Fosi Audio ZA3-48V Stereo/Mono Amplifier
Elevate your sound system with the Fosi Audio ZA3-48V, a high-performance stereo/mono amplifier designed for audiophiles seeking clarity, flexibility, and raw power. Powered by the Texas Instruments TPA3255 Class-D amplifier chip, this compact unit delivers exceptional audio fidelity whether used in stereo or mono configurations.
Key Features:
- Stereo & Mono Modes: Switch easily between stereo mode (155W x 2 @ 4Ω) and mono mode (235W x 1 @ 4Ω) depending on your setup needs.
- Balanced & Unbalanced Inputs: Accepts RCA (unbalanced) and XLR/¼” TRS (balanced) inputs for clean signal transmission and broad compatibility.
- Subwoofer Output with Low-Pass Filter: Dedicated 200Hz low-pass filter for seamless active subwoofer integration.
- Op-Amp Rolling Capability: Customize your sound signature by swapping the five DIP8 dual op-amps.
- Enhanced Cooling Design: Larger chassis and vented side panels with dust protection ensure stable performance during long sessions.
Specifications:
- Amplifier Chip: Texas Instruments TPA3255
-
Output Power with 48V/5A Supply:
- Stereo Mode: 155W x 2 @ 4Ω
- Mono Mode: 235W x 1 @ 4Ω
- Supported Impedance: 2Ω – 8Ω
- Inputs: RCA, XLR, ¼” TRS
- Outputs: Speaker terminals (banana plugs or bare wire), Active Subwoofer Out
- Frequency Response: 20Hz – 20kHz (±0.1dB)
- SNR: ≥106dB
- THD: <0.006%
- Dynamic Range: ≥106dB
Dimensions & Weight:
- Size: 6.1 x 7.2 x 2 inches
- Weight: Approximately 3.9 lb
Included in the Box:
- Fosi Audio ZA3 Amplifier
- 48V/5A Power Supply
- User Manual