Parasound HALO JC-1 MONOBLOCKS

WhatsBestForum.com member Dean Morgan purchased these amplifiers brand new from Galen Carol Audio on 9/21/18. Dean put only a few hundred hours on them. There are no scratches or blemishes on them.

JC1s have been Stereophile Class A
rated amps for several years. Over the years the John Curl-designed JC-1 has garnered more honors than any other amplifier. See www.parasound.com/jc1.php for reviews.

The serial numbers on the boxes
are #95 and #99. On the bottom of the amps the serial numbers are #04175 and #04186.

David Wilson of Wilson Audio used JC1s to drive Wilson Audio Thor subwoofers and then Master Subsonic subwoofers. I purchased these amps from Dean in anticipation of someday using them for this very Wilson Audio subwoofer purpose, but I will not be going in that direction after all.

The amps have remained completely safe in the original boxes since I received them from Dean.


Specifications Features Specs Reviews Support
Continuous power output, 20Hz - 20 kHz:
400 watts RMS x 1, 8 Ω
800 watts RMS x 1, 4 Ω
1200 watts RMS x 1, 2 Ω
Class A power output, 20Hz - 20 kHz:
25 watts, bias set to high, 8 Ω
10 watts, bias set to low, 8 Ω
Current capacity:
135 amperes peak
Power bandwidth:
2 Hz - 120 kHz, +0/-3 dB at 1 watt
Total harmonic distortion:
< 0.15 % at full power
IM distortion: balanced 16 V rms
< 0.03 %
Slew rate:
> 130 V/µsecond
Dynamic headroom:
> 1.8 dB
Input sensitivity:
1 V for 28.28 V, THX Reference Level
Input impedance:
100 k Ω
S/N ratio:
>120 dB, IHF A-weighted, bias set to high
>122 dB, IHF A-weighted, bias set to low
Damping factor:
> 1200 at 20 Hz
Power Requirement :
250 watts idle 1280 watts full power into 4 Ω
DC trigger output capacity :
+12 Vdc, 150 mA
Dimensions:
17-1/2" w x 7-5/8" h x 20" d, 7" h without feet
Net weight: 64 lb.

Thank you.    

Ron Resnick Co-owner -- WhatsBestForum.com Senior Contributing Reviewer -- Mono and Stereo