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Parasound Halo JC3 Jr. Phono Preamplifier

Rs. 192,000

PARASOUND HALO JC3 Jr.

  • Circuitry designed by legendary John Curl
  • Circuit board layout by Carl Thompson
  • Cartridge options for 47k Ω MM and MC/MI
  • Variable MC impedance adjustment of 50-550 ohms
  • Gain select for 40 dB/50 dB/60 dB unbalanced (46 dB/56 dB/66 dB balanced)
  • Balanced and unbalanced outputs
  • Mono switch can improve sound of mono & older LPs
  • Convenient auto turn-on by 12V trigger
  • RIAA accurate to within 0.2 dB
  • Incredible S/N up to 94 dB and THD less than 0.02%
  • Vishay-Dale resistors in the audio path
  • Aluminum shield separates power supply and audio circuits
  • Shielded toroid power transformer
  • High speed-soft recovery bridge rectifiers and common mode inductors
  • Vampire brand 24k gold-plated RCA jacks
  • Neutrik brand locking balanced XLR outputs connectors
  • Compact 1U chassis (2.5" high with feet)

SPECIFICATIONS

Frequency Response

20-20Khz, +/- 0.2dB

Total Harmonic Distortion

< 0.02% at 1 kHz

Signal to Noise Ratio, 40 dB Setting

  • >85dB, input shorted, IHF A-weighted
  • >80dB, input shorted, unweighted

Signal to Noise Ratio, 50 dB Setting

  • >89dB, input shorted, IHF A-weighted
  • >84dB, input shorted unweighted

Signal to Noise Ratio, 60 dB Setting

  • > 94dB, input shorted, IHF A-weighted
  • > 91dB, input shorted, unweighted

Inter-channel Crosstalk

>80 dB at 1 kHz

Input Impedance

  • MM or MI: 47k Ω
  • MC Variable: 50- 550 Ω

Output Impedance

  • Unbalanced: < 100 Ω
  • Balanced: < 100 Ω per leg

Input Capacitance

150 pF

Input Sensitivity at 1 kHz, 4mV Input

  • 40 dB: 4 mV for 450mV output
  • 50 dB: 4 mV for 1.4 Volts output
  • 60 dB: 4 mV for 4.25 Volts output

Input Sensitivity at 1 kHz, 1V Output

  • 40 dB: 9 mV for 1.0 Volt output
  • 50 dB: 3 mV for 1.0 Volt output
  • 60 dB: 0.9 mV for 1.0 Volt output

Total Gain

  • 40 dB / 50 dB / 60 dB (unbalanced output)
  • 46 dB / 56 dB / 66 dB (balanced output)

XLR Pin Identification

  • 1 = Ground (Shield)
  • 2 = Positive
  • 3 = Negative (Return)

AC Power Requirement

  • Standby: <1 watt
  • Power On: 9 watts
  • 115 VAC or 230 VAC 50 - 60 Hz

Dimensions

  • Width: 17-1/4” (437mm)
  • Depth: 14-3/4” (375mm)

Depth with cables: 17” (432mm)

  • Height: 2-1/2” (63.5mm)
  • Height, without feet: 1-3/4” (45mm)

Weight

8.6Kg

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