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Powered Subwoofer
F
eaturing BassTrac
®
XB6
CAUTION: Disconnect supply cord
b
efore replacing fuse. For continued
p
rotection against risk of fire, replace only
w
ith same type fuse.
A
TTENTION: Debrancher avant de
r
emplacer le fusible. Utiliser un fusible de
r
echange de même type.
* use crossover control: removes high
frequencies; use with sources lacking suitable
f
iltering (most products without Dolby Digital
or DTS), or where manual control is desired.
** bypass crossover control: direct to woofer;
use with sources having built-in crossover
c
ontrols or bass management (most products
with Dolby Digital or DTS).
T 2.5A L 250V
on
off
p
ower
CAUTION
R
ISK OF ELECTRIC SHOCK
DO NOT OPEN
AVIS: RISQUE DE CHOC ELECTRIQUE-NE PAS OUVRIR
l
eft right
speaker level in
5
0
80 120
1
50
c
rossover (Hz)
p
ower indicator
0º
1
80º
p
olarity
u
se
c
rossover
c
ontrol *
b
ypass
crossover
c
ontrol **
l
ine level in
p
ower mode
on
a
uto
Use only with a 250V fuse
Employer uniquement avec
un fusible de 250V
Use only with a 250V fuse
Employer uniquement avec
un fusible de 250V
6
Connecting the Subwoofer to Stereo or Dolby
®
Pro Logic
®
Systems
For stereo or Dolby Pro Logic systems, the easiest method is to use the same speaker wire connections as shown on page 5.
You may also use the “sub out” connection from your receiver to the input on the subwoofer marked “use crossover con-
trol.” When using speaker wire or the
“
use crossover control” input, the subwoofer’s built-in crossover is engaged. As a
starting point, set the crossover control on the subwoofer about 10Hz higher than the lower limit of your main speakers’
bass response (for Boston Acoustics front speakers, refer to the included “Optimal Crossover Settings…”sheet).
Fine-tune the crossover setting by ear for the smoothest blend with your main speakers. The best setting of the crossover
control will depend on speaker placement and personal preference.
back of receiver
subwoofer out
50
80 120
150
crossover (Hz)
0º
180º
polarity
on
off
power
Main power switch
Volume (on top panel)
Adjusts the sound level of
the subwoofer. A typical set-
ting is around 11 o’clock, as
shown.
Cr
ossover (Hz)
Polarity (0° or 180°)
Completely turns all
power to the amplifier
either
on or of
f
and over
-
rides the
power mode
switch. This switch must
be turned on before
setting the power mode
switch (see next page).
Adjusts the frequency of
the lowpass filter for the
subwoofer. This control is
inactive when using the
“bypass cr
ossover contr
ol”
input jack.
Selects r
egular (0°) or inverted
(180°) polarity for the sub-
woofer. Set this switch to pro-
vide the fullest, most dynamic
bass. The effect of phase will
be most audible on low-fre-
quency per
cussion instr
uments
or music with a continuously
r
epeating bass line.