---
product_id: 593516480
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: "SAR 851"
currency: SAR
in_stock: true
url: https://www.desertcart.com.sa/products/593516480-za3-balanced-stereo-amplifier-home-audio-component-mini-2-channel
store_origin: SA
region: Saudi Arabia
---

# 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:** SAR 851
**Availability:** ✅ In Stock

## Summary

> 🎧 Power your passion with precision and style — don’t just listen, experience!

## 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?** SAR 851 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.sa](https://www.desertcart.com.sa/products/593516480-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

- • **Customizable Sound Tuning:** Roll your own sonic signature with five swappable op-amps—fine-tune your audio like a true sound connoisseur.
- • **Next-Level Cooling Design:** Stay cool under pressure with an upgraded chassis featuring side vents and dust covers for stable, high-power performance.
- • **Dual-Mode Power Flexibility:** Switch effortlessly between 180W stereo and 235W mono modes to match your audio setup and maximize impact.
- • **Audiophile-Approved Components:** Experience crystal-clear sound with TPA3255 Class-D chip and top-tier Japanese and German capacitors and inductors.
- • **Pro-Grade Balanced Connectivity:** Minimize noise and interference with premium balanced inputs and 12V trigger sync for seamless device integration.

## Overview

The Fosi Audio ZA3 is a compact yet powerful stereo amplifier delivering up to 235W in mono mode with advanced balanced inputs and premium audiophile components. Its innovative dual-mode design, superior heat dissipation, and customizable op-amp rolling make it a versatile powerhouse for desktop, home theater, or bookshelf speakers. Engineered for clarity and low noise, it’s a must-have for discerning millennials seeking high-fidelity sound and seamless integration.

## 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: Amplifiers - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

## 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
- 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 | #5,649 in Electronics ( See Top 100 in Electronics ) #16 in Audio Component Amplifiers |
| Brand Name | Fosi Audio |
| Customer Reviews | 4.6 4.6 out of 5 stars (1,231) |
| Included Components | Fosi Audio ZA3 Power Amplifier x1；48V5A Power Adapter x1；User Manual x1 |
| Item Dimensions | 6.1 x 7.24 x 2 inches |
| Manufacturer | Fosi Audio |
| Maximum Output Power | 235W |
| Maximum Supply Voltage | 48 Volts (DC) |
| Minimum Supply Voltage | 24 Volts (DC) |
| Model | ZA3 |
| Mounting Type | Surface Mount |
| Number of Channels | 2 |
| Output Power | 235 Watts |
| Package Type Name | Cardboard Box |
| Part Number | ZA3 |
| Specification Met | FCC |
| Unit Count | 1.0 Count |
| Voltage | 48 Volts |
| Warranty Description | 24-month manufacturer |

## Product Details

- **Item dimensions L x W x H:** 6.1 x 7.24 x 2 inches
- **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
- 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 Saudi Arabia*
*Store origin: SA*
*Last updated: 2026-07-05*