Parasound JC3jr Phono Preamplifier *DEMO*
Parasound JC3jr Phono Preamplifier *DEMO*
***Last one demo Model in black!
The Parasound JC3jr will get you a good portion of the way to the JC3+ at less than half the price. There is enough adjustability on this unit to handle almost any cartridge available so you can enjoy hearing your MM cartridge today to its full potential and upgrade to MC whenever you feel the need. This unit will be much quieter and more dynamic than the usual suspects in the $500-$1000 range. Designed by the legendary John Curl who is particularly noted with his work with Phono Preamps.
If you’re looking to elevate your vinyl game this could be the ticket, you can’t go wrong at this price!!!
JC3jr Specifications
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)
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)