Fosi Audio ZA3 Balanced Stereo Amplifier

Description

The Fosi Audio ZA3 is a compact yet powerful integrated amplifier designed to cater to diverse audio needs with its dual-mode functionality, allowing seamless switching between stereo and mono configurations. In stereo mode, it delivers up to 180W per channel into 4Ω loads, while in mono mode, it provides a substantial 235W into 4Ω, making it adaptable for various speaker setups.

Key Features:

• Dual-Mode Flexibility: Easily switch between stereo and mono modes to suit different audio applications, providing versatility in system configurations.​

• High-Quality Amplification: Utilizes the Texas Instruments TPA3255 Class-D amplifier chip, known for its high efficiency and low distortion, ensuring clear and dynamic sound reproduction. ​

• Balanced and Unbalanced Inputs: Features both balanced XLR and unbalanced RCA inputs, accommodating various source devices and minimizing noise for a cleaner signal.​

• Op-Amp Rolling Capability: Supports op-amp rolling with compatible DIP8 dual op-amps, such as Sparkos SS3602, MUSES02, and OPA2134PA, allowing users to customize the sound signature to their preference.

• Advanced Heat Dissipation: Designed with a larger chassis and side ventilation with dust covers, the ZA3 effectively dissipates heat, ensuring stable performance during extended use.​

• 12V Trigger Sync Interface: Includes a 12V trigger input for seamless synchronization with other devices, enabling unified power management across your audio system.

Technical Specifications:

• Amplifier Chip: Texas Instruments TPA3255​

• Output Power:

  • Stereo Mode: 180W x 2 @ 4Ω
  • Mono Mode: 235W x 1 @ 4Ω​

• Frequency Response: 20Hz – 20kHz (±0.1dB)​

• Signal-to-Noise Ratio (SNR): ≥106dB​

• Total Harmonic Distortion (THD): <0.006%​

• Inputs: RCA, XLR, 1/4″ TRS​

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

• Dimensions: 15.49 x 18.39 x 5.08 cm​

• Weight: 1.78 kg​

The Fosi Audio ZA3’s combination of flexibility, high-quality components, and user-centric features makes it an excellent choice for those seeking a customizable and reliable amplifier for their audio systems.