SETTING YOUR CONTROLS...
a stereo system
ADJUSTING PHASE
1 Set the MONO STEREO switch to MONO.
The performance and enjoyment of your stereo system increases when the sys-
tem is balanced. There are two factors in balancing. One is unequal program
loudness on the left and right channels of the program source. The other is basic
system balance. The control marked BALANCE on the MAC 1700 is used to cor-
rect both of these problems.
First balance the system. There are many things which affect the balance of
your system: room acoustics, furniture placement, room shape, small differences
in loudspeakers, etc.
TO BALANCE SYSTEM
1 Set the stereo mono switch to MONO.
2 Play a familiar recording.
3 Turn the balance control to the 1 2 o'clock position.
4 While the program is playing, stand in the center of the two
loudspeakers. Listen to see if there is a difference in loudness
from either speaker. The sound should come from a point mid-
way between the speakers. If it does not, turn the control to-
ward the speaker that is not as loud as the other. Do this until
you find the point where the sound comes from the mid-point
between the speakers. If it is impossible to get the sound to
come from the mid-point go on to ADJUSTING PHASE. After
you have adjusted the phase you can start the balancing pro-
cedure over again.
2 Stand about 10 feet in front of and mid way between your
loudspeakers. The sound should appear to be directly in front
of you. Have someone switch the leads on one speaker. Be sure
to switch the leads on ONE speaker only. If the sound is not
directly in front of you reverse the leads on one loudspeaker.
When the sound comes from the mid-point between the
speakers they are in phase.
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