---
product_id: 588475459
title: "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"
brand: "fosi audio"
price: "AR$855370"
currency: ARS
in_stock: true
category: "Fosi Audio"
url: https://www.desertcart.com.ar/products/588475459-fosi-audio-za3-balanced-stereo-amplifier-home-audio-component-mini
store_origin: AR
region: Argentina
---

# 155W stereo output 235W mono output Balanced input support 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

**Brand:** fosi audio
**Price:** AR$855370
**Availability:** ✅ In Stock

## Summary

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

## Quick Answers

- **What is this?** 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 by fosi audio
- **How much does it cost?** AR$855370 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.ar](https://www.desertcart.com.ar/products/588475459-fosi-audio-za3-balanced-stereo-amplifier-home-audio-component-mini)

## 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

## Features

- Dual-Mode Innovation: This new generation mini amplifier offers both stereo and mono modes, adapts flexibly to your diverse needs, allowing seamless mode switching. In stereo mode, it delivers a robust output of up to 180W, while in mono mode, the power soars to a maximum of 235W. Pair two ZA3 units in mono configuration to create a powerful audio system, significantly enhancing your listening experience(Includes two-year warranty).
- Richer Connectivity: Debut amplifier with balanced input and trigger in, the ZA3 features a balanced combo audio signal input connector supporting both XLR and 1/4" TRS plugs. This design minimizes interference and reduces noise floor. The 12V trigger-in connector enables synchronization with other devices, streamlining the process of turning on/off without individual operations
- Audiophile-Grade Components: The ZA3 features the TPA3255 high-end Class-D amp chip and utilizes premium Japanese NCC, ELNA, and German WIMA capacitors, and Japanese Sumida inductors for exceptional audio quality. With a SINAD rating of up to 89dB, an SNR of up to 106dB, and a low noise floor of only 150μV, it delivers exceptional clarity and low distortion
- Advanced Heat Dissipation: Based on V3's groundbreaking heat dissipation design, we upgraded ZA3's cooling system by featuring a larger chassis, moving vents to the sides, and adding dust covers to achieve better ventilation for a sustained and stable high power output
- Enhanced Scalable Fun: Personalize your audio experience with the op-amp rolling feature! The ZA3 stocks five swappable op-amps for left and right channel outputs, balanced input, and subwoofer output. Experiment with compatible DIP8 dual op-amps such as Sparkos SS3602, MUSES02, OPA2604, OPA2134PA, OP249, AD827, RM4558, LM4562, LME49720HA, etc. to fine-tune your sound to perfection(Includes two-year warranty).

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CLP4T5L7 |
| Best Sellers Rank | #21,050 in Electronics ( See Top 100 in Electronics ) #14 in Hi-Fi Amplifiers |
| Brand Name | Fosi Audio |
| Customer Reviews | 4.5 4.5 out of 5 stars (1,323) |
| Importer Contact Information | support@fosiaudio.com. |
| Item Dimensions | 15.5 x 18.4 x 5.1 Centimeters |
| Manufacturer | Fosi Audio |
| Maximum Supply Voltage | 48 Volts |
| Minimum Supply Voltage | 48 Volts |
| Model Number | ZA3 |
| Mounting Type | Surface Mount |
| Number of Channels | 2 |
| Number of Items | 1 |
| Number of Packs | 1 |
| Output Power | 545 Watts |
| Packer Contact Information | support@fosiaudio.com. |
| Part Number | ZA3 |
| Specification Met | RoHS |
| Voltage | 48 Volts |
| Warranty Description | two years |

## 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

![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 - Image 1](https://m.media-amazon.com/images/I/31FCoeGLEeL.jpg)
![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 - Image 2](https://m.media-amazon.com/images/I/41GnKLmEwrL.jpg)
![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 - Image 3](https://m.media-amazon.com/images/I/419pTD4uujL.jpg)
![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 - Image 4](https://m.media-amazon.com/images/I/41O8SYW3qYL.jpg)
![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 - Image 5](https://m.media-amazon.com/images/I/51p2O+UL2UL.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.

## 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 Argentina*
*Store origin: AR*
*Last updated: 2026-10-07*