The Fisher 400-C

 Model 400-C Stereo Master Audio Control

Has 16 input jacks and 9 controls for any combination of stereo or monaural uses. Provides for stereo tapes, disc, AM-FM, FM-FM, FM Multiplex and mikes; monaural tapes, disc, Am, Fm, TV sound, Short-wave and mike; recording stereo or monaural with monitoring facilities; and, electronic crossover at 650 cps handling monaural program sources into stereo systems for stereo effects. Four outputs in two pairs for stereo or monaural use.

Twelve stage audio circuit with shielded transformer for hum-free performance.  Four AC outputs for driving other equipment. 

Specifications

Controls:

Input; Equalization; Output Selector; 3-position Rumble Filter; 3-position Loudness Contour; Volume and On-Off; Channel Volume Balance; Separate Bass and Treble and 4 input Level Adjustments.

Type Set:  AC Operated Stereo Amlifier

Frequency Response:  20 Hz - 25,000 Hz (Uniform)

Distortion:  less than 0,15% (for 2 volts output);  0,3%  (for  5 volts)

Hum and Noise:  Better than 85 dB for high level inputs and 2 volts output;  65 dB for 10 mV low level input and 2 volts output

Tube Complement:  4 x ECC83;  2 x 12 AT7;  1 x EZ80

Power Supply:  110 -125 Volts AC, 60 cycles

Power Rating:  32 Watts, .30 Amp At 117 Volts Ac

Dimensions (W x D x H):  15-1/8 x 9 x 4-13/14 inches

Weight:  10 lbs