Parasound JC 1+ Mono Power Amplifier by John Curl (Sliver)

$13,350.00

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Description

Read the JC 1+ development story here

    • 400 → 450 Watts @ 8Ω
    • 800 → 850 Watts @ 4Ω
    • 1200 → 1300 Watts @ 2Ω
    • Filter capacitance: 132,000 → 198,000 uF
    • Transformer capacity: 1.9 → 2.1 kVA
    • Output transistors: 18 → 24 Sanken 60Mz devices
    • Peak current: 135 → 180 amps
    • Weight: 64 → 83 lbs net
    • Bybee Music Rails™ active high frequency noise filters
    • John Curl driver stage employs a new cascode circuit design
    • FR-408 input circuit board material improves HF signal integrity
    • Gain switch to select 29 dB or 23 dB of gain
    • R-core power transformer for input stage
    • Input circuit board is shielded
    • Double thickness copper on output/power supply circuit boards
    • Gold-plated internal audio signal path connectors
    • Custom CHK Infinium speaker binding posts
    • Looping Neutrik XLR output for easier bi-amping
    • Front panel power indicator LED
    • Updated auto turn on circuits with 3.5mm 12V trigger jacks

All Features:

  • Circuitry designed by legendary John Curl
  • Ultra-high bias Class A/AB operation
  • 25 watts of pure Class A power
  • Stable with speaker impedance dips below 1Ω
  • Bybee Music Rails™ – active high frequency filters for input stage
  • New John Curl driver stage employs a cascode circuit for greater open loop bandwidth & superior linearity
  • Gain switch to select 29 dB or 23 dB gain for optimum compatibility with high gain preamps or extremely efficient speakers
  • R-core transformer for input stage suppresses noise on power line
  • 6 massive 33,000 uF Nichicon Gold Tune filter capacitors for output stage
  • 22,400 uF input stage power supply filter capacitors, independent of the main power supply
  • Dual CHK Infinium, custom 5-way speaker binding posts for easy bi-wiring
  • Neutrik locking XLR balanced input & loop output jacks
  • Vampire 24k gold-plated RCA input & loop output jacks
  • Direct-coupled signal path, no capacitors or inductors in the audio path
  • JFET input stage, MOSFET driver stage
  • 24 beta-matched 15 ampere, 230V, 60 MHz bipolar output transistors
  • 2.1 kVA shielded toroid power transformer with premium H18 grade core
  • Independent power supplies for input stage, driver stage & output stage
  • Full power is rated all the way down to 2Hz for unrestricted low-end bass
  • Harris hyper-fast soft-recovery bridge diode rectifiers
  • REL & Nichicon Muse capacitors
  • DC servo & relay protection circuits
  • AC turn-on inrush surge protection with relay bypass
  • Automatic turn-on by 12 V trigger or audio sensing
  • 4 rack space chassis with rear carry handles
  • Rack mount hardware is included
  • Available in silver or black

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