JC 3
Phono Preamplifier
OWNER’S GUIDE
Page 1: ...JC 3 Phono Preamplifier OWNER S GUIDE ...
Page 2: ...g This plug will only fit into a grounding power outlet If you are unable to insert the plug into the outlet contact your electrician to replace your obsolete outlet Do not defeat the safety purpose of the grounding plug 11 Power Cord Protection Power supply cords should be routed so that they are not likely to be walked on or pinched by items placed upon or against them 12 Lightning Unplug the un...
Page 3: ...lation Guidelines 5 AC Voltage Selection 6 Audio Input and Output Connections 7 Other Connections on your JC 3 8 Rear Panel Controls 9 Front Panel Operation 10 Frequently Asked Questions 11 If You Require Assistance or Warranty Repair 12 Specifications 13 ...
Page 4: ... sale and store it inside the JC 3 s carton Parasound JC 3 Phono Preamplifier Serial __________________________________________________ Parasound Dealer ________________________________________________________________ Parasound Dealer Phone Number __________________________________________________________________ Date of Purchase ________________________________________________________________ Imp...
Page 5: ...l cables as far as possible from any AC cords Where signal cables must cross AC cords they should do so only at a 90 right angle Ventilation Requirements Always position the JC 3 horizontally We recommend that you do not place the JC 3 above a power amplifier Do not install the JC 3 in an unventilated equipment cabinet or compartment Pockets of stagnant hot air can build up even in a cabinet with ...
Page 6: ...rkings on the carton The 115V setting is correct for North America where the JC 3 can operate safely with AC line voltages between 110 120v Most other countries will require the switch to be set to 230V With the 230V setting the JC 3 can operate safely with AC line voltages between 220V 240V Always turn off your JC 3 and disconnect its the AC cord before making or changing any input output or trig...
Page 7: ...oxit com to remove any oxidation on them The turntable s ground wire attaches to the JC 3 Ground terminal that is located between the two channel inputs and outputs Important Note Turntables and phono preamps are very sensitive to electromagnetic fields that can cause audible hum To minimize hum follow these guidelines Place your turntable as far as possible from power amplifiers or power line con...
Page 8: ...can try both the 100 Ω or 47k Ω settings to see which sounds best in your system The MC 47k Ω setting is also the recommended load for MI moving iron cartridges such as Grados Other Connections 12V In Jack The JC 3 12V input uses a mono 3 5mm sub mini jack To automatically trigger the JC 3 on and off insert the trigger wire plug into this jack and plug the other end into your preamplifier s 12V tr...
Page 9: ... 100 ohm load that is ideal for nearly all MC cartridges The MC 47k Ω setting provides the appropriate gain for MC cartridges with an alternative 47k ohm load You can try both the 100 Ω and 47k Ω settings to see which sounds best in your system The MC 47k Ω setting is also the recommended load for MI moving iron cartridges such as Grados Note The JC 3 load options are restricted by intent Designer...
Page 10: ...o circuits and non audio wiring Each channel has its own circuit board and each channel is fully enclosed in its own extruded aluminum vault This vault shields the sensitive circuits from the JC 3 s power supply and from external sources of noise The power transformer is an R core type which shares the advantages of a toroid transformer for minimizing radiated hum However it is far superior to a t...
Page 11: ...sure that the power amps and the JC 3 are plugged into the same AC outlet The sound is distorted and too loud Are you using an MM cartridge and the JC 3 input load switches are set to MC Change the settings to MM The sound is weak Are you using an MC cartridge and the JC 3 input load switches are set to MM Change the settings to MC 100 Ω or MC 47k Ω When should I use the AC Polarity Invert switch ...
Page 12: ...y Parasound Under the Following Conditions 1 Unit was sent without the Parasound assigned RA number marked on the carton 2 Unit was sent in an unsuitable shipping carton and is likely to have been damaged in transit 3 Unit has inadequate packing materials and is likely to have been damaged in transit 4 Unit was shipped collect for shipping charges We do not accept collect shipments 5 Unit was ship...
Page 13: ...per leg Input Sensitivity at 1 kHz MM 4mV in for 1 0V output MC 0 4mV for 1 0V output Total Gain MM 47dB MC 68dB Specifications and features subject to change or improvement without notice Copyright Parasound Product Inc 2010 Rev 1 0 www parasound com XLR Pin Identification 1 Ground Shield 2 Positive 3 Negative Return AC Power Requirement 115 or 230 VAC 50 60 Hz 12 watts Dimensions Width 17 1 4 43...
Page 14: ...14 Parasound Products Inc 2250 McKinnon Ave San Francisco CA 94124 415 397 7100 Fax 415 397 0144 www parasound com ...
