Parasound Halo JC-3 showroom demo
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Ships from | Broadview Heights, OH, 44147 |
Ships to | United States |
Package dimensions | 21.0" × 18.0" × 9.0" (25.0 lbs.) |
Shipping carriers | USPS, UPS or FedEx |
Shipping cost | $22.95 |
Original accessories | Box, Manual |
Average | Research Pricing |
All original packaging and manuals. This item was used for a store demo and is in perfect condition.
Design OverviewJohn Curl's phono preamps are legendary. His approach to amplifying extremely low levelsignals gives the listener the best chance to experience the full emotional content of thesource. In the JC 3 the physical implementation of the circuits closely follows the actualcircuit topology and the layout is as compact as possible to minimize pickup of external noise.The preservation of low level signals is achieved by separating the critical audio signals fromthe non-audio circuits and non-audio wiring. Each channel has its own circuit board and eachchannel is fully enclosed in its own extruded aluminum "vault." This vault shields thesensitive 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 toroidtransformer for minimizing radiated hum. However, it is far superior to a toroid transformer inpreventing noise carried on the AC power line from passing through to its secondarywindings and into the power supply.A second level of shielding separates the phono vaults from the power supply, powertransformer and even the transformer wires running to the AC inlet on the rear panel. Thisshielding consists of two partitions of 3/8" low carbon "mild" steel to prevent anyelectromagnetic radiation from reaching the phono modules. The rear panel of the JC 3 ismade of aluminum to prevent any electromagnetic interaction with the sensitive phonocircuitry.Finally, the JC 3 has an on-board AC line conditioner to filter out high frequency noise anddistortion that may be present on your AC power line. This eliminates a potential source ofnoise before it ever reaches the JC 3 power transformer. The resulting extremely low noiselevels enable musical nuances to emerge from an utterly silent background.
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 setting: 47k Ω MC setting: 47k Ω or 100 Ω Output Impedance Unbalanced: < 100 Ω Balanced: < 100 Ω 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 XLR Pin Identification AC Power Requirement Dimensions Weight Rack Mount Accessory www.parasound.com 13 1 = Ground (Shield) 2 = Positive 3 = Negative (Return) 115 or 230 VAC 50 - 60 Hz 12 watts Width: 17-1/4" (437mm) Depth: 13-3/4" (350mm) Height, with feet: 4-1/8" (105mm) Height, without feet: 3-1/2" (89mm) Net: 18 lbs. (8.2 Kg) Shipping: 25 lbs. (11.4 Kg) HRA 2 (may be purchased separately)und
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