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2. Place the speakers in the center of the room.
3. Depress the MONO
pushswitch
and playa
re-
cord (or radio or tape) with strong bass tones
at a low volume
level. Center the BALANCE
control.
4. Position
the speakers about
six inches apart,
face-to-face.
Listen,
particularly
to the appar-
ent loudness of the bass tones.
5. Next, turn off all power, but do not disturb the
VOLUME
or BALANCE
settings.
Reverse the
connections
on the right speaker only. Turn on
the power
and listen again. If the bass tones
now seem louder than in (3), you have correct-
ed the phasing between
the speakers.
If the
bass notes
now
sound
softer,
turn
off
the
power and reconnect
the speakers as they had
been originally.
6. If an additional
pair of speakers is used along
with
the main speaker system, check phasing
between
the
remote
speakers
and the main
speakers.
Use the BALANCE
control
to play
only
two
speakers
at once,
and
invert
the
wiring
on the remote
speakers as necessary.
Do not change the connections
on the main
speaker system.
7. Once having phased all speakers, you need not
repeat this procedure
in the future
if you now
mark the speaker connections
and/or
cables.
Any method
of coding is satisfactory,
provided
it enables you, in the future,
to duplicate
your
now-correct
hookup
b~tween speakers and am-
plifier.
Use caution when connecting
your Model 2252 to
~ a loudspeaker
with built-in
power supply such as
'an
electrostatic
loudspeaker.
The
"common"
connection
terminal
of such a speaker may' be
capacitively
coupled
to ground
through
its own
power supply.
To protect
the Model 2252 from
distortion
and possible overload,
make sure the
(-)
terminals
of the Model 2252 are connected to
the "common"
terminals
of such a loudspeaker
system.
CAUTION:
NEVER DIRECTLY
CONNECT THE
LOUDSPEAKER
TERMINALS
OF
ONE
CHANNEL
IN
PARALLEL
WITH
THOSE
OF
ANY
OTHER.
ANY RESULTING
DAMAGE
IS NOT
COVERED
UNDER WARRANTY.
NOTE:
Do not use 4 ohm speakers if main and
remote
speakers are to be uSed simu
1-
taneously.
Use 8 or 16 ohm speakers
only.
CONNECTION
TO AC OUTLET
With the front panel POWER pushswitch
"OUT",
plug the line cord into an electrical
outlet supply-
ing the proper voltage.
CAUTION:
DO
NOT
PLUG
YOUR
MODEL
2252
INTO
A
DC
OUTLET,
AS
SERIOUS
DAMAGE
WI LL OCCUR.
CONVENIENCE
OUTLETS
One
UNSWITCHED
and
one SWITCHED
AC
OUTLET
are provided
on the rear panel for pow-
ering associated components
of your system (tape
recorder, record player, etc.).
AC PROTECTOR
FUSE
This feature automatically
disconnects
AC power
in the event of a power source or circuit
overload.
If the POWER
pushswitch
is activated
and the
front
panel fails to illuminate
and no sound is
heard through
the speakers, turn
off the power
and unscrew the fuse holder on the rear panel and
visually
inspect the fuse to see if the internal con-
ducting
filament
has opened.
If so, replace the
fuse with one having the same specifications.
See
"Fuse Replacement",
page 11.
4
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