McIntosh MC 402 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. MC402 Power Amplifier EXCLUSIVE MCINTOSH POWER ASSURANCE SYSTEM A collection of technologies that enhance performance and reliability and protect the amp and loudspeakers. Power Guard A waveform comparison circuit continuously monitors both input and output signals. If any difference is detected, Power Guard dynamically adjusts the input level to ensure maximum power output while preventing harsh sounding clipping distortion. Sentry Monitor Current protection continually senses the voltage and current of the output stage and confines it to a safe limit, without limiting power output. DC Failure Protection Protects speakers against output circuit failure. Any DC current that appears in the output is shunted to ground by the output autoformer. Thermal Sensors Protects against overheating if cooling air is blocked and output transistors become too hot. Turn-on Delay Delays operation for about two seconds after turn-on, to silence any pops or thumps generated by other equipment. Soft Start Inrush Protection Eliminates component stress during turn-on. Thermistors in the power transformer act as a cushion against inrush current. Fully balanced differential design 400 watts (stereo) or 800 watts (mono parallel) High output current capability (>100 amps) Balanced and unbalanced inputs Exclusive McIntosh Output Autoformer) Wide power bandwidth, low distortion Exclusive McIntosh Power Assurance System Illuminated peak-responding, true-reading watt meter with hold Fiber optic light diffuser illumination for front panel nomenclature Remote power control Massive gold-plated five-way output binding posts Fanless convection cooling Modular construction with stainless steel chassis with super mirror finish 1/2"-thick glass front panel with illuminated nomenclature FREQUENCY RESPONSE 20Hz to 20kHz, +0 / -0.25dB 10Hz to 100kHz, +0 / -3.0dB TOTAL HARMONIC DISTORTION 0.005% max. at any level from 250mW to rated power output INTERMODULATION DISTORTION SMPTE 0.005% maximum if instantaneous peak output does not exceed twice the output rating A-WEIGHTED SIGNAL-TO-NOISE RATIO Unbalanced: 94dB (120dB below rated output) Balanced: 98dB (124dB below rated output) RMS POWER OUTPUT 400W min. (stereo) or 800W min. (mono) sine wave continuous average power output from 20Hz- 20,000Hz INPUT IMPEDANCE 10,000 ohms (unbalanced) 20,000 ohms (balanced) OUTPUT LOAD IMPEDANCE Terminals for 8, 4, or 2 ohms (stereo) Terminals for 1, 2, or 4 ohms (mono) INPUT SENSITIVITY 2.0V unbalanced 4.0V balanced WIDE BAND DAMPING FACTOR Greater than 40 DYNAMIC HEADROOM 2.1dB RATED POWER BAND 20Hz to 20kHz POWER GUARD& Clipping is prevented and THDdoes not exceed 2% with up to14dB overdrive at 1kHz POWER REQUIREMENTS 120V 50/60Hz, 10A OVERALL DIMENSIONS (H X W X D) 17 1.2 (44.45 cm) x 9 7/16 (23.97 cm) x 20 (50.8 cm) WEIGHT 110.5 lbs. (50.1kg) net 143.5 lbs. (65.1kg) boxed 12.02.MC402.20k.JCP 35005200