Fosi Audio ZA3 – Balanced Class-D Stereo/Mono Amplifier with XLR

Fosi Audio ZA3 – Balanced Class-D Stereo/Mono Amplifier with XLR

Product form

The Fosi Audio ZA3 is a compact yetpowerfulstereo amplifier that leveragesmodern Class D technology to deliverhigh-fidelity sound. lt stands out... Read more

Next day delivery

$129.90  $109.99 Excl. VAT

    • Guaranteed secure & safe checkout.

      shop pay
    • Shipped today? Order within: Nov 05, 2025 23:59:00 +0800
    • Free shipping on all orders above 50,00
    • No hassle returns, 30 days return
    Pay whenever you want

    Easily pay within 30 days after you have received your package.
    Read more

    Description

    The Fosi Audio ZA3 is a compact yetpowerfulstereo amplifier that leveragesmodern Class D technology to deliverhigh-fidelity sound. lt stands out in thecrowded market of miniamplifiers due toits exceptional power output,flexibleconfiguration options,and support forhigh-resolution audio, making it an ideacenterpiece for a wide range of homeaudio systems.
    Key Features:
    1. High Power Output & TPA3255 Chip:At the heart of the ZA3 is therenowned Texas instrumentsTPA3255 amplifier chip, a benchmarkfor performance in the Class Dcategory.
    lt delivers robust power, typically**165Wx2 (at 4Ω, with a 36V powersupply)**, This substantial outputallows it to drive a wide variety ofbookshelf and floor-standingspeakers with ease and dynamic headroom.

    Specifications

    • Weight: 200gr
    • Usage: Indoor & outdoor

    Pros and cons

    • Sustainably produced
    • Ideal for everyday use
    • May discolor in direct sunlight
    • <h1><strong>FosiAudioZA3</strong></h1>

      FosiAudioZA3

      The next generation balanced dual-mode Class-D power

      amplifier. Fosi Audio's first amplifier supporting both stereo

      and mono modes.

      • 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.

        • Input: RCA, XLR, ¼”TRS; Output: Stereo, Mono
        • SNR≥106dB; THD<0.006%; SINAD: 89dB; Frequency Response: 20Hz-20kHz (±0.1dB)
        • Rated Power Output: Stereo 180W*2 @4Ω; Mono 235W @4Ω
      <h1>TI TPA3255:Amp chip </h1><h1>Integrated</h1>

      TI TPA3255:Amp chip

      Integrated

      Enabling superior sound and ultra-low distortion across the audio band

      with Class-D efficiency.

      <h1>Swappable Op-Amps</h1>

      Swappable Op-Amps

      Compatible with DlP8 dual op-amps. Roll them to get your preferred sound
      signature.

      • <strong>12V Trigger Sync Interface</strong>

        12V Trigger Sync Interface

      • <strong>Aluminum Alloy and One-Piece Molded Chassis</strong>

        Aluminum Alloy and One-Piece Molded Chassis

      • <strong>Aluminum Alloy and One-Piece Molded Chassis</strong>

        Aluminum Alloy and One-Piece Molded Chassis

      Productdetails

      Description
      • Dual-Mode Innovation: This new generation mini amplifier offers both stereo and mono modes, and 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, OPA2134PA, OP249, AD827, RM4558, LM4562, LME49720HA, etc. to fine-tune your sound to perfection.

      • What you Get: ZA3 Power Amplifier x1, Power Adapter x1 (The plug of the power adapter will match the country of your delivery address), User Manual x1, our worry-free 24-month warranty, and friendly customer service.
      Specifications
      • Chip Set: Texas Instruments TPA3255
      • Output Power:
        With 48V/5A PSU Stereo; 155Wx2 @4Ω; Mono: 235Wx1 @4Ω
        With 32V/5A PSU Stereo; 95Wx2 @4Ω; Mono: 110Wx1 @4Ω
      • Terminating Impedance: 2-8Ω
      • Input Mode: RCA, XLR, 1/4" TRS
      • Output Mode: Speaker Output (supports banana plug or bare wire connection), Active Subwoofer Output
      • Frequency Range: 20Hz - 20KHz(±0.1dB)
      • SINAD: 89dB
      • THD: ＜0.006%
      • SNR: ≥106dB
      • Dynamic Range: ≥106dB
      • Device Dimension: 15.49 x 18.39 x 5.08 cm; 1.78 Kilograms
      • DC Input Range: 24-48V
      • Power Supply: 32V/5A, 48V/5A
      What‘s in the box？
      • ZA3 Power Amplifier x 1
      • 32V/5A or 48V/5A Power Adapter x 1
      • User’s Manual x 1

      FAQs

      Please read our FAQs page to find out more.

      Stereo Mode

      Replacing the op amps for both left and right channels in stereo mode, regardless of RCA or XLR inputs, will notably enhance sound quality.
      Mono Mode: Only replacing the op amps for the right channel.

      XLR Input

      Using XLR input mode allows for further sound quality enhancement by replacing the op amps for the XLR channel.

      Subwoofer Channel

      If a subwoofer is connected, there's the option to replace the op amps responsible for the subwoofer channel.
      Note: Carefully align the notch/the number '1' on the chip's cover with the 'O1' mark on the PCB.

      Here is a tutorial video for your reference: https://youtu.be/VvYYwxAfBi4

      Recently viewed products

        Login

        Forgot your password?

        Don't have an account yet?
        Create account