SPECIFICATIONS
ELECTRICAL SPECIFICATIONS
POWER OUTPUT:
45 RMS watts continuous per channel into 4 ohms
both channels operating.
45 RMS watts continuous per channel into 8 ohms
both channels operating.
30 RMS watts continuous per channel into 16 ohms
both channels operating.
HARMONIC DISTORTION:
Less than 0.25% at rated power output from 20 Hz to
20 kHz, both channels operating. Typical perform-
ance is less than 0.1% at rated power. Distortion de-
creases as output power is reduced.
INTERMODULATION DISTORTION:
Less than 0.25% if instantaneous peak power output
is twice rated power or less per channel with both
channels operating for any combination of frequen-
cies 20 Hz to 20 kHz.
FREQUENCY RESPONSE:
10 Hz to 25 kHz + 0, -0.5 dB at rated power.
8 Hz to 50 kHz + 0, -3.0 dB at rated power.
TOTAL NOISE (INCLUDING POWER AMPLIFER):
High Level Inputs: 75 dB below rated output
Low Level Inputs: 70 dB below 10 mV input; equiva-
lent to less than 3 microvolts at input.
OUTPUT IMPEDANCE:
4. 8, or 16 ohms.
DAMPING FACTOR:
50 with 4 ohms load
100 with 8 ohms load
200 with 16 ohms load
INPUT IMPEDANCE:
AUXILIARY, TAPE. TUNER, and TAPE MONITOR:
250,000 ohms
PHONO 1 and PHONO 2: 47,000 ohms
TAPE HEAD: 500,000 ohms
INPUT SENSITIVITY:
AUXILIARY. TAPE, TUNER, and TAPE MONITOR:
300 mV
PHONO 1 and PHONO 2: 2 mV
TAPE HEAD: 2 mV
TAPE OUTPUT:
300 mV with rated input, 1.4 volts with 10 mV at phono
input.
LEFT PLUS RIGHT OUTPUT:
Adjustable 0 to 6 volts from generator impedance of
5,000 ohms.
BASS CONTROLS:
±18 dB at 20 Hz, with friction clutch for independent
adjustment of each channel.
TREBLE CONTROLS:
± 18 dB at 20,000 Hz with friction clutch for inde-
pendent adjustment of each channel.
HF FILTER:
Flat, or 5,000 Hz cutoff. 12 dB per octave.
LF FILTER:
Flat, or 50 Hz cutoff. 12 dB per octave.
POWER REQUIREMENTS:
117 volts. AC. 50-60 Hz. 70 watts at zero signal out-
put, 200 watts at rated output.
SPECIAL FEATURES
COMP (COMPENSATOR) SWITCH:
RIAA or LP phono equalization.
TAPE MONITOR SWITCH:
NORMAL or Tape MONITOR indicator lamp lights in
MONITOR position.
PHASE SWITCH:
Electronic phase inverter. Normal (0°) or reverse
(180°).
SPEAKER SWITCH:
Speakers ON or OFF for headphone listening, indi-
cator lamp lights in SPEAKER OFF position.
LOUDNESS SWITCH:
NORMAL or COMPENSATED.
HEADPHONE JACKS:
Two. for two pairs of low impedance headphones.
INPUT SELECTOR:
6 positions: AUX. TAPE. TUNER, PHONO 1, PHONO
2, TAPE HD.
MODE SELECTOR:
7 positions: L to L and R, R to L and R. STEREO RE-
VERSE, STEREO, MONO (L + R), L + R to L, L+R to R.
SEMICONDUCTOR COMPLEMENT:
23 Silicon Rectifiers and Diodes
34 Silicon Transistors
2 Silicon Bilateral Switches
2 TRIAC
MECHANICAL SPECIFICATIONS
SIZE:
Front panel. 16 inches wide by 5
7
/
16
inches high;
chassis. 15 inches wide by 4½ inches high by 14½
inches deep, including connectors. Clearance in front
of mounting panel including knobs, 1½ inches.
WEIGHT:
25 pounds net, 41 pounds in shipping carton.
FINISH:
Front Panel: Anodized gold and black.
Chassis: Chrome and black.
7
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(60 pages)
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