McIntosh C28 Owner's Manual page 15

chine 1 to tape machine 2 or vice versa. They are
mechanically interlocked to accept only one push-
button at the IN position at one time.
LF FILTER SWITCH (Rumble Filter)
Flat or roll-off 12 dB per octave below 50 Hz, down
to 18 dB at 20 Hz
HF FILTER SWITCH (Scratch Filter)
Flat or roll-off 12 dB per octave above 7000 Hz,
down to 18 dB at 20,000 Hz
SPEAKER SWITCHES (Operates with accessory
Main: Switch the MAIN loudspeaker system ON
or OFF without affecting the performance of RE-
MOTE speakers.
Remote: Switch the REMOTE loudspeaker sys-
tem ON or OFF without affecting the performance
of MAIN speakers.
FRONT PANEL TAPE JACKS
Allows connection to input and output of a tape
recorder from the front panel of the C 28. Inserting
plugs into their jacks disconnects the TAPE 2 cir-
cuits from the rear panel of the C 28 and uses the
TAPE 2 facilities for the front panel jacks.
HEADPHONE JACK
For listening with either low or high impedance
dynamic stereo headphones. Power to this jack is
supplied by an amplifier provided in the C 28.
Headphone listening can be accomplished without
the use of an external power amplifier.
SECONDARY CONTROLS
The following controls are located behind the front
panel on top of the C 28 chassis. These controls
are readily accessible by depressing the PANLOC
buttons and sliding the C 28 forward from the
mounting panel.
LOW FREQUENCY TRIM CONTROLS
Permits the increase in output of frequencies be-
low 100 Hz of up to 6 dB to compensate for unequal
speaker response or the unequal influence of room
acoustics.
PHONO 1 AND PHONO 2 LEVEL CONTROLS
Permits variations in the phono input sensitivity of
up to 10 dB. Provides for optimum signal to noise
ratio and proper balance of the channels of the
phono cartridge.
OUTPUT LEVEL CONTROLS
Permits the balance of the entire system to be
conveniently preset.
HEADPHONE LEVEL CONTROLS
Adjusts the level and balance of the headphone/
line output.
POWER AMPLIFIER ON-OFF SWITCH
Controls power to the green 120 volt Power Ampli-
speaker control relay)
fier receptacles. Allows the power amplifiers to be
turned off when not needed for headphone listen-
ing, etc.
MECHANICAL INFORMATION
SIZE: Front panel measures 16 inches wide (40.64
cm) by 5-7/16 inches deep (13.81 cm). Chassis
measures 15 inches wide (38.1 cm) by 5 inches
high (12.7 cm) by 13 inches deep (33.02 cm), in-
cluding PANLOC shelf and back panel connectors.
Knob clearance required is 1½ inches (3.81 cm) in
front of the mounting panel.
FINISH: Front panel is anodized gold and black with
special gold/teal nomenclature illumination. Chas-
sis is black.
MOUNTING: Exclusive Mclntosh developed profes-
sional PANLOC
WEIGHT: 25 pounds (11.34 kg) net, 37 pounds (16.78
kg) in shipping carton
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