McIntosh C 46 Brochure

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McIntosh Laboratory, Inc. 2 Chambers Street, Binghamton, New York 13903-2699 Tel (607) 723-3512 - US Toll-Free (800) 538-6576 - Fax: (607) 724-0549- www.mcintoshlabs.com For the Consumers Protection: In order to ensure the highest level of customer satisfaction, new McIntosh products may only be purchased over-the-counter or delivered and installed by an Authorized McIntosh Dealer. McIntosh products that are purchased over the Internet, by phone or mail order are presumed to be used and do not qualify for any McIntosh Warranty. McIntosh does not warrant, in any way, products that are purchased from anyone who is not an Authorized Dealer or products that have had their serial number altered or defaced. C46 Audio Control Center Silent Electromagnetic Switching McIntosh Silent Electromagnetic Switches, located literally at the input panel, eliminate the need for audio signals to travel through any internal wiring where it would be subject to noise pickup. The state- of-the-art switches consist of ruthenium contacts-the finest conducting material known- which are sealed within a glass tube containing an inert oxygen- free gas that eliminates all possibility of contamination and results in a distortion-free switch that never needs cleaning. The glass tube is enclosed within a multi-layer copper coil, which provides the means to actuate the switch and also provides additional shielding. The entire assembly is finally encased in a shock-absorbent plastic housing for protection. VRV (Variable Rate Volume) Digitally Controlled Attenuator The output attenuator controls volume over 214 steps of .5dB each with accuracy within .1dB. The volume vs. rotation rate varies as preamplifier gain varies and attenuation changes occur at the zero crossings of the audio signal to prevent audible artifacts during adjustment. FREQUENCY RESPONSE 20Hz to 20kHz, +0 / -0.25dB TOTAL HARMONIC DISTORTION 0.002% max. from 20Hz to 20kHz A-WEIGHTED SIGNAL-TO-NOISE RATIO Phono: 86dB High Level: 97dB RATED OUTPUT VOLTAGE 5 Vrms at balanced outputs 2.5 Vrms at unbalanced outputs INPUT IMPEDANCE Phono, MM: 47K ohms, 65pf High Level: 47K ohms (balanced) 22K ohms (unbalanced) OUTPUT IMPEDANCE 240 ohms (unbalanced) 480 ohms (balanced) VOLTAGE GAIN Phono to Tape Out: 40dB High Level to Tape Out: 0dB High Level to Main Output: 15dB MAXIMUM VOLTAGE OUTPUT 10.0 Vrms unbalanced, 20 Vrms balanced SENSITIVITY Phono: 4.5mV for rated output High Level: 450mV, 900 balanced for rated output Balanced: 900mV for rated output POWER REQUIREMENTS 120V 50/60Hz, 50 wattsDIMENSIONS (H X W X D) 5 3/8" (13.65 cm) x 17 1/2" (44.45 cm) x 19" (48.26 cm) Panel clearance required in front of mounting panel is 1 3/4 inches (4.5 cm) for connections WEIGHT 26 lbs. (11.79kg) net 40.41 lbs. (18.33kg) boxed 12.02.C46.20k.JCP 35005100 C46 Remote Control