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INTRODUCTION 
 

 

Thank You for Choosing Parasound 

Your new Parasound Halo JC 3 Jr. Phono Preamplifier is the pinnacle of analog audio technology 
and value engineering.  Its “ DNA” and circuit topologies are inspired by our acclaimed JC 3 and 
JC 3+. The JC 3 Jr. advances legendary designer John Curl’s reputation for designing legendary 
phono preamplifiers dating back to the 1970s.   
 
We are proud to offer you this exceptionally versatile audio component, confident that it will bring 
you many years of enjoyment and dependability. 
 
We appreciate you taking the time to read these instructions and thank you for selecting 
Parasound. For updates and corrections to this manual, we invite you to check our web site,

 

www.parasound.com. 

Enjoy. 

 

The Parasound Staff 
 
Keeping Records for Future Reference 

Record the serial number located on the back panel or bottom of your JC 3 Jr. in the space below. 
Also note your Parasound Dealer’s name and telephone number. Your purchase receipt/bill of 
sale is required to determine if your JC 3 Jr. is eligible for Parasound warranty service. We 
recommend that you make an extra copy of your original purchase receipt/bill of sale and store it 
inside the JC 3 Jr.’s carton. 
 
Five Digit Serial Number (located on the bottom) __________ 
 
Date of Purchase: ____________ 
 
Name of Parasound dealer where you purchased it ___________________ 
 
Parasound Dealer Phone Number _______________________ 
 

 
 
Important Warranty information 

There is no Parasound warranty for this unit if it was not purchased from an Authorized 
Parasound Dealer.

 Investigate warranty coverage statements made by an 

unauthorized

 dealer 

with extreme caution, as you will need to depend entirely upon your dealer, and NOT upon 
Parasound. 
Unauthorized dealers lack the capability to make repairs or arrange for repairs of Parasound 
equipment.  A list of Authorized Parasound Dealers and detailed warranty information is available 
at 

www.parasound.com 

or you can call 

(415)

 

-

 

397

 

-

 

7100 

between 8:30

 

am and

 

4 pm Pacific 

time. 
A missing or altered serial number could indicate that this unit was re-sold by an unauthorized 
dealer or is stolen merchandise. If this unit is missing its serial number or the serial number has 
been altered, you should return it to your dealer immediately for a full refund. 

 
 
 
 
 
 

Содержание JC 3 Jr.

Страница 1: ...JC 3 Jr Phono Preamplifier OWNER S GUIDE...

Страница 2: ...2...

Страница 3: ...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...

Страница 4: ...Voltage Selection 6 Audio Input Connections 7 Cartridge Impedance Selection 8 Gain Control 8 Audio Output Connections 9 12V trigger and Other Connections 9 Front Panel Operation 10 Frequently Asked Qu...

Страница 5: ...r Parasound warranty service We recommend that you make an extra copy of your original purchase receipt bill of sale and store it inside the JC 3 Jr s carton Five Digit Serial Number located on the bo...

Страница 6: ...output cables that are long enough to leave some slack that will enable you to pull the JC 3 Jr out of a cabinet to check or to change connections without inadvertently disconnecting cables If you re...

Страница 7: ...230V markings on the carton The 115V setting is correct for North America where the JC 3 Jr can operate safely with AC line voltages between 110V 120V Most other countries will require the switch to b...

Страница 8: ...s located next to the right channel XLR balanced output Note In some cases eliminating hum might require connecting your turntable ground wire directly to your line stage preamp instead of to the JC 3...

Страница 9: ...e Control 50 550 The JC 3 Jr s Impedance adjust knob enables you to fine tune the input impedance for MC cartridges over a range of 50 ohms to 550 ohms Cartridge manufacturers recommend what they cons...

Страница 10: ...r preamplifier The 12V input is a 3 5mm 1 8 mono mini jack To trigger the JC 3 Jr on and off automatically insert the trigger wire plug into this jack and plug the other end into your preamplifier or...

Страница 11: ...erview John Curl s phono preamp design are legendary His skills for amplifying extremely low level signals gives you the listener the best possible opportunity to experience the full emotional content...

Страница 12: ...he most frequent reason for distortion is using an MM cartridge with the JC 3 Jr Gain switch set to 50 dB or 60 dB try 40 dB The second most frequent reason is using a high output MC cartridge with th...

Страница 13: ...d Dealer 3 You are not the original owner The Parasound warranty is not transferable 4 Unit s serial number was removed modified or defaced 5 Unit shows evidence of abuse and or misuse 6 Unit was modi...

Страница 14: ...ut 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 80dB at 1kHz Input I...

Страница 15: ...15...

Страница 16: ...16 Parasound Products Inc 2250 McKinnon Ave San Francisco CA 94124 415 397 7100 Fax 415 397 0144 www parasound com...

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