WiiM Vibelink High-Fidelity Stereo Power Amplifier 100W per Channel with PFFB

Features:

• 100W Per Channel Power Output: Robust Class-D amplification delivers 100W per channel at 8 ohms (200W at 4 ohms) to drive demanding speaker loads with authority.
• Post-Filter Feedback (PFFB) Technology: Advanced feedback circuit dynamically compensates for speaker load variations to eliminate distortion and maintain flat frequency response.
• Pure Analog Input Path: RCA line input bypasses ADC conversion completely, ensuring an uncompromised, direct analog signal path for turntables and preamps.
• Flagship ESS SABRE DAC: Features the high-performance ESS 9039Q2M DAC and six TI OPA1612 op-amps for low noise floor, high SNR (≥120dB), and ultra-low distortion (≤0.0005%).
• Bit-Perfect 192kHz/24-Bit Digital Playback: Optical and coaxial digital inputs accept high-resolution digital audio streams without resampling or signal degradation.
• Seamless WiiM Streamer Integration: Tailor-made to pair via digital or analog outputs with WiiM Mini, Pro, Pro Plus, and WiiM Ultra network streamers.
• Advanced Passive Thermal Management: Copper heat pipe, large aluminum heatsink, and precision PID thermal control ensure cool, completely silent operation without fans.
• 12V Trigger In & Auto Standby: Automatically powers on alongside connected preamps/streamers and enters energy-saving standby after inactivity.

Specifications:

• Amplification & Audio Performance:
  • Power Output: 100 Watts per channel at 8 Ohms / 200 Watts per channel at 4 Ohms
  • Amplifier Topology: Class-D with Post-Filter Feedback (PFFB) Technology
  • Amplifier Chipset: Texas Instruments TPA3255
  • Operational Amplifiers: 6x TI OPA1612 Op-Amps
  • Total Harmonic Distortion (THD+N): ≤0.0005%
  • Signal-to-Noise Ratio (SNR): ≥120 dB
  • Frequency Response: 20Hz – 20kHz (±0.5dB)
  • Supported Speaker Impedance Range: 3 to 8 Ohms
• Inputs, Outputs & Connectivity:
  • Analog Inputs: 1x RCA Stereo Line-In (Pure Analog Signal Path, No ADC)
  • Digital Inputs: 1x Optical (TOSLINK up to 192kHz/24-bit), 1x Coaxial (S/PDIF up to 192kHz/24-bit)
  • DAC Chipset: ESS 9039Q2M SABRE DAC
  • Speaker Terminals: Heavy-Duty Gold-Plated Binding Posts (Supports Banana Plugs or Bare Wire)
  • System Control: 1x 12V Trigger Input, Auto Standby Mode (30/60 min)
• Physical Dimensions, Power & Build:
  • Chassis Design: Precision Unibody Aluminum in Space Gray
  • Thermal Cooling: Passive Copper Heat Pipe & Aluminum Heatsink
  • Power Input: 100-240V AC, 50/60Hz (3A Max)
  • Dimensions (W x D x H): 7.9" x 8.4" x 2.6" (200 x 212.5 x 66 mm)
  • Net Weight: 4.5 lbs (2.05 kg)