---
product_id: 593516485
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: "COP 1111385"
currency: COP
in_stock: true
category: "Fosi Audio"
url: https://www.desertcart.co/products/593516485-fosi-audio-za3-balanced-stereo-amplifier-home-audio-component-mini
store_origin: CO
region: Colombia
---

# 235W max power output Balanced XLR/TRS combo input Advanced heat dissipation system 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:** COP 1111385
**Availability:** ✅ In Stock

## Summary

> 🎧 Power your sound, own the room.

## 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?** COP 1111385 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co](https://www.desertcart.co/products/593516485-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

- • **Customizable Sound Tuning:** Swap op-amps to tailor your audio signature and stand out in your audiophile circle.
- • **Next-Level Cooling Design:** Enhanced ventilation and dust covers keep your amp running cool during marathon listening sessions.
- • **Dual-Mode Power Flexibility:** Switch effortlessly between 155W stereo and 235W mono modes to match your audio setup.
- • **Audiophile-Approved Components:** Premium TPA3255 chip and high-end capacitors deliver pristine clarity with ultra-low distortion.
- • **Pro-Grade Balanced Connectivity:** XLR and 1/4" TRS inputs reduce noise for crystal-clear sound in any environment.

## Overview

The Fosi Audio ZA3 is a compact yet powerful stereo amplifier featuring dual-mode operation with up to 235W output, balanced XLR/TRS inputs for noise-free connectivity, and premium audiophile-grade components. Its advanced heat dissipation system ensures stable performance, while customizable op-amp rolling lets you fine-tune your sound. Perfect for desktop, home theater, and bookshelf speakers, it’s designed for professionals and enthusiasts who demand clarity, power, and flexibility.

## Description

Buy 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 online on desertcart.ae at best prices. ✓ Fast and free shipping ✓ free returns ✓ cash on delivery available on eligible purchase.

## 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 155W, 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.
- 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.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CLP4T5L7 |
| Best Sellers Rank | #7,139 in Electronics ( See Top 100 in Electronics ) #8 in Home Audio Amplifiers |
| Brand Name | Fosi Audio |
| Customer Reviews | 4.5 4.5 out of 5 stars (1,291) |
| Item Dimensions | 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) |
| Minimum Supply Voltage | 24 Volts (DC) |
| Model | ZA3 |
| 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

![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/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
- 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 Colombia*
*Store origin: CO*
*Last updated: 2026-09-04*