Parasound A23 Plus 2 Channel Power Amplifier

• 160 watts x 2 @ 8 Ω RMS, both channels driven
• 240 watts x 2 @ 4 Ω RMS, both channels driven
• 500 watts x 1 @ 8 Ω, in bridged mode
• Circuitry designed by legendary John Curl
• High bias Class A/AB operation
• 45 amperes peak current per channel
• Stable with speaker impedance dips below 2 Ω
• Balanced inputs with discrete circuits
• Heavy-duty 24k gold-plated 5-way speaker binding posts
• Gold-plated RCA input & loop output jacks
• Direct-coupled signal path, no capacitors or inductors
• DC Servo and relay protection circuits
• AC turn-on inrush surge protection with relay bypass
• JFET input stage, MOSFET driver stage
• 12 beta-matched 15 ampere, 60 MHz bipolar output transistors
• 1.1 kVA shielded toroid transformer w/ independent windings for each channel
• Independent power supplies for input stage, driver stage and output stage
• 54,400 µF filter capacitors for output stages
• Full power is rated all the way down to 5Hz for unrestricted low-end bass
• Harris hyper-fast soft-recovery bridge diode rectifiers
• Automatic turn-on by 12 V trigger or audio sensing
• 2 rack space chassis with rear carry handles
• Rack mount hardware available separately
• Available in silver or black

SPECIFICATIONS

• Dimensions Width: 17-1/4" (437 mm) Depth: 15"-1/4" (388 mm) Depth, with cables 17" (432 mm) Height, with feet: 4-1/8" (105 mm) Height, without feet: 3-1/2" (89 mm), 2U
• Net Weight: 27 lb. (12.2 kg)
• Power Output – Stereo Mode: (0.06% THD) 160 watts x 2, 8 Ω both channels driven 240 watts x 2, 4 Ω both channels driven
• Power Output – Stereo Mode: (0.9% THD) 210 watts x 2, 8 Ω both channels driven 300 watts x 2, 4 Ω both channels driven
• Power Output – Bridged Mode (0.06% THD): 500 watts x 1, 8 Ω Bridged 4 Ω operation is not recommended
• Power Output – Bridged Mode (0.9% THD): 600 watts x 1, 8 Ω Bridged 4 Ω operation is not recommended
• Total Harmonic Distortion (THD): < 0.06 % at full power < 0.03 % at typical listening levels
• IM Distortion: < 0.04 %
• Inter-channel Crosstalk: > 85 dB at 1 kHz > 70 dB at 20 kHz
• Input Impedance Unbalanced: 33 kΩ Balanced: 66 kΩ,(33 kΩ per leg)
• Total Gain: 29 dB