(Pre-Order) Parasound Halo JC 3+

Parasound Halo JC 3+ Features

• Designed by John Curl - creator of the legendary Vendetta Research phono preamp
• Inputs and outputs use Vampire brand 24k gold-plated RCA jacks
• Balanced outputs use Neutrik brand premium XLR jacks
• MM 47k ohm, MC 47k ohm or MC variable 50-550 Ohms
• RIAA accurate within 0.2 dB
• Exclusively Vishay-Dale resistors in the audio path
• Triple shielding; low-carbon mild steel partitions isolate the power supplies & AC wires
• Dual mono design; each audio channel is separately enclosed in its own extruded aluminum enclosure
• Separate high speed-soft recovery rectifiers, filter caps and voltage regulators for each channel
• Mono switch can improve sound of mono and older LPs
• Built-in AC line conditioner to prevent AC noise from polluting the circuits
• AC polarity reverse switch can reduce hum in many systems
• Non-magnetic aluminum rear panel for purest sound
• Turn On Options switch: manual or auto with 12v trigger input
• Premium detachable heavy gauge IEC AC cord
• 2u Chassis, rack mountable with HRA2 (sold separately)

How the JC 3+ improves on the original JC 3:

• Variable MC load adjust independent for each channel from 50-550 ohms with dual gang potentiometers specially made for Parasound by Vishay.
• Curl-Thompson tweaked circuits to further reduce the JC 3 silent background noise.
• 24k gold plated copper traces on phono module boards for utmost conductivity and most transparency/detail in the music.
• 47% larger low ESD power supply filter caps greater reserve for head-snapping dynamics.
• Ability to turn off illumination of the front panel P logo.
• Now Available in Silver or Black.

Technical Specification

• Frequency Response
  20 Hz - 20 kHz, +/- 0.2 dB
  
• Total Harmonic Distortion
  < 0.01% at 1 kHz
  
• Signal to Noise Ratio, MM
  > 87 dB, input shorted, IHF A-weighted
  > 78 dB, input shorted, unweighted
  
• Signal to Noise Ratio, MC
  > 87 dB, input shorted, IHF A-weighted
  > 67 dB, input shorted, unweighted
  
• Interchannel Crosstalk
  72 dB at 1 kHz
  
• Input Impedance
  MM: 47k Ω
  MC: 50 - 550 Ω variable, 47k Ω fixed
  
• Output Impedance
  Unbalanced: < 100 Ω
  Balanced: < 100 Ω per leg
  
• Input Capacitance
  150 pF
  
• Input Sensitivity at 1 kHz
  MM: 4mV for 1 V output
  MC: 600µV for 1 V output
  
• Total Gain
  MM: 48 dB
  MC: 64 dB
  
• XLR Pin Identification
  1 = Ground (Shield)
  2 = Positive
  3 = Negative (Return)
  
• AC Power Requirement
  Standby: 1 watt
  Power On: 12 watts
  115 or 230 VAC 50 - 60 Hz
  (Selected on Chassis Bottom)
  
• Dimensions
  Width: 17-1/4" (437mm)
  Depth: 13-3/4" (350mm)
  Height, with feet: 4-1/8" (105mm)
  Height, without feet: 3-1/2" (89mm)
  
• Weight
  Net: 19 lbs. (8.6 Kg)
  Shipping: 26 lbs. (11.8 Kg)
  

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