---
product_id: 588475459
title: "- ZA3 Balanced Stereo Amplifier Home Audio Component Mini 2 Channel Mono Amp TPA3255 for Subwoofer Desktop Home Theater Bookshelf Tower Floorstanding Passive Speakers with 48V Power Supply"
brand: "fosi audio"
price: "221661CFA"
currency: XOF
in_stock: true
reviews_count: 13
category: "Fosi Audio"
url: https://www.desertcart.sn/products/588475459-za3-balanced-stereo-amplifier-home-audio-component-mini-2-channel
store_origin: SN
region: Senegal
---

# 155W stereo output 235W mono output Balanced input support - ZA3 Balanced Stereo Amplifier Home Audio Component Mini 2 Channel Mono Amp TPA3255 for Subwoofer Desktop Home Theater Bookshelf Tower Floorstanding Passive Speakers with 48V Power Supply

**Brand:** fosi audio
**Price:** 221661CFA
**Availability:** ✅ In Stock

## Summary

> 🎶 Elevate Your Sound Game with the Fosi Audio ZA3!

## Quick Answers

- **What is this?** - ZA3 Balanced Stereo Amplifier Home Audio Component Mini 2 Channel Mono Amp TPA3255 for Subwoofer Desktop Home Theater Bookshelf Tower Floorstanding Passive Speakers with 48V Power Supply by fosi audio
- **How much does it cost?** 221661CFA with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sn](https://www.desertcart.sn/products/588475459-za3-balanced-stereo-amplifier-home-audio-component-mini-2-channel)

## 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

- • **Dual-Mode Flexibility:** Switch seamlessly between stereo and mono modes for tailored audio experiences.
- • **Enhanced Connectivity:** Balanced input minimizes interference, while 12V trigger-in simplifies device synchronization.
- • **Advanced Heat Management:** Innovative cooling design ensures sustained high power output without overheating.
- • **Personalized Sound Tuning:** Experiment with swappable op-amps to customize your audio output to perfection.
- • **Audiophile-Grade Components:** Experience superior sound quality with high-end Class-D amp chip and premium capacitors.

## Overview

The Fosi Audio ZA3 is a versatile mini amplifier designed for audiophiles, offering both stereo and mono modes with powerful outputs of up to 155W and 235W respectively. It features high-quality components for exceptional audio clarity, advanced heat dissipation for reliable performance, and flexible connectivity options, making it an ideal choice for enhancing your home audio experience.

## Description

Fosi Audio ZA3 Balanced Stereo Amplifier Home Audio Component Mini 2 Channel Mono Amp TPA3255 for Subwoofer Desktop Home Theater Bookshelf Tower Floorstanding Passive Speakers with 48V Power Supply : desertcart.in: Electronics

Review: changed my opinion about class D amps! - where to begin! My previous setup was Marantz PM6007 with WiiM Ultra & Elipson Planet L Speakers. I was ok with the setup but I knew, was missing something on the higher frequencies & details. just heard about this product on youtube channel "VirtualHiFi" - found many good videos with sound test comparing with 10k - 15k USD costing amps. I took the decision & bought this today with 48V power supply & right now its been playing for 3 hours replacing the marantz PM6007 only with rest of the same setup. I have no words to say - Man! it's blown away the marantz right out of the box and my elipson planet L speakers have come to life. it's a night & day difference. I kept the volume at 75% position & controlling the volume from wiim ultra and it's running cooler now than at 100% position. i am seriously thinking about the reason why it is sounding great than the marantz. Hmm.. may be one reason - the frequency range with 0.1+-DB? I don't know but it's sounding fuller, detailed, airy high-frequencies & analogue kind of texture. ZA3 changed my mind to join in the class D era as I have ordered another now to try as Monoblocks. I am totally happy & the value for money is top of the roof! I really appreciate the FOSI TEAM behind this to design such a great product! Best of luck for your next musical invention!!! Got the second one & set them as monoblocks - sound stage is wider now & details are more cleaner especially the vocals & mid range. I started enjoying my setup now with peace of mind!
Review: It's a segment topper - Class D is the new normal in audio amplifiers. Output is great. It has enough juice to drive my fyne audio towers. Power supply is bulky, though I feel an LPS or GaN power supply will boost the quality more.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CLP4T5L7 |
| Batteries Included | No |
| Batteries Required | No |
| Best Sellers Rank | #23,363 in Electronics ( See Top 100 in Electronics ) #23 in Hi-Fi Amplifiers |
| Brand | Fosi Audio |
| Customer Reviews | 4.5 4.5 out of 5 stars (958) |
| Date First Available | 19 July 2024 |
| Does it contain liquid? | No |
| Importer | support@fosiaudio.com. |
| Includes Rechargeable Battery | No |
| Item Dimensions LxWxH | 15.5 x 18.4 x 5.1 Centimeters |
| Item Weight | 1 kg 200 g |
| Item dimensions L x W x H | 15.5 x 18.4 x 5.1 Centimeters |
| Item model number | ZA3 |
| Manufacturer | Fosi Audio |
| Maximum Supply Voltage | 48 Volts |
| Minimum Supply Voltage | 48 Volts |
| Model | ZA3 |
| Mounting Type | Surface Mount |
| Noise Level | 12 Decibels |
| Number of Channels | 2 |
| Output Power | 545 Watts |
| Packer | support@fosiaudio.com. |
| Product Dimensions | 15.49 x 18.39 x 5.08 cm; 1.2 kg |
| Voltage | 48 Volts |
| Wattage | 235 Watts |

## Product Details

- **Item dimensions L x W x H:** 15.5 x 18.4 x 5.1 Centimeters
- **Manufacturer:** Fosi Audio
- **Maximum Supply Voltage:** 48 Volts
- **Minimum Supply Voltage:** 48 Volts
- **Voltage:** 48 Volts

## Images

![- ZA3 Balanced Stereo Amplifier Home Audio Component Mini 2 Channel Mono Amp TPA3255 for Subwoofer Desktop Home Theater Bookshelf Tower Floorstanding Passive Speakers with 48V Power Supply - Image 1](https://m.media-amazon.com/images/I/51XgZUlMEQL.jpg)

## Questions & Answers

**Q: Is it possible to use the trigger out from the Fosi Audio ZD3 to two pieces of ZA3 amplifiers?**
A: Yes, use a dual 3.5mm male splitter cable to trigger the ZA3 to switch on synchronously.

**Q: How to set up a system using two ZA3 units in mono mode?**
A: - Connect the RCA (XLR) cables to the right-channel RCA (XLR) input ports of the two ZA3 units, and link the speaker wires to the right-channel binding posts.

**Q: ZA3 recommendations for replacing op-amps in mono mode?**
A: If you're using RCA mode, please replace only the right op-amp. For XLR mode, swap the right and XLR channel op-amps.

**Q: No front light on ZA3 though there is light on the ac adapter.**
A: Long press the volume button for 2 seconds to power it on.

**Q: The power on LED light on my ZA3 is dead.**
A: Check if the LED is misaligned with the front panel hole, especially if the op-amp was recently changed. Misalignment could cause the LED not to be visible through the case.

## Customer Reviews

### ⭐⭐⭐⭐⭐ changed my opinion about class D amps!
*by A***R on 25 August 2025*

where to begin! My previous setup was Marantz PM6007 with WiiM Ultra & Elipson Planet L Speakers. I was ok with the setup but I knew, was missing something on the higher frequencies & details. just heard about this product on youtube channel "VirtualHiFi" - found many good videos with sound test comparing with 10k - 15k USD costing amps. I took the decision & bought this today with 48V power supply & right now its been playing for 3 hours replacing the marantz PM6007 only with rest of the same setup. I have no words to say - Man! it's blown away the marantz right out of the box and my elipson planet L speakers have come to life. it's a night & day difference. I kept the volume at 75% position & controlling the volume from wiim ultra and it's running cooler now than at 100% position. i am seriously thinking about the reason why it is sounding great than the marantz. Hmm.. may be one reason - the frequency range with 0.1+-DB? I don't know but it's sounding fuller, detailed, airy high-frequencies & analogue kind of texture. ZA3 changed my mind to join in the class D era as I have ordered another now to try as Monoblocks. I am totally happy & the value for money is top of the roof! I really appreciate the FOSI TEAM behind this to design such a great product! Best of luck for your next musical invention!!! Got the second one & set them as monoblocks - sound stage is wider now & details are more cleaner especially the vocals & mid range. I started enjoying my setup now with peace of mind!

### ⭐⭐⭐⭐⭐ It's a segment topper
*by A***T on 25 September 2025*

Class D is the new normal in audio amplifiers. Output is great. It has enough juice to drive my fyne audio towers. Power supply is bulky, though I feel an LPS or GaN power supply will boost the quality more.

### ⭐⭐⭐⭐⭐ Sound quality and power
*by S***P on 26 January 2025*

Sound quality is just superb, sound stage is wide and very natural without colouration, used with SMSL dac so quality was amazing , 48V PSU is enough for normal rooms , used RCA but will be using with XLR for balanced connection would definitely improve sound quality, overall very satisfied

## Frequently Bought Together

- Fosi Audio ZA3 Balanced Stereo Amplifier Home Audio Component Mini 2 Channel Mono Amp TPA3255 for Subwoofer Desktop Home Theater Bookshelf Tower Floorstanding Passive Speakers with 48V Power Supply
- VANDESAIL XLR Cables, 3ft 2 Pack Microphone Cable, XLR Male to Female Balanced Microphone Cord 3 pin, 3 Foot Short mic Cord Oxygen-Free Copper (OFC) Nylon Braided

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*Product available on Desertcart Senegal*
*Store origin: SN*
*Last updated: 2026-02-05*