JC 3+

  • 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
  • Superior R-core type power transformer
  • 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.
  • 82% larger R-core power transformer greater reserve for more low end impact.
  • Ability to turn off illumination of the front panel P logo.
  • Now Available in Silver or Black.

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 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)

Rack Mount Accessory
HRA 2 (may be purchased separately)

Home Theater HiFi (March 2015)
"I'm confident that how the JC 3+ breathes life and energy into music is exceptional. After you've experienced it, it seems impossible to take even the smallest of steps backward. It invigorates everything it touches. The extraordinary thing is that every time you listen, it feels special and reminds you that this strange alchemy called audio sometimes fulfills its promise."

Stereophile Review Highlights
"As with the JC 1 and 2, the construction quality of the Halo JC 3 is first-rate."
"Like the Vendetta, the JC 3 wasn't merely quiet, or even really, really quiet-it was silent."
"In every case the portrayal of the recorded acoustic was exquisitely detailed."
"It's superb at both frequency extremes, and tonally it's as close to neutral as any component I've heard."
"Highly recommended!"
- Brian Damkroger

"As with John Curlís legendary Vendetta phono preamplifier, the Halo JC 3 was superbly quiet."
"Looking back through this report, I seem to have used the word superb several times, and justifiably so: The Parasound Halo JC 3 measured performance is indeed superb."
- John Atkinson

The Absolute Sound Review Highlights
"The internal layout was gorgeous, if like me, you're into such things. It abounds with top-quality parts including Vishay-Dale resistors and REL capacitors in critical circuits."
"it's as quiet as a mouse in hospital slippers."
"And this is key to its bat-sensitive low level resolving power, its ability to peer deeply into the small recess of a musical moment"
"Dynamically thereís a riveting balance of extremes at play, from profound ambient silence to rollicking kick-butt energy."
"this is the kind of resolving power and specificity that make the JC 3 so addictive."
"In terms of real-world performance, the place where most of us actually live, the Parasound Halo JC 3 is the best phono preamp Iíve heard in my system."
"My highest recommendation."
- Neil Gader

Enjoy The Music Review

TONEAudio Review

New York Times

Home Entertainment

Home Toys

SlashGear

Twice

Soundscape.net

Enjoythemusic.com [12/9/10]

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