Home Theater Desktop Shelf Tower with 48V Power Supply

**Brand:** fosi audio
**Price:** $289.21
**Availability:** ✅ In Stock

## Summary

> 🎧 Compact Powerhouse: Elevate your sound, cool and customizable — don’t get left behind!

## Quick Answers

- **What is this?** Fosi Audio V3 300W x2 Power TPA3255 Mini Amp 2 Channel Class D Stereo Amplifier for Passive Tower Speakers for Home Theater Desktop Shelf Tower with 48V Power Supply by fosi audio
- **How much does it cost?** $289.21 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/639557545-fosi-audio-v3-300w-x2-power-tpa3255-mini-amp-2)

## Best For

- fosi audio enthusiasts

## Why This Product

- Trusted fosi audio brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Confidence in Quality:** Backed by a 24-month warranty, this compact Class D amp is built to last and impress in any home theater or desktop setup.
- • **Revolutionary Cooling:** Innovative top & bottom vents plus full-body heatsink keep your amp cool under pressure for uninterrupted performance.
- • **Powerhouse Performance:** Delivers a robust 300W x 2 channels to effortlessly drive 2-8Ω passive speakers with crystal-clear sound.
- • **Audiophile-Grade Components:** Premium Japanese NCC, ELNA, German WIMA capacitors & Sumida inductors ensure ultra-low distortion and pristine audio clarity.
- • **Customizable Sound Signature:** Swap out the original NE5532 op-amps with your choice of high-end 8-pin dual amplifiers to tailor your audio vibe.

## Overview

The Fosi Audio V3 is a compact yet powerful Class D stereo amplifier delivering 300W per channel with exceptional audio fidelity thanks to premium components and a TI TPA3255 chip. Its innovative full-body heatsink and vent design ensure optimal cooling, while swappable op-amps let you customize your sound. Perfect for audiophiles and professionals seeking clean, distortion-free sound in home theaters or office environments, it comes with a reassuring 24-month warranty.

## Description

Product Description Fosi Audio V3 Mini Stereo Power Amplifier Integrated quality components and groundbreaking heat dissipation design enable high and stable performance catering to audiophiles' demand. aplus content video Born for HiFi Enthusiasts Using a minimalist design language, focusing more on enhancing the sound quality and performance of the product, making it the best-sounding power amplifier of Fosi Audio to date. Max Power Output: 300Wx2@4Ω SINAD: 88dB | SNR: ≥110dB THD: ≤0.003% | Noise Floor: 140uF Frequency Response: 20Hz-20kHz TI TPA3255 Integrated Enabling superior audio quality & ultra-low distortion across the audio band with Class-D efficiency Swappable Op-Amps Compatible with 8-pin dual op-amps. Roll them to get your preferred sound signature Audiophile-Grade Capacitors Built-in quality Japanese NCC, ELNA, and German WIMA capacitors for outstanding performance Japanese SUMIDA Inductors Professional audio inductors which have lower impedance and enable support for larger currents Logarithmic Potentiometer Manage the volume of sound in a much finer way suitable for the human ear Groundbreaking Heat Dissipation Vents on the top and bottom, and whole-body heatsink design enhance air circulation and cooling About the "Pre-out" The "Pre-out" level is NOT controlled by the volume control. Comparison Chart V3 Type 2.0 CH Amp MAX Power Output 300W x 2 Input RCA Output Passive SPK +Pre-out Treble&Bass Control THD <0.003% SNR ≥110dB Learn More V3 Type 2.0 CH Amp MAX Power Output 300W x 2 Input RCA Output Passive SPK +Pre-out Treble&Bass Control THD <0.003% SNR ≥110dB TB10D Type 2.0 CH Amp MAX Power Output 300W x 2 Input RCA Output Passive Speakers Treble&Bass Control THD ≤ 0.3% SNR ≥ 90dB Learn More TB10D Passive Speakers ≤ 0.3% ≥ 90dB TDA7498E Type 2.0 CH Amp MAX Power Output 160W x 2 Input RCA Output Passive Speakers Treble&Bass Control THD ≤ 0.04% SNR ≥ 98dB Learn More TDA7498E 160W x 2 ≤ 0.04% ≥ 98dB TB10A Type 2.0 CH Amp MAX Power Output 100W x 2 Input RCA Output Passive Speakers Treble&Bass Control THD ≤ 0.04% SNR ≥ 98dB Learn More TB10A 100W x 2 48V Type 48V Power Supply MAX Power Output 240W Input - Output - Treble&Bass Control THD - SNR - Learn More 48V 48V Power Supply 240W -

Review: Elegant design, robust build, and stellar audio performance - The chassis is sleek, minimalist, and solidly built. The V3 has impressive amplification capabilities. It drives speakers maintaining clarity and dynamics. The sound signature is clean, transparent, and free from distortion.
Review: Value for money - Worth every penny. Powering dali tower speakers in a dolby atmos setup while avr is powering up the rest of the speakers. Noticeable improvement in clarity and bass of the towers. I wanted to reduce the load on my denon AVR and so far i am happy with my purchase.

## Features

- Compact and Powerful: The V3 mini power amplifier combines a minimalist design with exceptional performance. With an output power of up to 600W, it can effortlessly drive speakers from 2 to 8Ω, providing impressive sound quality. Its compact size allows it to adapt to a wide range of applications, from libraries and office facilities to home theaters.
- Audiophile Quality Components: It is equipped with the TPA3255 high-end Class D digital amplifier chip and uses premium Japanese NCC, ELNA and German WIMA capacitors, as well as Japanese Sumida inductors for outstanding audio quality. With a SINAD rating of up to 88dB, SNR of up to 110dB and a noise floor of only 140uF, it offers exceptional clarity and low distortion.
- Innovative cooling: The V3 stands out for its revolutionary heat dissipation design. Equipped with vents on the top and bottom of the case, and a full-body heatsink, it effectively dissipates heat, preventing damage to components and ensuring optimal performance.
- Scalable and Fun: Customize your sound experience by replacing the original NE5532 operational amplifiers. The V3 is compatible with a variety of 8-pin dual amplifiers like Sparkos SS3602, MUSES02, OPA2604, OPA2134PA, OP249, AD827, RM4559, LM4562, LME49720HA etc.
- PEACE OF MIND The V3 stereo amplifier brings you peace of mind. It is backed by a 24-month warranty, ensuring reliable performance and customer satisfaction.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CGCSM191 |
| Best Sellers Rank | #31,166 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #72 in Audio Amplifier |
| Brand Name | Fosi Audio |
| Country of Origin | China |
| Customer Reviews | 4.5 out of 5 stars 338 Reviews |
| Importer Contact Information | support@fosiaudio.com |
| Item Type Name | Amplifier |
| Manufacturer | Fosi Audio |
| Manufacturer Part Number | V3-48V |
| Model Number | V3_48V/5A |
| Packer Contact Information | support@fosiaudio.com |

## Images

![Fosi Audio V3 300W x2 Power TPA3255 Mini Amp 2 Channel Class D Stereo Amplifier for Passive Tower Speakers for Home Theater Desktop Shelf Tower with 48V Power Supply - Image 1](https://m.media-amazon.com/images/I/51jOyYN2wnL.jpg)
![Fosi Audio V3 300W x2 Power TPA3255 Mini Amp 2 Channel Class D Stereo Amplifier for Passive Tower Speakers for Home Theater Desktop Shelf Tower with 48V Power Supply - Image 2](https://m.media-amazon.com/images/I/61euCfmUJcL.jpg)
![Fosi Audio V3 300W x2 Power TPA3255 Mini Amp 2 Channel Class D Stereo Amplifier for Passive Tower Speakers for Home Theater Desktop Shelf Tower with 48V Power Supply - Image 3](https://m.media-amazon.com/images/I/71xQuKFNLwL.jpg)
![Fosi Audio V3 300W x2 Power TPA3255 Mini Amp 2 Channel Class D Stereo Amplifier for Passive Tower Speakers for Home Theater Desktop Shelf Tower with 48V Power Supply - Image 4](https://m.media-amazon.com/images/I/71SHro6HzvL.jpg)
![Fosi Audio V3 300W x2 Power TPA3255 Mini Amp 2 Channel Class D Stereo Amplifier for Passive Tower Speakers for Home Theater Desktop Shelf Tower with 48V Power Supply - Image 5](https://m.media-amazon.com/images/I/61dKq2uWlOL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Elegant design, robust build, and stellar audio performance
*by V***K on 27 June 2026*

The chassis is sleek, minimalist, and solidly built. The V3 has impressive amplification capabilities. It drives speakers maintaining clarity and dynamics. The sound signature is clean, transparent, and free from distortion.

### ⭐⭐⭐⭐⭐ Value for money
*by H***. on 11 January 2026*

Worth every penny. Powering dali tower speakers in a dolby atmos setup while avr is powering up the rest of the speakers. Noticeable improvement in clarity and bass of the towers. I wanted to reduce the load on my denon AVR and so far i am happy with my purchase.

### ⭐⭐⭐⭐ Awesome go for it
*by M***H on 9 October 2025*

Good i am using this as an dual subwoofer setup for denon x1800h av receiver using this for 2 weeks no issues working good, no distortion sound/humming issue

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-07-14*