AUTOMATIC POWER TURN
ON/TURN OFF
Power to the entire
stereo system can be controlled from either the front panel power switch or the
turntable's power switch. A current sensing relay connected to the turntable AC
power outlets is controlled by the turntable power switch. The relay, in turn
controls the AC power to the remainder of the system. Sensitivity of the
circuit is adjustable to match the current consumption of your turntable.
POWER GUARD
INDICATOR AND PROTECTION CIRCUIT
Loudspeakers are
protected from burnout by the Power Guard circuit and also by other circuits
that instantaneously disconnect the speakers in the event of the presence of DC
on the output.
Two power guard
indicators indicate when the power amplifier has reached full output. At this
point the power guard circuit begins to control amplification dynamically so
that you will not hear the harsh distorted sound of square wave clipping. In
addition your speakers are protected from burnout.
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 trimming 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.
FIVE BAND TONE
SHAPING CONTROLS IN EITHER THE RECORD OR LISTEN CIRCUITS
Five separate
controls permit individual musical spectra shaping to satisfy personal
preference or program limitations. There is 12 dB plus or minus control at
center frequencies of 30, 150, 1.500 and 10,000 Hz. In the center (detent)
position the tone shaping circuits are not active.
ACTIVE LOUDNESS
CONTROL
Loudness controls
typically are simple, passive circuits connected to a portion of the rotation
range of the volume control. As a consequence,
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.
SPEAKER SWITCHES FOR
THREE SETS OF SPEAKERS
Three sets of
loudspeakers may be used one at a time, two together, or all three
simultaneously.
DUAL TAPE MONITOR
AND TAPE COPY SWITCHES
Two tape recorders
can record simultaneously from the program being listened to or you may record
from one to the other without interfering with the "Listen" program.
SPECIFICATIONS
POWER OUTPUT:
100 watts minimum
sine wave continuous average power output, per channel, both channels operating
into 4 ohms 20 Hz to 20 kHz, with no more than 0.05% THD
75 watts minimum
sine wave continuous average power output, per channel, both channels operating
into 8 ohms 20 Hz to 20 kHz, with no more than 0.05% THD.
OUTPUT LOAD
IMPEDANCE: 4 ohms, 8 ohms
RATED POWER
BAND: 20 Hz to 20 kHz
TOTAL HARMONIC
DISTORTION: 0.05% maximum at any power
level from 250 milliwatts to rated power per channel, 20 Hz to 20,000 Hz, both
channels operating
FREQUENCY
RESPONSE: 20 Hz to 20 kHz + 0, -0.5 dB at rated power
INTERMODULATION
DISTORTION: 0.05% maximum at any power
level from 250 milliwatts to rated power per channel both channels operating
for any combination of frequencies 20 Hz to20,000 Hz
NOISE AND HUM:
Power Amplifier
: 100 dB IHFA, 95 dB unweighted, below
rated output.
Tape and Aux Input
: 95 dB IHFA, 90 dB unweighted below
rated output.
Phono Input : 90 dB IHFA, 80 dB unweighted, below 10 mV
input
DAMPING FACTOR: Greater than 30
INPUT SENSITIVITY
AND IMPEDANCE:
Power Amplifier
: 2.5 volts, 22,000 ohms;
Tape, Auxiliary
: 250 millivolts, 100,000 ohms;
Phono: 2
millivolts, 47,000 ohms, 87 pF
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: ±12 dB at 30, 150, 500, 1500,
and 10,000 Hz
FM SECTION
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: 20 Hz to 15 kHz, +0, -1 dB
CAPTURE RATIO: 1.8 dB
SELECTIVITY: 75 dB IHF minimum
SPURIOUS
REJECTION: 90 dB IHF minimum
IMAGE
REJECTION: 80 dB IHF minimum
STEREO
SEPARATION: 45 dB minimum at 1 kHz
SCA REJECTION: 60 dB minimum
AM SECTION
SENSITIVITY: 75 mV IHF [External antenna]
SIGNAL TO NOISE
RATIO: 45 dB minimum IHF, 55 dB at 100%
modulation
HARMONIC
DISTORTION: 0.8% maximum at 30%
modulation
FREQUENCY
RESPONSE: 6 dB down at 3500 Hz
ADJACENT CHANNEL
SELECTIVITY: 30 dB minimum IHF
IMAGE
REJECTION: 65 dB minimum, 540 kHz to
1600 kHz
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
DIMENSIONS (W x H x
D):
IN CABINET: 473 x
165 x 394 mm (18-5/8 x 6-1/2 x 15-1/2
inches)
WITHOUT CABINET:
Front panel
measures 446 x 133 mm (17-9/16 x 5-1/4
inches)
Chassis
measures 435 x 125 x 343 mm (17-1/8 x
4-15/16 x 13-1/2 inches)
Knob and handle
clearance required is 32 mm (1-1/4
inches) in front of the mounting surface.
FINISH:
Front panel is clear
anodized to produce a brushed satin/silver finish with black trim.
Cabinet is walnut
grained vinyl
WEIGHT: 19 kg (42 pounds) net, 25,4 kg (56 pounds) in
shipping carton