9
MA6450 Front Panel Controls,
Display, Push-Buttons and Switches
MA6450 Front Panel Controls, Display, Push-
Buttons and Switches
POWER ON/OFF
push-button turns
the MA6450 ON, or
OFF (Standby)
LOUDNESS control
(smaller inner knob)
provides adjustable fre-
quency response con-
toured to compensate
for the behavior of the
human ear at softer lis-
tening levels.
The BALANCE control
(large outer knob) al-
lows you to adjust the
relative volume balance
between channels.
TREBLE control provide
12dB boost or cut with a
flat center position.
BASS control provide
12dB boost or cut with
a flat center position.
VOLUME control allows
you to adjust the listening
level at the output(s)
Input switch selects
which of the five input
sources will appear at
the outputs
MONO push-
button combines
the left and right
channel signals
for Mono opera-
tion at the Main
and speaker out-
puts
Muting LED
lights to indicate
muting is active
POWER GUARD LEDs light
when the amplifier channel
Power Guard Circuit activates
SPEAKERS 1 and 2
push-buttons select one
pair of speakers, or both
pairs simultaneously
Copy tapes from
either of two tape
recorders to the
other
Select tape
playback
from either
of two tape
recorders
METERS indicate power
output of the amplifier
IR (Infra Red) sensor ac-
cepts IR signals directly
from an HR033 Remote
Control
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