ParasoundHalo JC-1Parasound Halo JC-1 Monoblock amplifiers in BlackUp for sale is a pair of the top-of-the-Line JC-1 Monoblock amplifiers from Parasound, in factory Black finish. Widely reviewed and praised by the audio press, still listed as a "Class A" produ...4350.00

Parasound Halo JC-1 Monoblock amplifiers in Black [Expired]

no longer for sale

Up for sale is a pair of the top-of-the-Line JC-1 Monoblock amplifiers from Parasound, in factory Black finish. Widely reviewed and praised by the audio press, still listed as a "Class A" product in Stereophile, even a cursory search on Google will show how well thought of this amplifier is in today's market. With over 400 watts of power on tap, and capable of running in 25 watts of class-A power (switch selectable), these amplifiers are in that rare class of super amp that can authoritatively power even difficult loads yet still have the agility to sound delicate and refined when asked.The only thing I wasn't totally satisfied with were their speaker wire binding posts: I use Nordost cables with banana connections, and the stock binding posts are a bit shallow. So, I modified one of the two pairs of supplied posts by substituting a pair of WBT binding posts, which are excellent (see included pictures). I find the WBTs to be a superior connection, but it's up to you-as both the original and WBT posts are wired in parallel, use either set as you wish. Or, as it's a simple mechanical substitution, I am including the extra set of original posts if you want to switch back for any reason. I wouldn't!
The amplifiers are in mint condition and are a year and a half old, in black. I am the original owner, and they have only been used in a dedicated, smoke-and-pet free room. I'm totally satisfied with the JC-1s, selling solely to downsize and because I'm one of those nutty audiophiles! I am a long-time Audiogoner, going back to the original paper newsletter form, and a verified paypal user. At the asking price, paypal/cc fees and shipping will be included (ground, lower 48 USA only). Lowball offers will be ignored. Original boxes and manual will be supplied, and shipping will be by FedEx Ground. General information:

  • Premier monaural amplifier
  • Circuitry designed by legendary John Curl and CTC Builder
  • Ultra-high bias Class A/AB operation
  • Exclusive two position bias level adjustment
  • Balanced inputs with discrete circuits and XLR connectors
  • Vampire Direct gold-plated OFC RCA input
  • Dual heavy-duty 24k gold-plated 5-way speaker binding posts
  • Direct Coupled - no capacitors or inductors in signal path
  • Complementary MOSFET driver stage and JFET input stage
  • 18 beta-matched 15 amp, 60 MHz bipolar output transistors
  • 1.9 kVA encapsulated toroid power transformer
  • Independent power supplies for input, driver and output stages
  • 18,000 μF filters for driver stage
  • 132,000 µF Nichicon Gold Tune filters for output stage
  • DC Servo and relay protection circuits
  • REL and Nichicon Muse capacitors
  • Harris hyper-fast soft recovery diodes for all bridge rectifiers
  • Auto turn-on by 12v trigger or audio signal trigger
  • Ground lift switch , adjustable turn-on delay
  • Premium detachable AWG 12 power cord with silver solder
  • THX Ultra2 certified
  • 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

    17-1/4" w x 7-5/8" h x 20 " d, 7 " h without feet

    Net weight: 64 lb.

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Last 12 months

Member since February 2010

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