McIntosh MAC 4200 Owner'S Manual Download | Manualshive

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Summary of Contents for MAC 4200

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Page 3: ...ADES CAN BE FULLY INSERTED TO PREVENT BLADE EXPOSURE The serial number purchase date and Mclntosh Laboratory Service Contract number are important to you for possible insurance claim or future service Record this information here Serial Number Purchasedate Service Contract Number Upon application Mclntosh Laboratory provides a Service Contract to the original purchaser Your Mclntosh Authoriz ed Se...

Page 4: ... receive the SERVICE CONTRACT your purchase must be made from a Mclntosh franchised dealer 4 The SERVICE CONTRACT is issued to you as the original purchaser To protect you from misrepresenta tion this contract cannot be transferred to a second owner 5 Any Mclntosh authorized service agency will repair Mclntosh instruments at normal service rates To receive service under the terms of the SERVICE CO...

Page 5: ...controls The loudness control is continuously variable It operates independently of the volume control and its contour is accurately modeled after the family of Equal Loudness curves developed by Drs Fletcher and Munson Loudness controls in ordinary equipment are usually sim ple passive circuits connected to a portion of the rotation range of the volume control As a consequence loudness compensati...

Page 6: ...l has a 1 8 32cm overhang on both sides and a 3 32 24crn overhang on the top and bottom see Fig 1 The weight of the receiver must rest on a shelf in the custom cabinet with a 15 38 1cm x 8 20 32cm ven tilation hole cut out see Fig 2 In addition a single 3 8 to 1 2 1cm to 1 3cm diameter hole see Fig 2 and Fig 3 must be drilled in the shelf A screw inserted through this hole secures the receiver aft...

Page 7: ...table to the L PH1 INPUT jack Connect the right channel cable of the turntable to the R PH1 INPUT jack Connect a second turntable to the PH2 input jacks in the same way Con nect the turntable s ground wire to the GND terminal Automatically shorting phono jacks eliminate the poten tial for hum and crosstalk and the need for shorting plugs CONNECTING PROGRAM SOURCE GROUNDS A ground GND post is provi...

Page 8: ...ower control with the AC power switch on a turntable through a cur rent detecting switch circuit On the rear panel the TURN TABLE AUTO MANUAL switch selects the mode of operation When the switch is in the AUTO position and a turn table plugged into one of the green AC power outlets the AC power to the receiver and to the black AC power outlets can be controlled by the turntable on off switch When ...

Page 9: ...HOW TO CONNECT 7 ...

Page 10: ...Left and Right PREAMP OUT jacks to the equalizer inputs The input jacks are automatic switching jacks that disconnect the preamplifier s output signal from the power amplifier s input and connects the signal processor s output with the power amplifier s input HOW TO CONNECT ADDITIONAL POWER AMPLIFIERS External power amplifiers may be fed from the MAC 4200 in two ways 1 Connect a shielded cable fro...

Page 11: ...yer connected to the PH2 input jacks The station display area will show PH2 EQUALIZER FREQUENCY CONTROLS Each of the five EQUALIZER FREQUENCY controls raises or lowers the volume of a band of frequencies whose center is the frequency marked above the control Both left and right channels are affected by each control The center or flat response position of each control has a de tent for easy referen...

Page 12: ...to TAPE 1 IN will be heard through the speakers MONITOR TAPE 2 The functions are the same as MONITOR TAPE 1 In ad dition it controls the signal from a tape recorder plugged into the front panel TAPE IN jack A recorder plugged into the front panel jacks disconnects the rear panel TAPE 2 IN jacks automatically The TAPE 2 OUT jacks on both front and rear panels are always connected TAPECOPY T1 T2push...

Page 13: ...n or all at once POWER ON The red pushbutton turns the AC power on or off When the power is on the display area panel Illuminates The turntable can also be used as a power switch See HOW TO CONNECT AUTOMATIC SYSTEM TURN ON OFF BALANCE AND LOUDness The BALANCE and LOUDNESS controls are concentric Adjusting the BALANCE control large outer knob adjusts the volume of the channels relative to each othe...

Page 14: ...s to the SPEAKER push connectors on the rear panel PRESET STATION SELECTING FEATHERTOUCH BUTTONS A momentary press on one of the feathertouch buttons marked 1 through 6 will recall from the electronic memory the preset AM or FM station assigned to that feathertouch button The corresponding red indicator above the digital frequency display will then light ENTER The ENTER feathertouch button and any...

Page 15: ... On each side of the center arrow are horizontaly displayed arrows One of these will light as a station is approaced to indicate tuning above or below the center frequency of the FM station FM stations broadcasting in stereo light the FM MPX bar indicator above the SIGNAL TUNING indicator An AM station is correctly tuned when the center ver tically displayed arrow at the bottom of the SIGNAL TUN I...

Page 16: ...ing can cause the station to be lost when power is turned off and then turned on again To prevent this always rotate the manual tuning knob until the center tuning arrow only is lighted The MANUAL AFL switch is on the back panel behind the AM loopstitch antenna Set this switch to NORMAL for most listening To make it easier to tune a weak station next to a strong station use the manual tuning knob ...

Page 17: ...n the sound is properly balanced The balance of the stereo system is affected by many things including the phase relationship of the loudspeakers room acoustics furniture placement room shape small differences in loudspeakers etc TO ADJUST LOUDSPEAKER PHASE Press the MONO pushbutton Play a familar recording Turn the BALANCE control to 12 o clock Stand about ten feet in front of and midway between ...

Page 18: ...rom 20 Hz to 20 000 Hz both channels operating INTERMODULATION DISTORTION 0 02 maximum harmonic distortion at any power level from 250 milliwatts to rated power per channel both channels operating for any combination of frequencies 20 Hz to 20 kHz FREQUENCY RESPONSE 20 Hz to 20 kHz 0 0 5 dB at rated power NOISE AND HUM Power Amp 100 dB below rated output 85 dB IHFA Tape and AUX Input 95 dB below r...

Page 19: ...s AC POWER OUTLETS 2 Green turntable current sensing 100 watts 2 Black switched 1 Red unswitched 1200 watts total POWER REQUIREMENTS 120 volts 50 60 Hz 60 to 480 watts MECHANICAL INFORMATION SIZE Width 18 9 16 inches 47 1 cm with walnut wood sides removed 17 9 16 inches 44 6 cm Height 6 1 16 inches 15 4 cm with the feet removed 5 1 4 inches 13 3 cm Depth 14 inches 35 6 cm from the mounting surface...

Page 20: ... 8 OHMS BOTH CHANNELS OPERATING 1 10 100 POWER OUTPUT IN WATTS RMS 30 20 10 0 0 02 THD POWER BANDWIDTH BOTH CHANNELS OPERATING FREQUENCY IN Hz 18 PERFORMANCE CHARTS 10 100 1k 10k 100k 90 80 70 60 50 40 140 130 120 110 100 POWER OUTPUT IN WATTS RMS 1k 0 1 0 01 0 0 07 0 06 0 05 0 04 0 03 0 02 HARMONIC DISTORTION IN PERCENT 0 10 0 09 0 08 100 0 1 0 2 0 1 0 INTERMODULATION DISTORTION IN PERCENT 10k 20...

Page 21: ... SIGNAL AMPLITUDE OUTPUT LEVEL IN dB 20 30 40 50 100 1k FREQUENCY IN HERTZ 10k 20k 2 1 10 0 10 20 30 40 50 60 70 LEVEL IN dB 30 40 50 60 70 INPUT LEVEL IN dBF FM FREQUENCY RESPONSE AND STEREO SEPARATION 8O 90 100 0 10 20 100 1k FREQUENCY IN HERTZ FM PERFORMANCE 98 MHz 1kHz MODULATION 10k 20k 20 20 10 0 10 20 RESPONSE IN dB FREQUENCY RESPONSE OF EQUALIZER FREQUENCY CONTROLS SET AT MAXIMUM AND MINIM...

Page 22: ... 10 0 10 20 30 40 RELATIVE OUTPUT IN dB 20 30 40 50 RELATIVE OUTPUT IN dB 60 70 80 600 400 200 0 200 400 FREQUENCY IN kHz 600 100 1k FREQUENCY IN HERTZ FM SELECTIVITY 10k 20k 20 10 0 10 20 30 40 RELATIVE OUTPUT IN dB AM FREQUENCY RESPONSE ...

Page 23: ... by the position of the loudness control EQUALIZER AMPLIFIER The equalizer amplifier uses high technology integrated circuit operational amplifiers with the output stage op timized for the best transient performance with minimum distortion Five other operational amplifiers are arranged in a circuit configuration equivalent to a series tuned cir cuit one at each of the five center frequencies Each ...

Page 24: ...parison produces no output When the amplifier is driven beyond its maximum power capacity a difference will develop If the disparity exceeds 0 5 equivalent to 0 5 total har monic distortion the difference will cause the Power Guard bar indicators to light If there is a further increase in the disparity the difference output controls a fast acting microseconds electronic attenuator at the amplifier...

Page 25: ...MAC 4200 RECEIVER BLOCK DIAGRAM 23 ...

Page 26: ...s and their frequency spacing from the desired tones This is what the Spectral Fidelity testing can do enlarge the scope of the data and showing its meaning more fully In these oscillograms you can see the difference in Spectral Fidelity when a Mclntosh is stressed and when other amplifiers are stressed 1 The Mclntosh stressed 10 dB above rated power 2 A foreign amplifier stressed 10 dB above rate...

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