McIntosh MC7100, Owner'S Manual

Page 1: ...MC7100 POWER AMPLIFIER ...

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Page 3: ...MC7100 POWER AMPLIFIER ...

Page 4: ...vice personnel when A The power supply cord or the plug has been damaged or B Objects have fallen or liquid has been spilled into the instrument or C The instrument has been exposed to rain or D The instrument does not appear to operate normally or exhibits a marked change in performance or E The instrument has been dropped or the enclosure damaged 15 Servicing Do not attempt to service beyond tha...

Page 5: ...ation Mclntosh Laboratory provides a Service Contract to the original purchaser Your Mclntosh Authorized Service Agency can expedite repairs when you provide the Ser vice Contract with the instrument for repair SERVICE CONTRACT 4 INTRODUCTION 5 INSTALLATION 5 6 7 HOW TO CONNECT INPUTS 8 HOW TO CONNECT OUTPUTS 8 9 CONNECTING DIAGRAMS 10 SPECIFICATIONS 11 PERFORMANCE CHARTS 12 TECHNICAL DESCRIPTION ...

Page 6: ... service agency will repair all Mclntosh instruments at normal service rates To receive the free service under the terms of the service contract the ser vice contract certificate must accompany the instrument when taken to the service agency 3 Always have service done by a Mclntosh authorized service agency If the instrument is modified or damaged as a result of unauthorized repair the service con...

Page 7: ...ower amplifiers the famous patented Mclntosh POWER GUARD cir cuit is included You never have to be concerned with possible amplifier overdrive You will not experience amplifier clipping with its harsh speaker damaging distortion when playing wide dynamic range program sources such as compact discs Many other desirable features are included such as gold plated output terminals DC out put protection...

Page 8: ...ide the amplifier completely into the cabinet until the back side of its front panel is pressing gently against the front of the cabinet panel Turn the PANLOC buttons approximately one quarter turn clockwise to lock the amplifier into the cabinet Turn the buttons one quarter turn counterclockwise to unlock and remove the amplifier CUSTOM INSTALLATION 1 MARK THE CABINET FRONT PANEL Tape the plastic...

Page 9: ...e PANLOC shelves inside the cutout with the short flange against the front face of the cabinet panel Fasten the shelves by inserting two fillister head 6 32 screws through the holes in each of the PANLOC shelf flanges through the front panel and into the threaded receptacle on the mounting strips 6 INSTALL THE AMPLIFIER Guide the amplifier AC power cord through the panel opening to the back of the...

Page 10: ...lifier input sensitivity for the rated 100 watts output is 2 5 volts THE 2 5 VOLT SENSITIVITY SETTING IS RECOMMENDED FOR BEST OPERATION WITH A McINTOSH PREAMPLIFIER Turning the LEVEL controls fully on clockwise will give a higher amplifier sensitivity of 1 4 volts which may be required for other applications HOWTO CONNECT OUTPUTS SPEAKER CABLES Use high quality speaker cables since this is an impo...

Page 11: ... a switched AC receptacle on the back of a preamplifier or other accessory component The plug blades are polarized so be certain the plug is fully inserted in the outlet to prevent blade exposure The MC7100 has no AC power switch so it must be switched on and off by a preamplifier or other accessory component Make certain that the AC outlet used can supply at least 6 amperes of current The amplifi...

Page 12: ...OPHONIC CONNECTION LEFT SPEAKER 4 OR 8 OHMS RIGHT SPEAKER 4 OR 8 OHMS MUST BE IN STEREO POSITION FOR STEREO PROGRAMS PREAMPLIFIER 8 OHM SPEAKER MUST BE IN MONO POSITION FOR MONO PROGRAMS MONO INPUT SIGNAL 10 STEREO MONO STEREO MONO ...

Page 13: ...ROOM 8 ohms 1 7dB 4 ohms 2 1dB FREQUENCY RESPONSE 0 0 25dB from 20Hz to 20 000Hz 0 3 0dB from 10Hz to 100 000Hz INPUT SENSITIVITY 1 4 volts 2 5 volts at gain control center detent A WEIGHTED SIGNAL TO NOISE RATIO 95dB 115dB below rated output INTERMODULATION DISTORTION SMPTE 0 005 maximum if instantaneous peak power output does not exceed twice the out put power rating RATINGS WIDE BAND DAMPING FA...

Page 14: ...PERFORMANCE CHARTS 12 ...

Page 15: ...at protec tion circuits are desirable and necessary to prevent amplifier or loudspeaker damage due to abnormal circumstances The genius of Mclntosh engineering has resulted in protection circuits which have no effect or compromise on the normal performance of a power amplifier The SENTRY MONITOR circuit is a good example The MC7100 incorporates seven specific protection circuits to enhance its per...

Page 16: ...WER GUARD circuit acts as a waveform comparator monitoring both the input and output waveforms Under normal operating conditions there are no differences between these waveforms When an amplifier is overdriven beyond its maximum distortion free out put then there will be a difference between the two waveforms If the difference exceeds 0 3 equivalent to 0 3 harmonic distortion the amber POWER GUARD...

Page 17: ...BLOCK DIAGRAM 15 ...

Page 18: ...039942 ...

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