Specifications

loudness compensation accuracy is dependent
on many variables such as speaker efficiency,
amplifier gain and differences in input level. The
loudness control is continuously variable,
operates independently of the volume control,
and its contour is accurately modeled after the
Fletcher Munson family of "Equal Loudness"
curves.
• HIGH ACCURACY TRACKING
VOLUME CONTROL
The volume control, is a step attenuator which
has tracking accuracy within 1 dB throughout its
entire range. Such extremely accurate matching
is achieved through electronically controlled trim-
ming of the resistance material deposited on
pairs of printed circuits. Tracking accuracy and
quiet performance are permanently maintained.
Use does not affect performance as in ordinary
volume controls.
• TURN-ON TRANSIENT ELIMINATION CIRCUITS
Speaker outputs are connected only after power
supplies and circuits have stabilized eliminating
turn on thumps or clicks.
PERFORMANCE LIMITS and RATINGS
POWER OUTPUT:
100 watts minimum sine wave continuous
average power output, per channel, both channels
operating into 4ohms 20Hz to 20kHz, with no more
than 0.05% total harmonic distortion
75 watts minimum sine wave continuous average
power output, per channel, both channels
operating into 8 ohms 20Hz to 20kHz, with no
more than 0.05% total harmonic distortion.
OUTPUT LOAD IMPEDANCE:
4 ohms, 8 ohms
RATED POWER BAND:
20Hz to 20kHz
TOTAL HARMONIC DISTORTION:
0.05% maximum at any power level from 250
milliwatts to rated power per channel, 20Hz to
20,000Hz, both channels operating
FREQUENCY RESPONSE:
20Hz to 20kHz + 0, -0.5dB at rated power
INTERMODULATION DISTORTION:
0.05% maximum at any power level from 250
milliwatts to rated power per channel both chan-
nels operating for any combination of frequencies
20Hz to20,000Hz
NOISE AND HUM:
Power Amplifier: 100dB IHFA, 95dB unweighted,
below rated output. Tape and Aux Input: 95dB
IHFA, 90dB unweighted below rated output.
Phono Input: 90dB IHFA, 80dB unweighted, below
10mV input
DAMPING FACTOR:
Greater than 30
INPUT SENSITIVITY AND IMPEDANCE:
Power Amplifier: 2.5 volts, 22,000ohms; Tape, Aux-
iliary: 250 millivolts, 100,000ohms; Phono: 2
millivolts, 47,000ohms, 87pF
TAPE OUTPUT LEVEL:
Tuner: 1.0 volts at 100% modulation [FM]; Tape:
250 millivolts with rated input; Phono: 250
millivolts with rated input
PROGRAM EQUALIZER:
± 12dB at 30,150,500,1500,and 10,000Hz
FM
SENSITIVITY:
2mV [11.2dBF] IHF minimum
SIGNAL TO NOISE RATIO:
70dB IHF minimum
HARMONIC DISTORTION:
Mono: 0.18% IHF maximum Stereo: 0.38% IHF
Maximum
FREQUENCY RESPONSE:
20Hz to 15kHz +0, -1dB
CAPTURE RATIO:
1.8dB
SELECTIVITY:
75dB IHF minimum
SPURIOUS REJECTION:
90dB IHF minimum
IMAGE REJECTION:
80dB IHF minimum
STEREO SEPARATION:
45dB minimum at 1kHz
SCA REJECTION:
60dB minimum
AM
SENSITIVITY:
75mV IHF [External antenna]
SIGNAL TO NOISE RATIO:
45dB minimum IHF, 55dB at 100% modulation
HARMONIC DISTORTION:
0.8% maximum at 30% modulation
FREQUENCY RESPONSE:
6 dB down at 3500 Hz
ADJACENT CHANNEL SELECTIVITY:
30dB minimum IHF
IMAGE REJECTION:
65dB minimum, 540kHz to 1600kHz
GENERAL INFORMATION
SEMICONDUCTOR COMPLEMENT:
45 Transistors, 31 Integrated Circuits, 62 Diodes, 1
Silicon Controlled Rectifier
POWER REQUIREMENTS:
120 Volts, 50/60 Hz, 0.6 to 4 amperes (72 to 480
watts)
MECHANICAL INFORMATION
SIZE:
IN CABINET: 18-5/8 inches (47.3cm) wide, 6-1/2 in-
ches (16.5cm) high, 15-1/2 inches (39.4cm) deep.
WITHOUT CABINET: Front panel measures
17-9/16 inches (44.6cm) wide by 5-1/4 inches
(13.3cm) high. Chassis measures 17-1/8 inches
(43.5cm) wide by 4-15/16 inches (12.5cm) high by
13-1/2 inches (34.3cm) deep. Knob and handle
clearance required is 1-1/4 inches (3.2cm) in front
of the mounting surface.
FINISH:
Front panel is clear anodized to produce a brush-
ed satin/silver finish with black trim. Cabinet is
walnut grained vinyl
WEIGHT:
42 pounds (19 kg) net, 56 pounds (25.4 kg) in ship-
ping carton
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