The finest
Pre-Amplifier / Power Amplifier combination
Outstanding
versatility in selection of inputs and outputs for multiple tape recording and
monitoring. You can even duplicate tapes from one recorder to another while
listening to yet a different program source such as records or tuner
Main and
Remote speaker switching from the front panel
Reproduces
music accurtely with 0,2% distortion from 20 Hz to 20 kHz at full continuous 70
watts RMS per channel, both channels operating into 8 Ω
"Sentry
Monitoring" of the output transistors is a McIntosh-patented electronic
protection circuit that really protects.
Speciall
McIntosh designed output electronic clamping circuit completely protects
speakers from possible DC current damage.
Silicon
Rectifier power supplies, including one electronically regulated, insure
maximum stability on both steady state and transient program material
18,600
microfarads of filter capacity is used in the main positive and negative power
supplies. This assures minimum impulse distortion and full power at the lowest
frequencies
Fully
Direct-Coupled, quasi-complementary output circuit for low distortion and long
term durability.
Specifications
Power
Output:
70 watts
minimum sine wave continuous average power output, per channel, both channels
operating into 8 Ω load impedance which
is 23,7 volts RMS across 8 Ω
40 watts
minimum sine wave continuous average power output, per channel, both channels
operating into 16Ω load impedance which
is 25,3 volts RMS across 16 Ω
Output Load
Impedance: 8 Ω or 16 Ω
Rated Power
Band: 20 Hz to 20,000 Hz
Total
Harmonic Distortion: 0,2% maximum
harmonic distortion at any power level from 250 milliwatts to rated power per
channel from 20 Hz to 20,000 Hz , both channels operating
Intermodulation
Distortion: 0,2% (if instantaneous peak
power output is twice rated contiuous average power or less per channel with
both channels operating for any combination of frequencies 20 Hz to 20 kHz)
Frequency
Response: 20 Hz to 20,000 Hz (+0 -,05 dB
at rated power)
Damping
Factor: 50 at 8 Ω , 100 at 16 Ω
Noise and
Hum:
Power
Amplifier: 95 dB below rated output
Aux, Tape,
Tuner: 90 dB below rated output
Phono Input,
Tape Hd: 76 dB below 10 mV input
Input
Sensitivity and Impedance:
Power
Amplifier: 3 volts / 100,000 Ω
Phono 1 and
Phono 2 : 2,5 mv at 1000 Hz / 47,000 Ω
Tape head
: 3 mV / 47,000 Ω
Tape, Aux,
Tuner : 300 mv / 250,000 Ω
Bass
Controls: +16 dB to -16 dB at 20 Hz
Treble
Control : +16 dB to -16 dB at 20 kHz
LF
Filter: Active filter, 12 dB per octave
rolloff below 50 Hz ; 20 dB down at 20 Hz
HF
Filter: Active filter, 12 dB per octave
rolloff above 7000 Hz ; 20 dB down at 20,000 Hz
Semiconductors: 36 Silicon Transitors; 22 Silicon Rectifirs
and Diodes; 2 Silicon Bilateral Switches; 2 Triac
Power
Requirements: 120 volts, 50/60 Hz, 50
watts at zero signal output, 380 watts at rated output
Dimensions:
Front panel
[W x H]: 406 mm (16") x 138 mm
(5-7/16")
Chassis [W x
D]: 381 mm (15") x 330 mm
(13") Including Panloc shelf and back panel conectors. Knob clearance
required is 38 mm (1-1/2") in front of mounting panel
Weight: 15,43 kg (34 pounds) net
Finish:
Front panel
: Anodized gold and black with special
gold/teal panel nomenclature illumination
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