---
product_id: 593516485
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: "€ 303.38"
currency: EUR
in_stock: true
category: "Fosi Audio"
url: https://www.desertcart.es/products/593516485-za3-balanced-stereo-amplifier-home-audio-component-mini-2-channel
store_origin: ES
region: Spain
---

# 235W max power output Balanced XLR & 1/4" TRS inputs Advanced heat dissipation system 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:** € 303.38
**Availability:** ✅ In Stock

## Summary

> 🎶 Power Your Passion with Precision and Style

## 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?** € 303.38 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.es](https://www.desertcart.es/products/593516485-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

- • **Sleek & Cool Design:** Aluminum alloy chassis with enhanced ventilation keeps your amp running powerful and pristine.
- • **Dual-Mode Powerhouse:** Switch effortlessly between 155W stereo and 235W mono modes to match your audio ambitions.
- • **Seamless Connectivity:** Balanced combo inputs plus 12V trigger sync for a noise-free, integrated home theater setup.
- • **Audiophile-Grade Clarity:** Experience pristine sound with TPA3255 chip and premium Japanese & German components delivering 106dB SNR.
- • **Customizable Sound Signature:** Swap op-amps to tailor your audio vibe—perfect for the discerning ear seeking sonic perfection.

## Overview

The Fosi Audio ZA3 is a compact, dual-mode Class-D amplifier delivering up to 235W in mono and 155W per channel in stereo. Featuring balanced XLR and 1/4" TRS inputs, premium audiophile components, and advanced heat dissipation, it offers exceptional clarity and low distortion. Its customizable op-amp slots and 12V trigger sync make it a versatile, high-performance choice for home theater and HiFi enthusiasts seeking professional-grade sound in a sleek, durable chassis.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CLP4T5L7 |
| Best Sellers Rank | #11,930 in Electronics ( See Top 100 in Electronics ) #23 in Home Audio Amplifiers |
| Brand Name | Fosi Audio |
| Customer Reviews | 4.5 out of 5 stars 1,291 Reviews |
| Item Dimensions | 15.5 x 18.4 x 5.1 centimeters |
| Item dimensions L x W x H | 15.5 x 18.4 x 5.1 centimeters |
| Manufacturer | Fosi Audio |
| Material Type | metal |
| Maximum Output Power | 235 watts |
| Maximum Supply Voltage | 48 Volts (DC) |
| Maximum supply voltage | 48 Volts (DC) |
| Minimum Supply Voltage | 24 Volts (DC) |
| Minimum supply voltage | 24 Volts (DC) |
| Model | ZA3 |
| Mounting Type | Surface Mount |
| Mounting type | Surface Mount |
| Number of Channels | 2 |
| Number of Items | 1 |
| Number of Packs | 1 |
| Output Power | 235 Watts |
| Part Number | ZA3 |
| Specification Met | RoHS |
| Unit Count | 1 Count |
| Voltage | 48 Volts |

## 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 (DC)
- **Minimum supply voltage:** 24 Volts (DC)
- **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.

## 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
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*Product available on Desertcart Spain*
*Store origin: ES*
*Last updated: 2026-08-14*