---
product_id: 643218284
title: "Fosi Audio V3 Mono Power Amplifier for Home Audio Speakers, Mini Monoblock Class D Amp with TPA3255, 240W for HiFi Home Theater AVR Receiver Component, RCA/XLR Balanced Inputs 48V/5A Power"
brand: "fosi audio"
price: "1162 zł"
currency: PLN
in_stock: true
url: https://www.desertcart.pl/products/643218284-fosi-audio-v3-mono-power-amplifier-for-home-audio-speakers
store_origin: PL
region: Poland
---

# 240W Power Advanced Cooling THD 0.006% Fosi Audio V3 Mono Power Amplifier for Home Audio Speakers, Mini Monoblock Class D Amp with TPA3255, 240W for HiFi Home Theater AVR Receiver Component, RCA/XLR Balanced Inputs 48V/5A Power

**Brand:** fosi audio
**Price:** 1162 zł
**Availability:** ✅ In Stock

## Summary

> 🎶 Elevate Your Audio Game with Fosi!

## Quick Answers

- **What is this?** Fosi Audio V3 Mono Power Amplifier for Home Audio Speakers, Mini Monoblock Class D Amp with TPA3255, 240W for HiFi Home Theater AVR Receiver Component, RCA/XLR Balanced Inputs 48V/5A Power by fosi audio
- **How much does it cost?** 1162 zł with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/643218284-fosi-audio-v3-mono-power-amplifier-for-home-audio-speakers)

## 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

- • **Unleash Your Sound:** Experience 240W of pure audio power, perfect for any home theater setup.
- • **Audiophile-Approved:** Crafted with high-end components for unparalleled sound fidelity.
- • **User-Centric Design:** Flexible input options and customizable sound signature for the ultimate listening experience.
- • **Innovative Tech Inside:** PFFB technology enhances performance, reducing distortion and improving frequency response.
- • **Stay Cool Under Pressure:** Advanced cooling design ensures consistent high-power output without overheating.

## Overview

The Fosi Audio V3 Mono Power Amplifier is a high-performance Class D amplifier designed for audiophiles, delivering up to 240W of power with exceptional sound quality. Featuring advanced PFFB technology, premium components, and a user-friendly design, it’s perfect for enhancing your home audio experience.

## Description

Fosi Audio V3 Mono Power Amplifier for Home Audio Speakers, Mini Monoblock Class D Amp with TPA3255, 240W for HiFi Home Theater AVR Receiver Component, RCA/XLR Balanced Inputs 48V/5A Power

## Features

- Mini Monoblock Amplifier: Crafted for HiFi audiophiles, the V3 Mono allows you to drive a single passive speaker with one amp, delivering up to 240W @4Ω of rated power. It offers the flexibility to build your home audio 2/3/4/5-channel system effortlessly. The V3 Mono can serve as a power amplifier for multi-channel AVRs, complementing the output power to easily drive high-power speakers in home theater systems.
- Innovative Cutting-Edge Technology: Fosi Audio has achieved a technological breakthrough through independent research and development by applying PFFB (Post-Filter Feedback) technology to the V3 Mono for the first time. This effectively overcomes the common load dependency issues of Class-D amplifiers, improving distortion and enhancing frequency response, thereby significantly enhancing sound quality and performance.
- Audiophile-Grade Components: The V3 Mono incorporates the high-end TPA3255 Class-D amp chip, paired with well-known components such as Japanese Nichicon filter capacitors, ELNA capacitors, German WIMA capacitors, and Japanese Sumida inductors, etc. Additionally, it features an upgraded four-layer PCB. This combination not only ensures high power output but also achieves a THD as low as 0.006%, a SINAD of 101dB, and an SNR of 123dB. As a result, the fidelity and quality of the audio are assured.
- Advanced Cooling: Utilizing Fosi Audio's pioneering full-body heat dissipation design, the TPA3255 amplifier chip is placed at the bottom and tightly integrated with the chassis, allowing heat to be effectively dissipated through the casing. Coupled with dual side ventilation holes that enhance internal airflow, this ensures the V3 Mono can deliver stable, high-power output over extended periods.
- User-Friendly Design: Supports both XLR/¼" TRS balanced and RCA single-ended(with gain selection) inputs, with an easy toggle switch for selection. Additionally, it features an auto power/signal sensing mode to enhance energy efficiency. You can also customize your preferred sound signature by replacing the stock NE5532 op-amps, supporting DIP8 dual discrete op-amps. For example, it will work with Sparkos SS3602, MUSES02, OPA2604, Burson V5i, V6, V7, and more.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Material Type | [metal] |
| Item Dimensions | 5.59 x 4.2 x 1.61 inches |
| Number of Channels | 1 |
| Supply Current | 1.04 Amps |
| Output Power | 2.4E+2 Watts |
| Mounting Type | Surface Mount |
| Voltage | 48 Volts |

## Product Details

- **Item dimensions L x W x H:** 14.2 x 10.7 x 4.1 centimeters
- **Voltage:** 230 Volts
- **Manufacturer:** Fosiaudio
- **Maximum supply voltage:** 48 Volts (DC)
- **Minimum supply voltage:** 48 Volts (DC)

## Images

![Fosi Audio V3 Mono Power Amplifier for Home Audio Speakers, Mini Monoblock Class D Amp with TPA3255, 240W for HiFi Home Theater AVR Receiver Component, RCA/XLR Balanced Inputs 48V/5A Power - Image 1](https://m.media-amazon.com/images/I/51x7N0QpPSL.jpg)

## Questions & Answers

**Q: No sound change after switching the gain switch?**
A: The gain switch on the V3 MONO only works with the RCA input. When using RCA mode, switching the gain setting will noticeably change the volume. (If it's already set to RCA mode, the output level from the preamp is usually sufficient.)

**Q: Would the noise still occur if no audio input cables are connected?**
A: Try replacing the audio source, using well-shielded audio cables, and switching to a different speaker.

**Q: Doesn't work in standby mode?**
A: Use a separate power supply and power strip for each V3 MONO to avoid ground-loop noise affecting the standby function; if the light dims but the unit doesn't automatically shut down, please try replacing high-quality RCA cables.

**Q: V3 MONO don't have volume control or knobs?**
A: Yes. V3 MONO is a pure power amplifier, it is recommended to use it with a DAC, preamplifier, or player with volume control.

**Q: What's the V3 MONO?**
A: V3 MONO is a mono channel amplifier. To achieve 2 channel amplifier effect, two V3 MONO are needed to connect two speakers.

## Frequently Bought Together

- Fosi Audio V3 Mono Power Amplifier for Home Audio Speakers, Mini Monoblock Class D Amp with TPA3255, 240W for HiFi Home Theater AVR Receiver Component, RCA/XLR Balanced Inputs 48V/5A Power
- Fosi Audio ZD3 Desktop DAC Preamp, Fully Balanced Digital to Analog Audio Converter with ES9039Q2M for Home Stereo Amplifier, Bluetooth/USB/Optical/Coax/TV HDMI ARC Input, XLR/RCA Output with Remote

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*Product available on Desertcart Poland*
*Store origin: PL*
*Last updated: 2026-02-05*