Parasound Halo A52+ Stereo Power Amplifier by John Curl

  • $4,250.00


  • 180 watts RMS x 5 @ 8 Ω
  • 255 watts RMS x 5 @ 4 Ω
  • 225 watts RMS x 2 @ 8 Ω
  • 350 watts RMS x 2 @ 4 Ω
  • Class A/AB circuitry designed by legendary John Curl
  • Direct coupled - no capacitors or inductors in audio path ensures the cleanest signal
  • Balanced XLR inputs with discrete circuits
  • Full power is rated all the way down to 5Hz for unrestricted low-end bass
  • Custom 1.5 kVA encapsulated toroid power transformer with independent secondary windings for each channel
  • Hand-matched JFETs for input stage
  • Hand-matched MOSFETs for driver stage
  • Beta-matched 15 amp, 60 MHz bipolar output transistors (3 pairs per channel)
  • 100,000 µF power supply filter capacitance
  • DC Servo and relay protection circuits
  • Auto turn on by audio signal or 12V trigger
  • Heavy-duty 24k gold-plated, 5-way speaker terminals
  • 3U chassis with updated cosmetics, rack mountable with HRA3 (sold separately)