McIntosh MAC 1900, Owner'S Manual

Page 1: ...THE MAC 1900 SOLID STATE AM FM FM STEREO RECEIVER Price 1 25...

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Page 3: ...rts materials and labor needed to return the measured performance of the instrument to the original performance limits free of any charge The SERVICE CON TRACT does not cover any shipping costs to and...

Page 4: ...p 2 If the cutout is to be located from the rear of the panel begin here 1 On the back of the cabinet panel scribe a vertical centerline through the exact center of the area in which the cutout is to...

Page 5: ...he tape recorder Connect a second tape recorder in the same way to the L and R TAPE 2 OUTputs To Playback Monitor Connect a cable from the left channel out put of a tape recorder to the L TAPE MONitor...

Page 6: ...ocation In some cases it may be neces sary to position the antenna for best signal recep tion This should be done before it is permanently located Avoid locating the antenna next to other wires or met...

Page 7: ...ers Maximum Performance Indicator Antenna and Ground FM ANTENNA FM ANTENNA INPUT GROUND TO WATER PIPE OR ROD IN EARTH TO RECORD CHANGER OR TURNTABLE MAXIMUM PERFORMANCE INDICATOR TURNTABLE RECORD CHAN...

Page 8: ...from the right MAIN loudspeaker to the RIGHT MAIN SPEAKER push connector Use lamp cord bell wire or wire with similar type of insulation to connect the speakers to the amplifier For the nor mally sho...

Page 9: ...ING MCINTOSH LOUDSPEAKERS WITH THE ENVIRONMENTAL EQUALIZER MQ101 ENVIRONMENTAL EQUALIZER RIGHT SPEAKER LEFT SPEAKER 7 REMOTE 1 LEFT SPEAKER REMOTE 1 RIGHT SPEAKER REMOTE 2 LEFT SPEAKER REMOTE 2 RIGHT...

Page 10: ...response up to 16 dB at 20 Hz Sliding the control right increases low frequency response up to 16 dB at 20 Hz HEADPHONES The front panel HEADPHONE jack has been de signed to feed low impedance dynami...

Page 11: ...R Connects the left input to both loud speakers R to L R Connects the right input to both loudspeakers L R to L Connects the left plus right pro gram to the left loudspeaker only L R to R Connects th...

Page 12: ...er program sources while playing tapes from a second recorder back by pushing the MONITOR TAPE 2 but ton At the same time the MAC 1900 can be used to play a tape from tape recorder 1 by releasing the...

Page 13: ...reverse the leads on one of the loudspeakers only When the sound comes from the midpoint between the speakers they are in PHASE TO BALANCE LOUDNESS 1 Press the MODE pushbutton to MONO 2 Play a famili...

Page 14: ...the tuning in dicator will show a station yet no program is heard from the speakers The muting circuit in the tuner has rejected the station because there is objectionable noise with the weak signal...

Page 15: ...ls 0 to 65 dB Does not change stereo balance as loudness is changed The AC power ON OFF switch is coupled with this control INPUT Six positions TAPE 1 TAPE 2 AM FM PHONO 1 and PHONO 2 MODE Pushbutton...

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Page 19: ...used at the input of the tape amplifier The tone controls are in a negative feedback loop around the amplifier stages to give excellent low noise and low distortion char acteristics With the tone cont...

Page 20: ...ll direct coupled to insure maximum low frequency performance In direct coupled circuits failure of any transistor in the power amplifier could cause a DC potential to ap pear in the output To assure...

Page 21: ...300 ohm line are made with new push type terminals No tools are required A type F male connector is furnished for 75 ohm coaxial cable The FM IF consists of two integrated circuits and two quad tuned...

Page 22: ...it is freedom from cross modulation and over loading by strong local stations A high quality loopstick antenna is provided It can be rotated for maximum performance optimum signal rejection or minimum...

Page 23: ...Block Diagram 21...

Page 24: ...McINTOSH LABORATORY INC 2 CHAMBERS ST BINGHAMTON N Y 13903 607 723 3512 Design subject to change without notice Printed in U S A 038 674...