Connecting the Subwoofer to Digital Home Theater Systems
Digital 5.1, 6.1 and 7.1 home theater electronics dedicate one channel (the ".1") to reproduce the special
low-frequency (LFE) information (such as explosions and thunder) contained in digitally-encoded soundtracks.
Select "subwoofer-yes" from your receiver's set-up menu. Connected this way, the receiver's amplifier is relieved
of having to reproduce the difficult low bass signals that can drive the receiver into audible distortion.
Use an RCA cable (not included), as shown, to connect your digital receiver's subwoofer output to the subwoofer.
Connect the other end to the XB4 jack labeled "bypass crossover control" underneath "line level in".
XB4
®
Powered Subwoofer featuring BassTrac
* use crossover control: removes high
frequencies; use with sources lacking suitable
filtering (most products without Dolby Digital
or THX), or where manual control is desired.
** bypass crossover control: direct to woofer;
use with sources having built-in crossover
controls or bass management (most products
with Dolby Digital or THX).
CAUTION: Disconnect supply cord
before replacing fuse. For continued
protection against risk of fire, replace only
with same type fuse.
ATTENTION: Debrancher avant de
remplacer le fusible. Utiliser un fusible de
rechange de même type.
120V ~ 60Hz 1.25A
T 1.5A L 250V
If you do not wish to run RCA cables to your subwoofer, you may use speaker wire to connect the subwoofer in
parallel with your main speakers (see diagram below). The subwoofer does not present any additional load to your
receiver.
Select "subwoofer-no" from your receiver's set-up menu. This sends the LFE signal to the main left and right
speakers, and thus, to the subwoofer. Consult your receiver's owner's manual for more details.
When using the speaker wire hookup, 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.
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.
XB4
Powered Subwoofer Featuring BassTrac
®
* use crossover control: removes high
frequencies; use with sources lacking suitable
filtering (most products without Dolby Digital
or THX), or where manual control is desired.
** bypass crossover control: direct to woofer;
use with sources having built-in crossover
controls or bass management (most products
with Dolby Digital or THX).
CAUTION: Disconnect supply cord
before replacing fuse. For continued
protection against risk of fire, replace only
with same type fuse.
ATTENTION: Debrancher avant de
remplacer le fusible. Utiliser un fusible de
rechange de même type.
120V ~ 60Hz 1.25A
T 1.5A L 250V
power
line level in
100
125
use
bypass
crossover
crossover
control *
control **
0 º
75
150
180 º
crossover
(Hz)
polarity
speaker level in
left
right
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
C
US
AVIS: RISQUE DE CHOC ELECTRIQUE-NE PAS OUVRIR
power
line level in
100
125
use
bypass
crossover
crossover
control *
control **
0 º
75
150
180 º
crossover
(Hz)
polarity
speaker level in
left
right
CAUTION
RISK OF ELECTRIC SHOCK
DO NO T OPEN
C
US
AVIS: RISQUE DE CHOC ELECTRIQUE-NE PAS OUVRIR
5
subwoofer out
back of receiver
to main speakers
right
left
front
speakers
R
L
FRONT A
SPEAKER SYSTEMS
FRONT A OR B, CENTER, SURR, SURR BACK
: MINIMUM 6 OHMS
FRONT A AND B : MINIMUM 8 OHMS
back of receiver
Be sure to connect + to + (red) and – to – (black ).
R
L
R
L
FRONT B
CENTER
SURROUND