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Parasound JC 1 Amplifier - page 1
JC 1 Amplifier Owner’s Guide ...
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Parasound JC 1 Amplifier - page 2
1 T H A N K Y O U ! Congratulations and Thank Y ou for Choosing Parasound Y our new Parasound Halo Series JC 1 mono bloc k power amplier represents the latest advancements in amplier tec hnology . The JC 1 was designed by CTC builders and it uses higher quality parts and ac hieves higher performance than any amplier we ’ ve made since P ...
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Parasound JC 1 Amplifier - page 3
PLACEMENT GUIDELINES FOR YOUR JC 1 _________________________________________________________________________________ CONNECTING A STEREO PREAMPLIFIER OR A SURROUND CONTROLLER TO THE BALANCED INPUT ON YOUR JC 1 _________________________________________________________________________________ CONNECTING A STEREO PREAMPLIFIER OR A SURROUND CONTROLLER ...
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Parasound JC 1 Amplifier - page 4
PLACEMENT GUIDELINES FOR YOUR JC 1 1 Power ampliers are usually heavier and generate more heat than other components. T o avoid damage to the JC 1 or other equipment and to reduce risk of re, you must follow these guidelines: • Place the JC 1 on a separate shelf that will adequately suppor t its weight. • K eep it away from heat sources s ...
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Parasound JC 1 Amplifier - page 5
Balanced Input Jack Balanced connections will gi ve you the best sound in most instances. If your preamplier or surround controller has balanced XLR output jac ks, we recommend that you use them. Refer to the Balanced and Unbalanced Lines in the T ec hnically Speaking section for additional information about why we recommend using balanced lines ...
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Parasound JC 1 Amplifier - page 6
CONNECTING A PREAMPLIFIER OR A SURROUND CONTROLLER TO THE UNBALANCED INPUT ON YOUR JC 1 3 1 2 ...
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Parasound JC 1 Amplifier - page 7
YOU SHOULD KNOW Correct Speaker Polarity is Important P olarity refer s to the + and - connections. Speaker wires are coded with printing or a ridge on the insulation on one of the leads so you know whic h lead w as connected to the + and - terminals at the other end. This coding will help you keep the + and - polarity consistent for all c hannels. ...
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Parasound JC 1 Amplifier - page 8
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 Auto T urn On switc h must be in its Manual ( middle) position. Connecting an Active Audio Source for Automatic T urn On-Off The JC 1 can be turned on and of f with an audio signal , or by a ...
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Parasound JC 1 Amplifier - page 9
If you want to automatically turn on the JC 1 with an external DC voltage, select the DC trigger by moving the Auto T urn On switc h on the rear panel left to its 12 V olt T rigger position. What you’ll need: A wire with a 2.5 mm sub-mini plug on eac h end (pro vided) A “control” component with +9Vdc to +1 2 Vdc trigger voltage Before Connect ...
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Parasound JC 1 Amplifier - page 10
Whenever the JC 1 is turned on either manually or automatically, it generates 12 Vdc at its 12 V T rigger Out jack so it can trigger additional JC 1 ampliers or other components on and off. What Y ou’ll Need: A second wire with a 2.5 mm sub-mini plug on eac h end (not pro vided) A component that can be triggered with an external +9 Vdc to +12 ...
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Parasound JC 1 Amplifier - page 11
UNDERSTANDING THE INDICATORS AND CONTROLS ON THE JC 1 8 A AC Present Indication When the JC 1 is plugged into a live A C outlet, a soft blue halo glows behind its On-Off but ton and its red “P” Badge glows faintly . These indicate that the JC 1 is plugged into a live A C outlet, even when it is turned off . On and Off Indications for Both Manua ...
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Parasound JC 1 Amplifier - page 12
CONNECTING THE AC POWER CORD 9 1 2 1 2 JC1 Amplifier Parasound Products. Inc. San Franscisco , C A US A Ground Normal Lift Fuse T15A/250V -115V Ar ea T8A/250V-230V Area Power Consum ption: 1200W AC 115V 60Hz AC 230V 50Hz AC Power Connections W e recommend that you plug your JC 1 into the same A C wall outlet or power strip that powers your other au ...
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Parasound JC 1 Amplifier - page 13
MAINTAINING YOUR PARASOUND JC 1 1 0 Notes: Y our Parasound JC 1 power amplier requires no periodic maintenance and has no user - serviceable parts inside. T o avoid the risk of electric shoc k, do not remove its top cover . The amplier ’ s exterior can easily be cleaned with a sof t cloth pre-moistened only with a few drops of water or glas ...
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Parasound JC 1 Amplifier - page 14
TROUBLESHOOTING GUIDE 1 1 JC 1 will not turn of f when audio signal is remov ed PROBABLE CA USE Power cord is disconnected REMED Y Hum and / or buzz through speak ers Ground loop between preamplifier and JC 1 or at the equipment rack Move the Ground Lift switch to its Lift position Install nylon shoulder washers on both sides of the panels of all e ...
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Parasound JC 1 Amplifier - page 15
SERVICING YOUR JC 1 12 If All Else Fails-Call Us fo Help Call your P arasound dealer or P arasound’ s T ec hnical S ervice Department toll free at 1 -866-770-TECH (8324) between 8am and 4pm P acic T ime. W e can often solve the problem with simple diagnostic tests you can perform your self . If we determine that your JC 1 will need further ins ...
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Parasound JC 1 Amplifier - page 16
TECHNICALLY SPEAKING 13 Audio T rigger Sensitivity Adjustment The Auto T urn On Audio Sensitivity Control sets the threshold of the audio trigger signal. Y ou can adjust this level from a maximum sensiti vity of 50 mV (fully countercloc kwise) to a minimum sensiti vity of of 250 mV (fully cloc kwise). If you set this control to 50 mV , the JC 1 mig ...
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Parasound JC 1 Amplifier - page 17
TECHNICALLY SPEAKING continued 14 Eliminating Ground Loops - Hum and Buzz Audible hum and buzzing noises in a system are usually related to issues with the component grounds. Ground (sometimes called common) is a point of reference for voltages in virtually all audio and video components. Ground is supposed to remain at zero volts while the audio s ...
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Parasound JC 1 Amplifier - page 18
PARASOUND JC 1 DESIGN OVERVIEW 15 Designed by John Curl and CTC Builders P arasound has worked with legendary designer John Curl since 1 989. John has been a legend among audiophiles and electronic engineers since the mid ‘70s. He pioneered measurements to correlate musical accuracy with the materials used in component par ts, worked with world-c ...
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Parasound JC 1 Amplifier - page 19
PARASOUND JC 1 DESIGN OVERVIEW continued 16 Class A/AB Operation Pure class A operation provides the purest sound. However , an amplier operating entirely in class A operation would be enormous, highly inefcient, and generate far too muc h heat. Class AB combines some of the advantages of Class A with the efciency of Class B operation. It ...
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Parasound JC 1 Amplifier - page 20
PARASOUND JC 1 SPECIFICATIONS 17 Power Output. 20 Hz - 20 kHz 40 0 w atts continuous, 8 Ω 800 watts continuous, 4 Ω Class A Power Output 25 watts, bias set to High 1 0 watts, bias set to L ow Current Capacity 135 amperes peak Slew Rate > 130 volts per microsecond Frequency Response 2 Hz - 120 kHz, +0/-2 dB Total Harmonic Distortion < 0.15 ...
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Parasound JC 1 Amplifier - page 21
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Parasound JC 1 Amplifier - page 22
Parasound Products, Inc. 950 Battery Street, San Francisco, CA 94111 415-397-7100 / Fax 415-397-0144 www.parasound.com ...
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