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  • Fosi Audio ZA3 Balanced Stereo Amplifier

    Variant

    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.

    Flawless XLR Balanced Input Support

    Delivers pure sound, initiating a high-definition auditory adventure with unmatched clarity.

    PBTL Mono Mode Support

    More power output to elevate your stereo HiFi system to new heights.


    Home Audio System
    XLR Input
    Monoblock

    TI TPA3255 Amp Chip Integrated​

    Enabling superior sound and ultra-low distortion across the audio band with Class-D efficiency.



    Advanced Heat Dissipation Design

    Enhanced cooling with larger chassis, whole-body heatsink, and side ventilation with dust covers.

    Swappable Op-Amps

    Compatible with DIP8 dual op-amps. Roll them to get your preferred sound signature.

    Separated Digital & Analog Modules

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





    Specifications
    • Channel: 2.0
    • Amplifier Chip: Texas Instruments TPA3255
    • SINAD: 89dB
    • SNR: ≥106dB
    • Dynamic Range: ≥106dB
    • THD: <0.006%
    • Speaker Impedance Compatibility: 2-8Ω
    • Rated Power Output:
    • With 48V/5A PSU
    • Stereo: 180Wx2 @4Ω
    • Mono: 235Wx1 @4Ω
    • With 32V/5A PSU
    • Stereo: 95Wx2 @4Ω
    • Mono: 110Wx1 @4Ω
    • Frequency Response: 20Hz - 20KHz(±0.1dB)
    • Input Voltage Range: DC 24-48V