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18

Specifications

Power Output

Minimum sine wave continuous average power output 

is:

1,200 watts into 2 ohm load

1,200 watts into 4 ohm load

1,200 watts into 8 ohm load

Output Load Impedance

2, 4 or 8 ohms 

Rated Power Band

20Hz to 20,000Hz

Total Harmonic Distortion

0.005% maximum harmonic distortion at any power 

level from 250 milliwatts to rated power, 20Hz to 

20,000Hz

Dynamic Headroom

2.2dB

Frequency Response

+0, -0.25dB from 20Hz to 20,000Hz

+0, -3dB from 10Hz to 100,000Hz

Input Sensitivity (for rated output)

4.8 Volt Balanced

2.4 Volt Unbalanced

Signal To Noise Ratio (A-Weighted)

124dB below rated output, Balanced

120dB below rated output, Unbalanced

Intermodulation Distortion

0.005% maximum, if the instantaneous peak power 

output does not exceed twice the rated power output 

for any combination of frequencies from 20Hz to 

20,000Hz

Wide Band Damping Factor

Greater than 40

Input Impedance

10,000 ohms

Power Guard

Less than 2% THD with up to 14dB overdrive at 

1,000Hz

Power Control Input

5-15VDC, less than 1mA

Power Control Output

12VDC, 50mA maximum total

Output is delayed 0.2 seconds from turn On

Power Requirements

100 Volts, 50/60Hz at 15 Amps

110 Volts, 50/60Hz at 12.5 Amps

120 Volts, 50/60Hz at 12 Amps

220 Volts, 50/60Hz at 7.5 Amps

230 Volts, 50/60Hz at 6.5 Amps

240 Volts, 50/60Hz at 6.5 Amps

Standby: 0.5 watts

Note: Refer to the rear panel of the MC1.25KW for the 

correct voltage.

Overall Dimensions

Width is 17-3/4 inches (45.09cm)

Height is 12-5/16 inches (31.27cm) including feet

Depth is 22 inches (55.88cm) including the Front Panel 

and Cables

Weight

158 pounds (71.7 kg) net, 184 pounds (83.4 kg) in ship-

ping carton

Shipping Carton Dimensions

Width is 31 inches (78.74cm)

Depth is 28 inches (71.12cm)

Height is 17-1/4 inches (43.82cm)

Power Amplifier Specifications

General Specifications

Содержание MC1.25KW

Страница 1: ...McIntosh Laboratory Inc 2 Chambers Street Binghamton New York 13903 2699 Phone 607 723 3512 www mcintoshlabs com MC1 25KW Quad Balanced Power Amplifier Owner s Manual...

Страница 2: ...o your Dealer You can also return it to the McIntosh Laboratory Service Department For assistance on factory repair return procedure contact the McIntosh Service Department at McIntosh Laboratory Inc...

Страница 3: ...information on the MC1 25KW and other McIntosh Products please visit the McIntosh Web Site at www mcintoshlabs com Caution The MC1 25KW Amplifier weight is 158 pounds 71 7 kilograms It requires two o...

Страница 4: ...g with its harsh distorted sound that can also damage your valuable loudspeaker Sentry Monitor and Thermal Protection McIntosh Sentry Monitor power output stage protec tion circuits ensure the MC1 25K...

Страница 5: ...or your MC1 25KW Dimensions 12 1 4 31 11cm 17 3 8 44 15cm Rear View of the MC1 25KW 18 45 72cm 19 1 2 49 50cm 3 16 0 48cm 10 1 2 26 70cm 14 35 60cm 1 9 16 3 96cm 1 1 2 3 81cm 1 5 8 4 12cm Side View of...

Страница 6: ...et in maintaining all the system components at the coolest possible operating temperature A custom cabinet installation should provide the fol lowing minimum spacing dimensions for cool opera tion All...

Страница 7: ...ch selects between UNBAL anced or BALanced Input BALANCED INput for audio cables from a Preamplifier or A V Processor audio output BALANCED OUTput for an audio cable to the next Power Amplifier Input...

Страница 8: ...able ends Carefully remove sufficient insulation from the cable ends refer to figures 2 3 4 If the cable is stranded carefully twist the strands together as tightly as possible Notes 1 If desired the...

Страница 9: ...pade Lug or Wire Connections 11 Locate the Terminal Connections Cover from the inside of the MC1 25KW shipping carton Insert the just prepared Loudspeaker hookup cables thru the cover opening on the r...

Страница 10: ...14AWG 12AWG 6 Prepare the Loudspeaker Hookup Cable for attach ment to the MC1 25KW Power Amplifier Bare wire cable ends Carefully remove sufficient insulation from the cable ends refer to figures 2 3...

Страница 11: ...ck For additional instruction on making Loudspeaker Connections contact your McIntosh Dealer or McIntosh Techni cal Support 11 Attach the Terminal Connections Cover to the MC1 25KW Rear Panel with the...

Страница 12: ...ndicator POWER Switch Turns AC Power Off Remote AC Power On METER Switch selects the display modes of the Power Output Meter and Meter Illumination Meter indicates the Output of the amplifier LED indi...

Страница 13: ...passes through the amplifier The meter point er will then rise to the newer higher indication If no further power peaks are reached the meter pointer will very slowly return to its rest position or l...

Страница 14: ...5KW Output Autoformer It provides low distortion power transfer at frequencies from below 20Hz to well beyond 20 000Hz with optimum impedance points of two ohms four ohms and eight ohms The unequaled...

Страница 15: ...ermalTrak DC BIAS OUTPUT MUTE THERMAL SENSORS BALANCED AMP POWER GUARD ATTENUATOR INPUT MODE SWITCH AMP AMP UNBALANCED OUTPUT UNBALANCED INPUT BALANCED INPUT BALANCED OUTPUT ThermalTrak DC BIAS Block...

Страница 16: ...circuit and it ensures safe operation of the amplifier under even the most extreme operating conditions The different types of protection circuits incorporated in the MC1 25KW insure a long and safe o...

Страница 17: ...mer has toroidal windings on a toroidal core and can supply over 35 amps of continuous current Refer to figure 24 golf ball is for size comparsion It is enclosed in the legendary McIntosh Potted Enclo...

Страница 18: ...ion of frequencies from 20Hz to 20 000Hz Wide Band Damping Factor Greater than 40 Input Impedance 10 000 ohms Power Guard Less than 2 THD with up to 14dB overdrive at 1 000Hz Power Control Input 5 15V...

Страница 19: ...is 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 the interior part s are needed p...

Страница 20: ...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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