Skip to main contentSkip to footer
1 of 9

Overview

The ZA3 mini amplifier features stereo/mono modes (180W/235W), balanced XLR/TRS input, 12V trigger, audiophile-grade components, advanced cooling, and op-amp rolling for sound customization. It ensures powerful, noise-free performance with premium parts and flexible, scalable audio enhancements.

Fosi Audio ZA3 Balanced Stereo or Mono Amplifier (235Wx1/155Wx2 @4Ω) Home Mini Desktop Audio w/ TPA3255 Chip & Subwoofer Preamp Out & 48V Power Supply

Model: ZA3 48V
Web Code: 19330368
Sold and shipped by | 4.8 seller rating (11 reviews)

Sale ends: *

Available for deliveryAvailable online only

Delivery times vary by location. Most Marketplace items leave sellers' locations within 2 business days. Allow additional time for shipping.

Seller Return Policy

Warranty

Check with the manufacturer for details.

For Quebec residents: See the Availability Guarantee disclosure in the Specifications section below.

What's included:

  • Fosi Audio ZA3 Power Amplifier x1
  • Power Adapter x1
  • User Manual x1

Fosi Audio ZA3 The Next Generation Balanced Dual-Mode Class-D Amplifier

Amplifying Your Voice, Shaping Our Innovation

At Fosi Audio, behind every innovation, there's a story. The birth of the ZA3 amplifier is just such a story, centered around our users.After the launch of the V3 amplifier, we gathered innumerable feedback from passionate audiophiles. They expressed a desire for us to develop an even better amplifier based on V3.

We listened, we reflected, and we took action. After countless design sketches, numerous prototype developments, and a comprehensive regime of rigorous testing, the blueprint of the ZA3 amplifier gradually took form. Every adjustment and detail refinement was a thoughtful response to our customers' input. We didn't just listen to their needs; we immersed ourselves in their passion for quality sound. Our goal was to not only meet but exceed their expectations, crafting an amplifier that embodies their pursuit of auditory excellence and aligns with our dedication to superior sound.

ZA3 is more than just a product; it's the crystallization of joint efforts between Fosi Audio and our users. We proudly say that every customer is a co-designer behind this amplifier. From the balanced XLR input to the support for mono mode, every feature of ZA3 is crafted to meet audiophiles' most authentic audio experience. At Fosi Audio, we believe that true innovation stems from listening to the heart, fueled by shared passion and pursuit. ZA3 is our commitment to excellence, and a shared audio legend that we write together with you.

Why Fosi Audio ZA3?

• XLR Input

• Large Power Output

• TPA3255 Amp Chip

• Optimized Circuit Board Layout

• Replaceable Op-Amps

• Upgraded Heat Dissipation

• Japanese NCC Capacitors

• Japanese ELNA Capacitors

• German WIMA Capacitors

• Japanese Sumida Inductors

• Taper A Pot

• 12V Trigger in

Debut Balanced Stereo/Mono Amplifier

Effortlessly Switch Between Modes to Craft Your Ideal HiFi System with Premium Sound Quality

Easy 2.1-Ch Upgrade

Subwoofer Output for Superior Experience

PBTL Mono Mode Support

More Power Output to Elevate Your Stereo HiFi System to New Heights

TI TPA3255 Amp Chip Integrated​

Enabling Superior Audio Quality and Ultra-Low Distortion Across the Audio Band with Class-D Efficiency

Advanced Heat Dissipation Design

Enhanced Cooling with Larger Chassis, Whole-Body Heatsink Design, and Side Ventilation with Dust Covers

Separated Digital & Analog Modules

Optimized circuit board layout protects core audio modules from interference for a purer sound experience.

Swappable Op-Amps

It enables you to customize your audio experience with ease, by effortlessly rolling op-amps to suit your unique sound preferences.

Taper A Potentiometer

It helps achieve a linear listening experience, by enabling precise volume control to match the human ear's auditory characteristics.

More Functions

12V Trigger Sync Interface - Sync with Other Devices for One-Click Power Control

Aluminum Alloy and One-Piece Molded Chassis - Delicate Sandblast, Smooth Edges, Premium Feel

Convenient Mode Switching - Choose Between Two Input Modes Easily with a Toggle Switch

Specifications

Channel: 2.0

Amplifier Chip: Texas Instruments TPA3255

SINAD: 89dBSNR: ≥106dB

Dynamic Range: ≥106dB

THD: <0.006%

Speaker Impedance Compatibility: 2-8Ω

Rated Power Output:With 48V/5A PSU

Stereo: 180Wx2 @4Ω

Mono: 235Wx1 @4ΩWith 32V/5A PSU

Stereo: 95Wx2 @4Ω

Mono: 110Wx1 @4Ω

Frequency Response: 20Hz - 20KHz(±0.1dB)

Input Voltage Range: DC 24-48V

Input & Output

Input: RCA, XLR, 1/4" TRS

Output: Speaker Output (supports banana plug or bare wire connection), Active Subwoofer Output

What's in the box?

Fosi Audio ZA3 Power Amplifier x1

Power Adapter x1

User Manual x1

Product Condition
Brand New

Receiver Features

On-Screen Display
No
Remote Control Type
Infrared

Inputs/Outputs

Number of Audio Inputs
3
Preamp Outputs
RCA: Subwoofer Out

For Quebec residents – Disclosure under the Consumer Protection Act

In compliance with Bill 29, Best Buy and third-party sellers on Best Buy Marketplace do not guarantee the availability of replacement parts, repair services, or maintenance information for any products. Coverage provided through any Best Buy Protection programs and applicable manufacturer warranties, if any, remain in place. Please contact the manufacturer directly for information about their availability guarantee.

Shipping Charges

Free standard shipping on all orders over $100 (before taxes, fees, and promo codes).

Processing Time

Most items ship within 2 business days after an order is placed*. Allow additional time for shipping to your address.
*Please note: If an item you ordered becomes unavailable, you'll be notified and a full refund will be processed within 2 business days.

Shipping Area Restrictions

Shipping is not available in the following areas*:
  • Saskatchewan (Remote)
  • Manitoba (Remote)
  • Ontario (Remote)
  • Quebec (Remote)
  • New Brunswick
  • Nova Scotia
  • Prince Edward Island
  • Newfoundland and Labrador
  • Yukon
  • Northwest Territories
  • Nunavut
*Please note: Shipping area restrictions may vary for large items. If an item can't be shipped to your address, we'll let you know during the checkout process.
Product Category
Home theatre audio products
Return/Exchange Period
30 days
Condition
Opened