FS: Parasound Halo A23 2 channel amplifier
02-25-2005, 12:14 AM
#1
Bagged hybrid
Thread Starter
FS: Parasound Halo A23 2 channel amplifier
Parasound Halo A23 stereo amplifier. Light use for 1 yr. Retails for $850.
Asking $600 + shipping.
Specs
A 23 Features:
Circuitry designed by legendary John Curl
Lucasfilm Home THX Ultra 2 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
Gold-plated RCA input jacks, loop output jacks
Auto turn-on by 12v trigger or audio signal
Heavy-duty 24k gold-plated 5-way speaker binding posts
Rear mounted gain controls, ground lift switch
2u Chassis, carry handles, rack mounting adapter available
Parasound’s 10 years parts, 5 years labor warranty
A 23 Specs:
Continuous power output:
125 watts RMS x 2, 20 Hz - 20 kHz, 8W, both channels driven
200 watts RMS x 2, 20 Hz - 20 kHz, 4W, both channels driven
400 watts RMS x 1, 20 Hz - 20 kHz, 8W
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: < 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 kW
S/N ratio: > 112 dB, input shorted, IHF A-weighted
Damping factor: > 800 at 20 Hz
Voltage: Switchable for 110V – 120V or 220V – 240V operation
Dimensions: 17-1/4" w x 4-1/8" h x 13-1/4" d, 3-5/8" h without feet
Net weight: 28 lbs.
Asking $600 + shipping.
Specs
A 23 Features:
Circuitry designed by legendary John Curl
Lucasfilm Home THX Ultra 2 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
Gold-plated RCA input jacks, loop output jacks
Auto turn-on by 12v trigger or audio signal
Heavy-duty 24k gold-plated 5-way speaker binding posts
Rear mounted gain controls, ground lift switch
2u Chassis, carry handles, rack mounting adapter available
Parasound’s 10 years parts, 5 years labor warranty
A 23 Specs:
Continuous power output:
125 watts RMS x 2, 20 Hz - 20 kHz, 8W, both channels driven
200 watts RMS x 2, 20 Hz - 20 kHz, 4W, both channels driven
400 watts RMS x 1, 20 Hz - 20 kHz, 8W
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: < 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 kW
S/N ratio: > 112 dB, input shorted, IHF A-weighted
Damping factor: > 800 at 20 Hz
Voltage: Switchable for 110V – 120V or 220V – 240V operation
Dimensions: 17-1/4" w x 4-1/8" h x 13-1/4" d, 3-5/8" h without feet
Net weight: 28 lbs.
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