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Parasound JC 3 manual

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Table of contents for the manual

  • Page 1

    JC 3 Phono Preamplifier OWNER’S GUIDE[...]

  • Page 2

    2 Important Safety Instructions The lightning flash with the arrow head symbol w ithin an equilateral triangle is intended to aler t the user to the presence of “dangerous voltage” inside the product that may constitute a risk of electric shock. The exclamation point within an equilateral triangle is intended to alert the user to the pr esence [...]

  • Page 3

    3 Table of Contents Introduction ................................................. 4 Placement and Ventilation Guidelines .............................. 5 AC Voltage Selection .......................................... 6 Audio Input and Output Connections .............................. 7 Other Connections on your JC 3 ..............................[...]

  • Page 4

    4 INTRODUCTION Thank You for Choosing Parasound Your new Parasound Halo JC 3 Phono Preamplif ier is the pinnacle of analog audio technology and value engineering. It is legendary designer J ohn Curl’s latest design, carrying on a proud tradition of phono preamp designs dating back to the 1970s. We are proud to offer you this exceptionally ve rsat[...]

  • Page 5

    5 Unpacking Your JC 3 & Placement Guidelines Unpacking Your JC 3 Carefully remove your JC 3 from its shipping carton and locate all the enclosed accessories: • AC power cord • Two trigger wires, one with 3.5 mm mini plugs, one with a 2.5mm and a 3.5mm mini plug While you are unpacking your JC 3, inspect it thoroughly for possible shipping d[...]

  • Page 6

    6 AC Voltage Selection 115v / 230v AC Voltage Selector Switch This switch is found on the underside of the chassis. Make sure the 115/230V switch is set for the correct AC line (mains) voltage before you plug in the JC 3’s AC power cord. Note: The JC 3 could be seriously damaged if AC Voltage Selector switch is set incorrectly. Prior to plugging [...]

  • Page 7

    7 Connecting your JC 3 Alw ays disconnect the AC cords to y our JC 3 and pow er amplifier(s) before making or changing any input, output or trigger wire connections. Inserting or removing an input or output cable while the JC 3 or power amplifiers are turned on can result in a blast of sound that can damage your loudspeakers. Make sure there is no [...]

  • Page 8

    8 Audio Output Connections The JC 3 Output Jacks connect to the input jacks on your line level preamplifier. Each JC 3 module has two Output jacks, one Balanced XLR jack and one Unbalanced RCA jack. The balanced and unbalanced jacks are active simult aneously. If your preamplifier is equipped with balanced inputs we recommend using the JC 3 Balance[...]

  • Page 9

    9 Rear Panel Controls Turn On Options Switch For your convenience, there are two ways the JC 3 can be turned on and off. Manual : Use the front panel On-Off button Auto : When the Turn On Options switch is se t to the auto position, the JC 3 is turned on and off with an external +9 V to + 12 V voltage from your preamplifier. When the external volta[...]

  • Page 10

    10 Front Panel Controls On-Off Button Push once to turn on the JC 3. There will be a slight delay as the circuits stabilize and the DC servos settle down. When the JC 3 is tur ned on the blue glow around the On-Off button will be brighter and the red P badge will glow brighter . Push again to turn off the JC 3. Mono Button Press the Mono button one[...]

  • Page 11

    11 Frequently Asked Questions Why won’t the JC 3 turn on when I press the On-Off button? - Check the setting of the Turn On Options switch. It must be set to Manual for the front panel On-Off button to function. Why won’t the JC 3 turn on with an external DC trigger? - Check the setting of the Turn On Options switch. It must be set to Auto for [...]

  • Page 12

    12 Are You Having Difficulty? Repair or Service Call your Parasound dealer first. If the dealer c an’t help you with your problem we encourage you to call Parasound’s Technical Service Department, toll-free at 1-866-770-8324 , Monday - Friday, 8am - 4pm Pacific Time. We can suggest other diagnostic tests you can easily perform. If we determine [...]

  • Page 13

    13 Specifications Frequency Response 20 Hz - 20 kHz, +/- 0.2 dB THD Distortion: < 0.005% at 20 kHz S/N Ratio (MM ) > 86 dB, input shorted, IHF A-weighted > 80 dB, input shorted, unweighted S/N Ratio (MC) > 75 dB, input shorted, IHF A-weighted > 70 dB, input shorted, unweighted Crosstalk: 72 dB at 1 kHz Phono Input Impedance MM settin[...]

  • Page 14

    14 Parasound Products, Inc. 2250 McKi nnon Ave, San Francisco, CA 94124 415-397-7100 / Fax 415-397-0144 www.parasound.com[...]