McIntosh C20 Owners Manual

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lNSTRUBTIflN MANUAL

McINTOSH MODEL 020
STEREO COMPENSATORS

Serial No. HOOI and Above

M¢INTOSH LABORATORY, INC
2 Chambers 5!. Binghamvon, N. Y.
U.$.A.

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Power Source

Output

INSTRUCTIONAL MANUAL
McINTCSI-I C20
STEREO COMPENSATOR

Input Sensitivity and Impedance

Frequency Response
Hum and Noise Level

Sine

wash

CONTROL
Inputs Selector
Volume

Aural Comparator

Bus and Treble Tone

Rumble Filter

Record Compensator
Bus-Treble

Mode Selector
Belance

Phase

HF Cutoff Filter

ELECTRICAL AND MECHANICAL SPECIFICATIONS

110 VAC; 35 Watts

Main: 2.5 volts with rated input
Tape: .25 volts with rated input

Tape AUX and Tuner: .25V., 470K
Phono: XTAL 0.1V., Very high
Low 2 MV., 47K

High 10 MV., 47K

:t: .5 DB 20 to 20,0)

'Iopemd'lunerzliewhtonaodbbelowoutput

Hit: and Phone: Lees then 2 microvolts at input termi-
nah (-115dbm)

Chords M 1/4" wide; 4 m- high; 12" deep
mm Panel 1-4 3/4! wide :4- 3/4" high

17 Pounds

IRW PANEL 03111013

INPUTS
AFFECTED

fig:

All

All

Phone & Tape Head

All
All

is:

PURPOSE
Select desired sound source
Control sound level

Produce loudness contours to compensate for human
ear response (Fletcher-Mum effect)

Continuously variable control of low and high fre-
quencies

Reduce very low frequency disturbances such as
rumble" and "wow"

Provide frequency compensation for phonograph record-
ings or tape heads

Select stereo or monophonic operation
Balance inequalities in eource material on stereo

Correct phase in source material

Remove unwanted high frequency unites