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McIntosh Laboratory, Inc.   2 Chambers Street Binghamton, New York 13903-2699   Phone: 607-723-3512   www.mcintoshlabs.com

MC451

Dual Mono 

Power Amplifier

Owner’s Manual

Содержание MC451

Страница 1: ...McIntosh Laboratory Inc 2 Chambers Street Binghamton New York 13903 2699 Phone 607 723 3512 www mcintoshlabs com MC451 Dual Mono Power Amplifier Owner s Manual...

Страница 2: ...al Specifications 14 Packing Instructions 15 Packaging Parts List 15 Thank You from All of Us at McIntosh You have invested in a precision instrument that will provide you with many years of enjoyment...

Страница 3: ...ir Warm Air Dimensions The following dimensions can assist in determining the best location for your MC451 17 8 45 4 cm 10 8 27 6 cm 11 16 30 cm 12 4 31 1 cm WATTS HOLD LIGHTS OFF METER REMOTE OFF ON...

Страница 4: ...porarily remove the tube cover To remove the tube cover 1 Use a 2 phillips head screw driver to remove the four screws two on each side that hold the tube cover 2 Pull the tube cover upward from the c...

Страница 5: ...nnection It is a safe bet to use the lower impedance output terminals for a speaker whose impedance falls between two choices Loudspeaker Cables When connecting loudspeakers to the MC451 it is very im...

Страница 6: ...too high a circuit in Power Guard SGS is activated which then dynamically attenuates the input signal in real time to keep the vacuum tubes operating at safe levels 5 POWER GUARD LED Indicates when P...

Страница 7: ...7 Front Panel Displays and Knobs...

Страница 8: ...ut sends a full range input signal to the solid state amplifier 5 Crossover Refer to page 12 Setting Up the Crossover for additional information 6 Power Control Power control allows the MC451 to send...

Страница 9: ...2 SOLID STATE 300W OUTPUTS CLASS 2 WIRING VACUUM TUBE 150W OUTPUTS CLASS 2 WIRING POWER CONTROL OUT IN AUTO OFF ENABLED DISABLED CROSSOVER MONO MODE VACUUM TUBE INPUT INPUT MODE BALANCED UNBALANCED BA...

Страница 10: ...R POINT Hz 1 2 3 3 6 0 VACUUM TUBE LEVEL dB HDMI ARC DA2 DIGITAL AUDIO MODULE USB AUDIO COAX 2 COAX 1 MCT OPTICAL 2 OPTICAL 1 DIGITAL AUDIO INPUTS SERIAL NUMBER POWER CONTROL MAIN TRIG 1 TRIG 3 PASSTH...

Страница 11: ...CONTROL OUT IN AUTO OFF ENABLED DISABLED CROSSOVER MONO MODE VACUUM TUBE INPUT INPUT MODE BALANCED UNBALANCED BAL UNBAL MONO SOLID STATE INPUT AMPLIFIER MODE MONO SEPARATE BAL UNBAL 300 250 400 550 1...

Страница 12: ...plifier CROSSOVER MONO MODE 300 250 400 550 180 130 800 1k 100 CROSSOVER POINT Hz 1 2 3 3 6 0 VACUUM TUBE LEVEL dB The VACUUM TUBE LEVEL knob allows gain adjustments to be made to the vacuum tube ampl...

Страница 13: ...er point and 0dB level difference Other crossover points will have similar curves 6 4 2 0 2 4 6 8 10 12 14 16 18 20 22 24 26 20 30 50 100 200 300 500 1k 2k 3k 5k 10k 20k Frequency Hz Decibels Combined...

Страница 14: ...from 20Hz to 20 000Hz 0 3 0dB from 10Hz to 100 000Hz Total Harmonic Distortion 0 005 maximum harmonic distortion at any power level from 250 milliwatts to rated power 20Hz to 20 000Hz Intermodulation...

Страница 15: ...n the bottom pad Failure to do this will result in shipping damage Use the original shipping carton and interior parts only if they are all in good serviceable condition If a shipping carton or any of...

Страница 16: ...cts is the policy of McIntosh Laboratory Incorporated who reserve the right to improve design without notice Printed in the U S A McIntosh Laboratory Inc 2 Chambers Street Binghamton NY 13903 www mcin...

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