Fosi ZA3 balanced stereo amplifier (2-channel/mono) with 48V PSU

Fosi Audio ★ 3.9/5 · ItemOracle Score Mid-Range

$150 USD
Price subject to change
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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

Compact dual-mode amp delivering stereo up to 180W or mono up to 235W. Noted for crisp clarity and neutral sound; customers praise its sound quality and power reserve

Highlights

  • stereo up to 180W
  • mono up to 235W
  • compact two-channel design

Pros

  • dual-mode operation (stereo/mono)
  • high power output in both modes
  • compact, lightweight design
  • crisp clarity and imaging
  • great value for the price

Cons

  • no integrated wireless features
  • limited user-provided details on thermal behavior
  • requires external power supply

Best For

  • desktop audio setup
  • home theater system
  • bookshelf speakers amplification
  • mono bass/subwoofer enhancement
  • two-unit mono stereo pairing

Features

  • Dual-mode operation: stereo for 180W and mono up to 235W output
  • Pair two ZA3 units in mono configuration for increased system capability
  • Balanced input with XLR and 1/4" TRS compatibility reduces noise
  • 12V trigger-in connects with other devices for coordinated power on/off
  • Compact mini amplifier designed for desktop and home audio setups

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