McIntosh C8 Instruction Manual

Audio compensators

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INSTRUCTION MANUAL

MclNTOSH MODEL C-8 and C-8P

AUDIO COMPENSATORS

McINTOSH LABORATORY, INC.

320 Water St.

Binghamton, N. Y.

U.S.A.

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Summary of Contents for McIntosh C8

Page 1 INSTRUCTION MANUAL MclNTOSH MODEL C-8 and C-8P AUDIO COMPENSATORS McINTOSH LABORATORY, INC. 320 Water St. Binghamton, N. Y. U.S.A.
Page 2 - 1 - INSTRUCTION MANUAL McINTOSH MODEL C-8 and C-8P AUDIO COMPENSATORS The McIntosh Audio Compensator is a complete control unit for professional or home entertainment systems. The Model C-8 derives its power from any McIntosh power amplifier: the Model C-8P is self-powered.
Page 3 UNIT CABLE" on C-8P. Connect audio cable provided between RETMA pin jack labeled "MAIN OUTPUT" on C-8P and 2.5V input of power amplifier. (Socket labeled "PRE-AMP INPUT" on McIntosh power amplifiers.) The Audio Compensator delivers 2.5 volts of audio signal at full output.
Page 4 - 3 - INPUT CONNECTING PROCEDURE The inherent hum and noise voltages applied to the input of the Audio Compensator are -110 DBM, or less than 3 microvolts. To avoid lowering the sig- nal to hum ratio of the Audio Compensator, by adding hum voltages to the input, extreme care must be taken in its installation.
Page 5: Output Connections
"INTER-UNIT CABLE" between pins #1 and #2 (pin #1 is ground), and at the RETMA pin jack labeled "MAIN OUTPUT". The inter-unit cable connecting the C-8 to any McIntosh power amplifier uses the octal socket output. The pin jack output may be used for driving a second power amplifier if so desired.
Page 6 - 5 - TYPICAL INSTALLATION AUDIO COMPENSATOR, C-8 TYPICAL INSTALLATION AUDIO COMPENSATOR, C-8P (SELF POWERED)
Page 7 10 MV. Low impedance microphones in conjunction with an input transformer, such as McIntosh M-107, may be used on this channel. Channels 1, 2 and 3 provide flat amplification from 20 to 20, 000 cycles. All...
Page 8 - 7 - front panel controls are effective, with the exception of the Bass Compensation switches, and may be used to alter the response as desired. Channel 4: Channel 4 is equalized for use with high level magnetic cartridges delivering 30 MV of signal.
Page 9 McINTOSH LABORATORY INC. 320 Water Street Binghamton, N.Y., U.S.A. ELECTRICAL AND MECHANICAL SPECIFICATIONS Power Source C-8: Any McIntosh Power Amplifier C-8P: Self-powered Output Main: 2. 5 volts Auxiliary: 1 volt Input level Channels 1 & 2: 70 MV-20 volts...
Page 10 - 9 -...
Page 11 - 10 - VOLTAGE AND RESISTANCE CHART Resistances measured to ground with pin #4 of inter-unit cable socket shorted to pin #1 D.C. Voltages measured with VTVM to ground using D-8 power supply. Signal voltage measured with all controls in flat position, 1000 cycle signal of 10 MV in channel 3, volume control fully on, and with a VTVM.
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C-8p