McIntosh MC1201 Monoblock Power Amplifier
producing a massive 1200 watts, the MC1201 is the most powerful amplifier ever created by McIntosh Laboratory. The extraordinary quad-differential design of the MC1201 actually consists of two complete amplifier circuits, one the mirror image of the other, whose outputs are combined in the unique McIntosh Output Autoformer, resulting in totally balanced operation from input to speaker output and the cancellation of virtually all distortion.
The McIntosh Autoformer, a hand-crafted transformer with output connection for two, four and eight ohms, creates an ideal impedance match to quard against distortion and reduction in power. A McIntosh amplifier with an Autoformer can also safely drive multiple speakers connected in parallel, without shortening the life expectancy of the output stage. Far from exacting any performance penalty, the Autoformer's frequency response exceeds that of the output circuit, and extends well beyond the audible range, for almost immeasurably low distortion.
Features:
Double-Balanced Push-Pull Design
Exclusive McIntosh Output Autoformer
Exclusive McIntosh Power Assurance System
Power Guard Clipping Protection
Sentry Monitor Current Protection
Thermal Cut-out
DC Failure Protection
Turn-On Delay
Soft Start Inrush protection
Illuminated Peak-Responding Wattmeter
Balanced Connections
Remote Power Control
Exclusive McIntosh Power Assurance System - A collection of technologies that enhance performance and reliability and protect the amp and the loudspeakers
Power Guard Clipping protection - A waveform comparison circuit continuously monitors both input and output signals and dynamically adjusts the input level to insure maximum output power 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.
Thermal cutouts - protect your amp from overheating if cooling air is blocked and transistors become too hot.
DC failure protection - guards speakers against output circuit failure. The output autoformer prevents DC from reaching the speaker.
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. Soft Start is one of many details that contribute to the remarkable longevity of McIntosh equipment.
Specifications
Frequency Response
20 Hz - 20 kHz, +0 / -0,25 dB
10 Hz - 100 kHz, +0 / -3,9 dB
Total Harmonic Distortion: 0,005% max. at any level from 250 mW 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:
Balanced : 124 dB below rated output
Unbalanced : 120 dB below rated output
RMS Power Output (8/4/2 ohm): 1200 W min. sine wave continuous average power output from 20 Hz to 20 kHz
Input Impedance: 10 k Ohms
Output Load Impedance: terminals for 8, 4 , or 2 Ω
Input Sensitivity: 2,45 V (Unbalanced); 4,9 V (Balanced)
Wide band Damping Factor: 100 (8 Ω )
Dynamic headroom: 2,1 dB
Rated Power band: 20 Hz to 20 kHz
Power Guard: Clipping is prevented and THD does not exceed 2% with up to 14 dB overdrive at 1 kHz
Power Requirements: 120 V, 50/60 Hz , 15 A
Dimensions (W x H x D): 450 x 279 x 499 mm (17,75" x 11" x 19,63")
Panel clearance required in front of mounting panel is 45 mm (1-3/4") for handles
Weight (Net): 66,8 kg (147 lbs)
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