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Parasound

Parasound JC1+ Monoblock Amplifiers

Parasound JC1+ Monoblock Amplifiers

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Regular price $25,000.00
Regular price Sale price $25,000.00
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JC1+

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Description

Priced Per Pair. 

 

Parasound's Halo JC1+ Monoblock amplifier is based on John Curl's legendary circuit design. The A21+ refines Parasound’s most celebrated power amp for today’s systems—blending raw performance with elegant simplicity. Balanced XLR and RCA inputs, 2 Ω stability, and flexible bridging make it an ideal match for both stereo and home theater setups. This amplifier delivers commanding power with effortless musicality. At 300 W per channel into 8 Ω (500 W into 4 Ω), and up to 1,000 W bridged, it drives any loudspeaker with authority while keeping the sound spacious, controlled, and fatigue-free.

Features & Specifications:

  • Changes from the JC 1 to JC 1+

      • 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

     

  • Specifications:

    Power Output
    450 x1 watts @ 8 Ω
    850 x1 watts @ 4 Ω
    1300 x1 watts @ 2 Ω Power measurements are with 120 VAC:
    0.15% THD, RMS continuous power,
    full audio band (20 Hz – 20 kHz) Class A Power Output
    25 Watts, bias switch set to high
    10 Watts, bias switch set to low Current Capacity
    180 amps, peak Slew Rate > 130 volts per microsecond Frequency Response
    2 Hz – 120 kHz, +0/-2 dB
    20 Hz – 20 kHz, +0/-0.25 dB Total Harmonic Distortion (THD)
    < 0.15 % at full power
    < 0.02 % at typical listening levels IM Distortion
    < 0.03 % TIM
    Unmeasurable Damping Factor
    > 1200 at 20 Hz Input Impedance
    Unbalanced: 50 kΩ
    Balanced: 100 kΩ, (50 kΩ per leg) S/N Ratio, inputs shorted
    >122 dB, IHF A-weighted, bias set to Low
    >120 dB, IHF A-weighted, bias set to High
    >113 dB, Unweighted, bias set to Low
    >111 dB, Unweighted, bias set to High Total Gain
    29 dB (Gain switch set to normal)
    23 dB (Gain switch set to low) Input Sensitivity for 28.28 V Output into 8 Ω
    Unbalanced: 1 V
    Balanced: 1 V per leg
    (Gain switch set to normal) DC Trigger Requirements
    +9 Vdc to +12 Vdc, 5 mA Audio Trigger Requirement
    2.5 mV – 10 mV XLR Pin Identification
    1 = Ground (Shield)
    2 = Positive
    3 = Negative (Return) Dimensions
    Height without feet: 7-1/8″ (181 mm)
    Height with feet: 7-3/4″ (197 mm)
    Depth: 20″ (508 mm)
    Depth with cables: 21-1/2″ (546 mm) Shipping Carton Dimensions
    Width: 29-1/2″ (750 mm)
    Depth: 27-1/2″ (700 mm)
    Height: 15-3/4″ (400 mm) Net Weight
    83 lb. (37.6 kg) Shipping Weight
    107 lb. (48.5 kg) Power Requirement
    Standby: <1 Watt
    Idle (bias set to low): 145 Watts
    Idle (bias set to high): 275 Watts
    Typical Listening levels: 400 Watts
    Maximum: 1500 Watts