MECHANICAL SPECIFICATIONS
Dimensions
Chassis: 14½ inches wide; 4¾ inches high;
12 inches deep including connectors.
Front Panel: 15¾ inches wide; 5
1
/
8
inches
high
Front Panel Mounting Space Required: 16
3
/
8
inches wide; 5¼ inches high
Weight
Chassis: 15 pounds
Shipping Weight: 25 pounds
Finish
Anodized gold and black (front panel)
ELECTRICAL SPECIFICATIONS
Power Requirements
117 volts, ac, 50/60 cycles, 30 watts
Input Sensitivity and Input Impedance
Auxiliary: 0.25 volt; 250,000 ohms
Tape: 0.25 volt; 250,000 ohms
Tuner 1: 0.25 volt; 250,000 ohms
Tuner 2: 0.25 volt; 250,000 ohms
Phono 1: 2 millivolts; 47,000 ohms
Phono 2: Same as phono 1
Tape Head: 2 millivolts; 1 megohm
Tape Compare (Monitor): 0.25 volt; 250,000
ohms
Microphone: 2.5 millivolts; 1 megohm
Frequency Response
± 0.5 db; 20 to 20,000 cycles
Distortion
Less than 0.2% at rated output, 20 to 20,000
cycles
Hum and Noise
High-level inputs: 85 db below rated output
Low-level inputs: less than 2 microvolts at
input terminals
Main Output
2.5 volts with rated input
2 output jacks in parallel for each channel
Tape Output
0.25 volt with rated input
1 output jack for each channel
Left Plus Right Output
1 volt from generator impedance of 25,000
ohms
Voltage Amplification
Low-level inputs to Main Output: 1,000 to 1
(60db) at 1000 cycles
Low-level inputs to Tape Output: 100 to 1
(40 db) at 1000 cycles
High-level inputs to Main Output: 10 to 1
(20 db)
High-level inputs to TapeOutput: 1 to 1 (0 db)
Tape Compare (Monitor) input to
Main Output: 10 to 1 (20 db)
A-C Auxiliary Outlets
1 unswitched for tape machine or turntable,
colored Red
4 switched, colored Black
FRONT PANEL FACILITIES
Figure 1. C11 Front Panel
2