Parasound - John Curl Series HALO JC3 Jr - Phono Preamplifier
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ℹ Product Information
The Halo JC3Jr phono preamplifier offers high-performance phono preamplification for vinyl enthusiasts. With its discrete Class A input stage, it ensures exceptional audio quality and accuracy. The dual-mono design further enhances channel separation and sonic performance. The balanced XLR and unbalanced RCA inputs provide flexibility in connecting turntables. The precision RIAA equalization guarantees precise playback of vinyl recordings. The phono preamplifier supports both MM and MC cartridges, catering to a wide range of vinyl enthusiasts. Experience high-performance phono preamplification with the Halo JC 3 Jr.
- Phono preamplifier
- Discrete Class A input stage
- Dual-mono design
- Balanced XLR and unbalanced RCA inputs
- Precision RIAA equalisation
- MM/MC cartridge compatibility
Features
- 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
- Aluminium 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: Net: 13 lbs. (5.9 Kg)
