Manual Library / McIntosh
AM/FM Stereo Receiver (1982)
- With 200 Watts per channel, 14 inputs and a high-performance AM/FM tuner, the MAC7200 Receiver is a music lover’s dream. Tuner experience. McIntosh has been making tuners since the 1950s and they are one of the hallmarks of McIntosh, with the groundbreaking MR78 FM Tuner from 1972 considered an all-time classic in the audio industry.
- The MAC 2700 Series is a versatile 4-way remote air operated valve with large flow capabilities. Versatility in piping means the valve can be piped as a 4-way, 3-way, 2-way, normally closed or normally open or can be used for vacuum, diverter or selector applications.
Mac 1700 Manual
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The phono amplifier in the MAC4100 uses a new high technology integrated circuit operational amplifier. Its differential input stage has been optimized for low noise and low distortion performance.
Electronic input selector switching uses field effect analogue switches. The mechanical input selector simply switches small amounts of DC which turn the FET analogue switches off or on. This design eliminates degradation of frequency response and also eliminates noise pickup from long signal paths necessary with conventional mechanical switching. It means, as well, that switch clicks and pops have been eliminated.
The equalizer amplifier is constructed with ion implanted junction field effect operational amplifiers. These new devices amplify signals with a 6 dB better signal to noise ratio than their bipolar counterparts.
Amplifiers are capable of delivering large quantities of power when they are driven to clipping. Clipping is caused when the amplifier is asked to produce more power output than it can deliver with low distortion.
The MAC4100 has a built-in waveform comparator that compares the wave shape of the input signal with the output signal. If the disparity between the two signals exceeds 0.5% a front panel signal illuminates in red at the top of the power output indicators, with any further increase in distortion the Power Guard circuit will operate.
Tuning range: FM, MW
Power output: 75 watts per channel into 8Ω (stereo)
Frequency response: 20Hz to 20kHz
Total harmonic distortion: 0.05%
Damping factor: 30
Input sensitivity: 2mV (MM), 250mV (line)
Signal to noise ratio: 80dB (MM), 90dB (line)
Output: 250mV (line)
Speaker load impedance: 4Ω to 8Ω
Semiconductors: 31 x IC, 45 x transistors, 62 x diodes, 1 x SCR
Dimensions: 473 x 165 x 394mm
Finish: satin silver front panel, walnut grained vinyl cabinet
Mac 1700 Radio
instruction/owners manual -
BY1001+ service manual -
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McIntosh Stereo Receivers
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