Parasound Halo JC3 Jr. Phono Preamplifier

Parasound Halo JC3 Jr. Phono Preamplifier

FEATURES:
 
    	
  • Circuitry designed by legendary John Curl
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  • Circuit board layout by Carl Thompson
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  • Cartridge options for 47k Ω MM and MC/MI
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  • Variable MC impedance adjustment of 50-550 ohms
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  • Gain select for 40 dB/50 dB/60 dB unbalanced (46 dB/56 dB/66 dB balanced)
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  • Balanced and unbalanced outputs
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  • Mono switch can improve sound of mono & older LPs
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  • Convenient auto turn-on by 12V trigger
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  • RIAA accurate to within 0.2 dB
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  • Incredible S/N up to 94 dB and THD less than 0.02%
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  • Vishay-Dale resistors in the audio path
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  • Aluminum shield separates power supply and audio circuits
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  • Shielded toroid power transformer
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  • High speed-soft recovery bridge rectifiers and common mode inductors
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  • Vampire brand 24k gold-plated RCA jacks
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  • Neutrik brand locking balanced XLR outputs connectors
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  • Compact 1U chassis (2.5" high with feet)
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  • Available in silver or black
 
 
SPECIFICATIONS:
 
    	
  • Frequency Response:  20-20Khz, +/- 0.2dB
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  • Total Harmonic Distortion:   < 0.02% at 1 kHz
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  • Signal to Noise Ratio, 40 dB Setting:   >85dB, input shorted, IHF A-weighted; >80dB, input shorted, unweighted
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  • Signal to Noise Ratio, 50 dB Setting:   >89dB, input shorted, IHF A-weighted; >84dB, input shorted unweighted
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  • Signal to Noise Ratio, 60 dB Setting:   >94dB, input shorted, IHF A-weighted; >91dB, input shorted, unweighted
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  • Inter-channel Crosstalk:   >80 dB at 1 kHz
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  • Input Impedance:   MM or MI: 47k Ω;   MC Variable: 50- 550 Ω
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  • Output Impedance:   Unbalanced: < 100 Ω;   Balanced: < 100 Ω per leg
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  • Input Capacitance:   150 pF
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  • 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
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  • 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
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  • Total Gain:   40 dB / 50 dB / 60 dB (unbalanced output);   46 dB / 56 dB / 66 dB (balanced output)
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  • XLR Pin Identification:   1 = Ground (Shield), 2 = Positive, 3 = Negative (Return)
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  • AC Power Requirement:   Standby: <1 watt;   Power On: 9 watts 115 VAC or 230 VAC 50 - 60 Hz
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  • Dimensions