Fosi Audio Stereo Power Amplifier: TPA3255 Class D HiFi Amp with 48V Power Supply for Passive Bookshelf Speakers












 
 


Fosi Audio ZA3 Stereo Power Amplifier TPA3255 Class D HiFi Audio Amp for Passive Bookshelf Speaker With XLR/RCA/Balanced Input
 
 
Highlight:
 
 
  • Dual-Mode Innovation: This new generation mini amplifier offers both stereo and mono modes adapts flexibly to your diverse needs allowing seamless mode switching. In stereo mode it delivers a robust output of up to 180W while in mono mode the power soars to a maximum of 235W. Pair two ZA3 units in mono configuration to create a powerful audio system significantly enhancing your listening experience.

  • Richer Connectivity: Debut amplifier with balanced input and trigger in the ZA3 features a balanced combo audio signal input connector supporting both XLR and 1/4" TRS plugs. This design minimizes interference and reduces noise floor. The 12V trigger-in connector enables synchronization with other devices streamlining the process of turning on/off without individual operations.

  • Audiophile-Grade Components: The ZA3 features the TPA3255 high-end Class-D amp chip and utilizes premium Japanese NCC ELNA and German WIMA capacitors and Japanese Sumida inductors for exceptional audio quality. With a SINAD rating of up to 89dB an SNR of up to 106dB and a low noise floor of only 150μV it delivers exceptional clarity and low distortion.

  • Advanced Heat Dissipation: Based on V3's groundbreaking heat dissipation design we upgraded ZA3's cooling system by featuring a larger chassis moving vents to the sides and adding dust covers to achieve better ventilation for a sustained and stable high power output.

  • Enhanced Scalable Fun: Personalize your audio experience with the op-amp rolling feature! The ZA3 stocks five swappable op-amps for left and right channel outputs balanced input and subwoofer output. Experiment with compatible DIP8 dual op-amps such as Sparkos SS3602 MUSES02 OPA2604 OPA2134PA OP249 AD827 RM4558 LM4562 LME49720HA etc. to fine-tune your sound to perfection.

 



Specifications:

  • Max Power Output:

                                         180Wx2 @4Ω Stereo(with 48v power supply)

                                         235W @4Ω Mono(with 48v power supply)

                                         95x2W @4Ω Stereo(with 32v power supply)

                                        110W @4Ω Mono(with 32v power supply)

  • SINAD: 89dB

  • SNR: ≥106dB

  • Terminating Impedance: 2-8Ω

  • THD: 0.006%

  • Power Amp Chip: TI TPA3255

  • Op-Amp: TI NE5532 x2

  • Power Supply: 32V/5A 48V/5A

  • Input Range: DC 24V-48V

  • Frequency Response Range: 20Hz-20kHz(±1.2dB)

 



"