Parasound A52Plus 5 Channel Power Amplifier

• 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)

SPECIFICATIONS

• Dimensions Width:
  17-1/4" (437 mm) Height without feet: 5-1/4" (133 mm) Height with feet: 5-7/8" (149 mm) Depth: 20" (508 mm) Depth with cables: 21-1/4" (540 mm)
• Net Weight: 55 lb. (25 kg)
• Power Output - All 5 Channels Driven: 
  180 watts x 5, 8 Ω 255 watts x 5, 4 Ω
• Power Output - 2 Channels Driven:
  225 watts x 2, 8 Ω 350 watts x 2, 4 Ω Power measurements parameters with 120VAC 0.05% THD, RMS continuous power, full audio band (20 Hz - 20 kHz)
• Current Capacity:
  45 amperes peak, per channel
• Input Impedance Unbalanced:
  47 kΩ Balanced: 94 kΩ, 47 kΩ per leg
• Input Sensitivity for 28.28 V Output into 8 Ω Unbalanced:
  1 V Balanced: 1 V per leg Total Gain: 29 dB