Parasound A23 Plus

$6,149.00

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Details

Specifications

FEATURES

• 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

• 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

• Current Capacity: 45 amps peak, per channel
• Slew Rate: > 130 volts per microsecond
• Frequency Response: 
- 5 Hz - 100 kHz, +0/-3 dB
- 20 Hz - 20 kHz, +0/-0.25 dB
• Total Harmonic Distortion (THD): 
< 0.06 % at full power
< 0.03 % at typical listening levels IM Distortion
< 0.04 % TIM
• Unmeasurable 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 Input
• Sensitivity: for 28.28 V Out (8 Ω Load)
- Unbalanced: 1 V
- Balanced: 1 V per leg
• S/N Ratio: 
> 112 dB, input shorted, IHF A-weighted
> 107 dB, input shorted, unweighted
• Damping Factor: > 800 at 20 Hz
• DC Trigger Requirements: +9 Vdc to +12 Vdc, 5 mA
• Audio Trigger Requirements: 2 mV - 10 mV XLR
• Pin Identification: 
1 = Ground (Shield)
2 = Positive
3 = Negative (Return)
• Dimensions: 
- Width: 437 mm
- Depth: 388 mm
- Depth, with cables 432 mm
- Height, with feet: 105 mm
- Height, without feet: 89 mm, 2U
• Net Weight: 12.2 kg 
• Shipping Weight: 14.4 kg 
• Power Requirements: 
- Standby: <1 Watt
- Idle (no music playing): 75 Watts
- Typical Listening levels: 125 Watts
- Maximum: 800 Watts