McIntosh MC-240 stereo power amplifier

Year of manufacture:

1960-1969

Manufactured by:

McIntosh Laboratory Inc, 2 Chambers Street Binghamton, NY

Price when new (in the USA):

$288

Description:

power amplifier

Mono/stereo:

Stereo

Power output:

40 watts RMS per channel, 80 watts mono

Distortion:

0·5% at rated power

Frequency response:

16Hz - 40kHz ± 0.1dB

Hum & noise:

-90dB

Controls:

stereo, twin and mono inputs, twin amp gain , mono gain and balance controls, stereo, twin & mono input switch

Output impedance:

4, 8, 16, 125 and 600

(600

centre tap internally grounded)
2, 4, 8, 16 and 32

(in mono)

Input sensitivity & impedance:

0.5V (in mono or twin amp mode). 2.0V in stereo; 250k

Phase shift:

less than ±6°

Tubes:

4 x 6L6GC/7027A output; 3 x 12AX7; 2 x 12AU7; 2 x 12BH7; solid state rectifier

Dimensions:

17¼ x 10¾ in. x 8 inches (432 x 273 x 203 mm)

Weight:

56 lbs (25.45 kg)

Line voltage:

117/125 volts