McIntosh MA6200
¥ 478,000 (released in February 1979)
Commentary
A pre-main amplifier developed by integrating the Macintosh technology into one unit.
It is equipped with a 5-band independent program equalizer, two tape circuits capable of mutual dubbing, a pre-main separation terminal, and a continuously variable loudness compensator.
As a protective circuit, it is equipped with Power Guard System which is unique to Macintosh. Clipping distortion is suppressed automatically, and the speaker is protected from accident.
Model Rating
| Type | Pre-main amplifier |
| Power Amplifier Unit | |
| Effective output (20 Hz to 20 kHz) | 75W + 75W (8 Ω, THD 0.05%) 100W + 100W (4 Ω, THD 0.05%) |
| Input Sensitivity / Impedance | 2.5V/22k Ω |
| Speaker switching | A, B, C |
| Total harmonic distortion factor | 0.05% (0.25W ~ Effective Output, 20 Hz ~ 20 kHz) |
| Cross modulation distortion factor | 0.05% (whole output band, whole circumference fraction) |
| Frequency characteristic | 20 Hz ~ 20 kHz + 0 -0.5 dB |
| Signal-to-noise ratio | 100dB |
| Damping factor | 30 |
| Control Amplifier Section | |
| Input Sensitivity / Impedance | Phono1, 2 : 2mV/47k Ω Tuner, Aux1, 2, Tape1, 2 : 250mV/100k Ω |
| Output Level / Impedance | Rec out:0.25V |
| Signal-to-noise ratio | Phono:80dB Aux, Tape : 95 dB |
| Tone control | 5-element program equalizer Center Frequency : 30 Hz, 150 Hz, 500 Hz, 1.5 kHz, 10 kHz Each ± 12 db variable |
| Loudness control | Continuously variable |
| Tape monitor | Route 2 |
| Tape copy | 1 → 2, 2 → 1 |
| Mode selector | 7-point switching |
| Premain separation | Possible |
| <General> | |
| Pwer | 100 VAC, 50Hz/60Hz |
| AC outlet | Turntable interlock : 2 systems Power switch interlock : Route 3 |
| Power consumption | 400W maximum |
| External dimensions | Width 406x Height 138x Depth 330 mm |
| Weight | 13.6kg |