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Parasound  Halo -A 23 Power Amp

FEATURES:
  • Circuitry designed by legendary John Curl
  • Lucasfilm Home THX Ultra2 certified
  • High bias Class A/AB operation
  • Balanced inputs with discrete circuits and XLR connectors
  • Direct Coupled - no capacitors or inductors in signal path
  • Complementary MOSFET driver stage and JFET input stage
  • 12 beta-matched 15 amp, 60 MHz bipolar output transistors
  • 1 kVA encapsulated toroid power transformer with independent secondary windings for each channel
  • 48,000 µF power supply filter capacitance
  • DC Servo and relay protection circuits
  • AC present, channel status, high temperature displays
  • Heavy-duty 24k gold-plated 5-way speaker binding posts
  • Gold-plated RCA input jacks; loop output jacks
  • Auto turn-on by 12v trigger or audio signal
  • Rear mounted gain controls, ground lift switch
  • 2u Chassis, carry handles, rack mountable with HRA2 (sold separately)
  • Parasound 5 year parts, 5 years labor warranty
    (For USA and Canada purchases only)

SPECS:

  •  Circuitry designed by legendary John Curl
  •  Lucasfilm Home THX Ultra2 certified
  •  High bias Class A/AB operation
  •  Balanced inputs with discrete circuits and XLR connectors
  •  Direct Coupled - no capacitors or inductors in signal path
  •  Complementary MOSFET driver stage and JFET input stage
  •  12 beta-matched 15 amp, 60 MHz bipolar output transistors
  •  1 kVA encapsulated toroid power transformer with independent
      secondary windings for each channel
  •  48,000 µF power supply filter capacitance
  •  DC Servo and relay protection circuits
  •  AC present, channel status, high temperature displays
  •  Heavy-duty 24k gold-plated 5-way speaker binding posts
  •  Gold-plated RCA input jacks; loop output jacks
  •  Auto turn-on by 12v trigger or audio signal
  •  Rear mounted gain controls, ground lift switch
  •  2u Chassis, carry handles, rack mountable with HRA2 (sold separately)
  •  Parasound 5 year parts, 5 years labor warranty
       (For USA and Canada purchases only)

Continuous power output:
125 watts RMS x 2, 20 Hz - 20 kHz, 8 O, both channels driven
225 watts RMS x 2, 20 Hz - 20 kHz, 4 O, both channels driven
400 watts RMS x 1, 20 Hz - 20 kHz, 8 O

Current capacity:
45 amperes peak per channel

Power bandwidth:
5 Hz - 100 kHz, +0/-3 dB at 1 watt

Total harmonic distortion:
< 0.06 % at full power

IM distortion: balanced 16 V rms
< 0.04 %

Slew rate:
> 130 V/µsecond

Dynamic headroom:
> 1.5 dB

Interchannel crosstalk:
> 80 dB at 1 kHz;
> 63 dB at 20 kHz

Input sensitivity:
1 V for 28.28 V, THX Reference Level

Input impedance:
33 k O

S/N ratio:
112 dB, input shorted, IHF A-weighted

Damping factor:
> 800 at 20 Hz

Voltage:
Switchable for 110V - 120V or 220V - 240V

Dimensions:
17-1/4" w x 4-1/8" h x 13-1/4" d, 3-5/8 " h without feet

Net weight:
28 lb.




 


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