Fosi Audio - ZA3 48V Stereo Amplifier - Black

The Fosi Audio ZA3 is a high-performance balanced Class-D amplifier designed for desktop and home HiFi systems. Built around the Texas Instruments TPA3255 amplifier chip, the ZA3 delivers powerful, clean sound with low distortion and high efficiency. It supports both stereo and mono modes, offering up to 180W output in stereo mode and up to 235W in mono mode when paired with a 48V power supply. The ZA3 features balanced XLR/TRS and RCA inputs, making it compatible with a wide range of audio sources, while the dedicated subwoofer output allows easy integration into 2.1-channel systems. Premium audiophile-grade components, including Japanese NCC and ELNA capacitors, German WIMA capacitors, and Sumida inductors, help achieve detailed, dynamic sound with an SNR of up to 106dB and ultra-low distortion.

• Dual-Mode Innovation
  The ZA3 supports both stereo and mono modes for flexible system setups. It delivers up to 155W in stereo mode and up to 235W in mono mode. Pair two ZA3 units in mono configuration for even greater power and an enhanced listening experience.

• Richer Connectivity
  The ZA3 features balanced XLR/TRS inputs for reduced noise and interference, delivering cleaner audio performance. A built-in 12V trigger input allows seamless power synchronization with compatible devices.

• Audiophile-Grade Components
  Powered by the high-end TPA3255 Class-D amplifier chip and premium components from NCC, ELNA, WIMA, and Sumida, it delivers rich, detailed sound with exceptional clarity. With up to 89dB SINAD, 106dB SNR, and an ultra-low 150μV noise floor, distortion and background noise are kept to a minimum.

• Enhanced Scalable Fun
  Customize your sound with five replaceable DIP8 op-amps for the left/right channels, balanced input, and subwoofer output. Compatible with popular op-amps such as Sparkos SS3602, MUSES02, OPA2134PA, LM4562, and more for personalized audio tuning.