Specifications

High Level to Tape: 0dB.
High Level to Main: 20dB.
EQUALIZER CONTROLS
Variable 12dB boost to 12dB cut at 30, 150, 500,
1500, and 10,000Hz.
MONITOR AMPLIFIER SECTION
CONTINUOUS AVERAGE POWER OUTPUT
20 Watts per channel into 8 ohms from 20Hz to
20,000Hz at .005% maximum harmonic distortion.
FREQUENCY RESPONSE
+ 0-0.25dB from 20Hz to 20,000Hz
SENSITIVITY
750mV for rated output (170mV IHF), input
impedance is 27K ohms.
SIGNAL TO NOISE RATIO. A-WEIGHTED
100dB below rated output (87dB IHF)
AC POWER OUTPUTS
4 Switched for accessories, and 1 unswitched.
POWER REQUIREMENTS
120 Volts, 50/60Hz, 25 to 85 watts.
MECHANICAL INFORMATION
SIZE
Front panel measures 17-1/2 inches (44.4 cm) wide,
by 5-3/8 inches (13.7 cm) high. Depth behind front
panel is 17-1/2 inches (44.5 cm) including clearance
for connectors. Knob clearance required in front of the
mounting panel is 3/4 inches (1.9 cm).
FINISH
The front panel is glass with gold/teal nomenclature
illumination. The chassis is black.
WEIGHT
23 pounds (10.5 kg) net, 35 pounds (15.9 kg) in
shipping carton.
FRONT PANEL CONTROLS
The glass front panel contains 9 single shaft rotary
controls and 2 dual shaft concentric controls. At the
bottom of the glass there are 8 push buttons and a
HEADPHONE jack.
EQUALIZER FREQUENCY CONTROLS
Each of the five EQUALIZER FREQUENCY controls
raises or lowers the amplitude of a band of frequencies
centered on the frequency marked above the control.
Both left and right channels are affected. The center,
or flat position of the control has a detent for easy
reference. In the center or detent position, the entire
circuit for that control is removed from the program
circuit by grounding the control electronically. The
result is the "straight wire with gain" or the flexibility
of complete musical balancing to your taste.
INPUT SELECTORS
Two input selector switches are provided. Each
switch has eight positions. The RECORD switch selects
which program source is fed to the TAPE OUT jacks.
The LISTEN switch selects the program source that
feeds the power amp and speakers. This allows one
to RECORD one program while LISTENING to another.
LINE, PHONO/AUX, CD1, CD2, TUNER, TAPE 1,
TAPE 2 and TAPE 3 are the input program sources.
VOLUME
A precision VOLUME control is provided. Left and
right sections are electronically trimmed for superior
tracking over the operating range.
MODE SELECTOR
The MODE SELECTOR allows you to identify each
stereo channel, create monophonic program material,
and direct program material to one channel or the other.
The MODE SELECTOR operates only in the LISTEN
program line.
It controls the program in seven ways:
L TO L&R: Connects the left input to both left and right
output circuits.
R to L&R: Connects the right input to both left &
right output circuits.
STEREO REV: Connects the left input to the right
output circuit and the right input to the left output
circuit.
STEREO: Connects the left input to the left output
circuit and the right input to the right output circuit.
Use the STEREO position for normal listening.
MONO (L + R): Adds the left to the right input and
C40 Product Preview Page 3
MclNTOSH LABORATORY INC., 2 CHAMBERS STREET, BINGHAMTON, NEW YORK 13903