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Summary of Contents for Parasound JC 1 Amplifier
- Page 1 JC 1 Amplifier Owner’s Guide...
- Page 2 Here at Parasound, we design our products to perform at a higher level of flexibility and sonic performance than you may have expected. We encourage you to read this entire manual to learn all the features and capabilities of your new JC 1 Amplifier.
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Page 3: Table Of Contents
UNDERSTANDING THE INDICATORS ON THE JC 1 _________________________________________________________________________________ CONNECTING THE AC POWER CORD _________________________________________________________________________________ MAINTAINING YOUR JC 1 _________________________________________________________________________________ TROUBLESHOOTING GUIDE _________________________________________________________________________________ SERVICING YOUR JC 1 _________________________________________________________________________________ TECHNICALLY SPEAKING _________________________________________________________________________________ PARASOUND JC 1 DESIGN OVERVIEW _________________________________________________________________________________ PARASOUND JC 1 SPECIFICATIONS _________________________________________________________________________________... -
Page 4: Placement Guidelines For Your Jc
This measurement standard was developed by the EIA (Electronic Industries Association) so manufacturers of electronic components and equipment racks could build products in standardized heights that would fit in a uniform space. Please call your Parasound dealer or ParasoundTechnical Services if you need additional advice about rack mounting the JC 1. -
Page 5: Connecting A Stereo Preamplifier Or A Surround
CONNECTING A STEREO PREAMPLIFIER OR A SURROUND CONTROLLER TO THE BALANCED INPUTS ON YOUR JC 1 Balanced Input Jack Balanced connections will give you the best sound in most instances. If your preamplifier or surround controller has balanced XLR output jacks, we recommend that you use them. Refer to the Balanced and Unbalanced Lines in the about why we recommend using balanced lines. -
Page 6: Connecting A Stereo Preamplifier Or A Surround
CONNECTING A PREAMPLIFIER OR A SURROUND CONTROLLER TO THE UNBALANCED INPUT ON YOUR JC 1... -
Page 7: Connecting A Speaker To Your Jc
CONNECTING SPEAKERS TO YOUR JC 1 Speaker Terminals The two five-way binding post speaker terminals on the JC 1 are connected in parallel and accept most speaker wire terminations including single or dual banana plugs or 1/4” spade lugs. The openings in the terminals are too small to accommodate bare ends of the gauge speaker wire you should use. -
Page 8: Manual And Automatic Turn On-Off Options
MANUAL AND AUTOMATIC TURN ON-OFF OPTIONS The JC 1 can be turned on and off manually or automatically for your convenience. Using the Front Panel On-Off Button For manual operation, the JC 1 rear panel Connecting an Active Audio Source for Automatic Turn On-Off The JC 1 can be turned on and off with an audio how long the JC 1 delays its actual turn on after it’s been triggered. - Page 9 If you want to automatically turn on the JC 1 with an external DC voltage, select the DC trigger by moving the AutoTurn On switch on the rear panel left to its What you’ll need: A wire with a 2.5 mm sub-mini plug on each end (provided) A “control”...
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Page 10: Connecting The Jc 1 To Trigger Another Component
CONNECTING THE JC 1 TO TRIGGER ANOTHER COMPONENT Whenever the JC 1 is turned on either manually or automatically, it generates 12 Vdc at its 12 V Trigger Out jack so it can trigger additional JC 1 amplifiers or other components on and off. What You’ll Need: A second wire with a 2.5 mm sub-mini plug on each end (not provided) A component that can be triggered with an external +9 Vdc to +12 Vdc source. - Page 11 Bias Le On-Off (right) switch position, bias idle current is increased to perfectly match position. Lift Normal Ground San Franscisco, CA US Parasound Products. Inc. < < Select CAUTIO Qualified Service Personnel. Parts Inside, Refer Servicing To Remove Cover. No User-Serviceable...
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Page 12: Connecting The Ac Power Cord
Plug the female end of the AC cord to the AC receptacle on the rear of the JC 1. Plug the male end of the AC cord to an AC outlet or power strip. J C1 A m p li fie r Parasound Products. Inc. San Franscisco, CA USA Ground... -
Page 13: Maintaining Your Jc
MAINTAINING YOUR PARASOUND JC 1 Your Parasound JC 1 power amplifier requires no periodic maintenance and has no user- serviceable parts inside. To avoid the risk of electric shock, do not remove its top cover. The amplifier’s exterior can easily be cleaned with a soft cloth pre-moistened only with a few drops of water or glass cleaner. -
Page 14: Troubleshooting Guide
TROUBLESHOOTING GUIDE JC 1 will not turn off when audio signal is removed Hum and / or buzz through speakers „& DC . ¬ ¥‚* Í 1⁄2 3⁄4*„& DC . PROBABLE CAUSE REMEDY Power cord is disconnected Check polarity of DC source with a voltmeter Try connecting a 9 V battery to the Make sure Ground loop between preamplifier... -
Page 15: Servicing Your Jc 1
Procedure for Returning Your JC 1 to Parasound for Service If Parasound determines that you should send your JC 1 to Parasound, you will be given a Return Authorization (RA) number. This RA number must be clearly marked on the outer carton only. -
Page 16: Technically Speaking
However, Parasound amplifiers use robust circuitry that sounds superb regardless of interconnects and speaker wires.Therefore, we feel that choosing a brand of cable for Parasound amplifiers is largely a matter of personal taste. Signal Polarity The JC 1 does not invert polarity. Therefore, if you... - Page 17 Here are three tips to avoid ground loops: 1. Use a balanced input line with your Parasound JC 1. (See Balanced and Unbalanced Lines in this section). 2. When rack mounting, always use the included insulated “shoulder”...
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Page 18: Parasound Jc 1 Design Overview
PARASOUND JC 1 DESIGN OVERVIEW Designed by John Curl and CTC Builders Parasound has worked with legendary designer John Curl since 1989. John has been a legend among audiophiles and electronic engineers since the mid ‘70s. He pioneered measurements to correlate musical... - Page 19 PARASOUND JC 1 DESIGN OVERVIEW continued Class A/AB Operation Pure class A operation provides the purest sound. However, an amplifier operating entirely in class A operation would be enormous, highly inefficient, and generate far too much heat. Class AB combines some of the advantages of Class A with the efficiency of Class B operation.
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Page 20: Parasound Jc 1 Specifications
Standby: 25 watts Idle: 250 watts Full Power into 8 Net Weight 64 lb. (29.1 kg) Shipping Weight 78 lb. (35.5 kg) © Parasound Products, Inc., 2002. v 1.1 Ω ” (445 mm) -1/2 ” (194 mm) ” (485 mm) Ω:... - Page 22 Parasound Products, Inc. 950 Battery Street, San Francisco, CA 94111 www.parasound.com 415-397-7100 / Fax 415-397-0144...
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