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FREQUENCY RESPONSE CURVES FOR

AUDIO COMPENSATOR, MODEL  C - 4

M

C

INTOSH LABORATORY, INC

4-20-55

NOTE: ORTHOPHONIC, R.I.A.A.,NEW AES,

AND NEW NART8 ARE IDENTICAL

CURVES.

FREQUENCY

RESPONSE BELOW 20 CYCLES

FREQUENCY

COMPENSATION CONTROL

(PHONO CHANNELS ONLY)

BASS

TREBLE

FREQUENCY

TONE CONTROLS

- 6 -

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