The Mcintosh
Model MC-60 is a 60 watt high fidelity power amplifier designed for home
entertainment systems and professional applications where high power and
distortion free performance is required. The Model MC-60, like all other
McIntosh power amplifiers. Uses the exclusive McIntosh high efficiency output
circuit and bifilar output transformer to obtain the high standard of
performance found in this amplifier.
Some of the
more important characteristics of the amplifier are less than 1/3% harmonic
distortion at any power output up to 60 watts and at any frequency in the audio
spectrum, 20 to 20,000 cps; less than 1/2% intermodulation distortion for all
power levels up to 120 instantaneous peak watts; and noise and hum level 90 dB
or more below the rated output level.
The MC-60
has two high impedance inputs and many be operated from any signal source
deliviring 0,5 volts or more, or directly from a McIntosh Audio Compensator or
pre-Amplifier such as the Models C-4,
C-8, C-104 or C-108.
Output
impedances of 4, 8 and 16 ohms are provided for direct connection to
loudsapeakers. An additional 600 Ω output is present for use with lines.
Specifications
Power
Output: 60 watts continuous
Input Level:
Input 1
: 0,5 volts to 30 volts, with gain
control
Input 2
: 2,5 volts (for use with McIntosh Audio
Compensators and pre-Amp)
Frequency
Range:
20 to 30,000
Hz ±0,1 dB at 60 watts output
16 to 60,000
Hz ±0,5 dB at 60 watts output
10 to
1000,000 Hz ±1,0 dB at 30 watts output
Total
Harmonic Distortion: less than 1/3% at
60 watts output or less, 20 to 20,000 Hz
Intermodulation
Distortion: less than 1.2% if
instentaneous peak power is below 120 watts
Impulse
Distortion: Negligible
Noise and
Hum level: 90 dB or more below rated
output
Damping
Factor: 15 or better for 4, 8 and 16 Ω
output, 20 for 600 Ω
Input
Impedance:
0,5 meg for
0,5 volt input
0,13 meg for
2,5 volt input
20 cycles to
40,000 cycles
Output
Impedance:
4, 8, 16 and
600 ohms (600 ohmis balanced to ground)
Phase
Shift: ±8° 20- 20,000 Hz
Tube
Complement:
Rectifier
: 2-5U4GA
Pre-Amp
: 12 AX7
Phase
Inverter : 12AU7
Voltage Amp
: 12BH7
Driver :
12AX7
Output : 2-6550
Dimensions
(W x H x D): 14" x 10" x
8"
Weight: 41 pounds net
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