Home Theater System User Manual
12
5SERgS-ANUAL
PREAMPLIFIER
MAIN
OUTPUTS
L
SUB/LFE OUT
L
R
R
AMPLIFIER
INPUTS
TO FRONT SPEAKERS
If your preamplifi er does 
not have a sub/LFE output, 
you can use “Y” cables to 
send its main outputs to 
both the sub woof er and 
your am pli fi er.
The subwoofer will play 
the low frequency range 
and your front speak ers will 
play the full range.
Although bass is com-
 mon ly dis trib ut ed evenly 
between left and right 
chan nels (L+R bass), 
movie soundtracks often 
contain differential (L-R) 
bass. The opening scene 
in “Top Gun”, for example, 
has loads of L-R bass 
in for ma tion. If this is not 
preserved, the bass in 
these scenes sounds ane-
mic. The Sunfi re Subwoofer 
utilizes dif fer en tial gain on 
the left and right inputs to 
retain both the L+R and 
L-R in for ma tion. There fore, 
sys tems which do not 
have a dedicated sub/LFE 
output should use both 
the left and the right inputs 
as shown, for the great est 
bass impact. 
An alternative connection 
method without using Y cables is shown 
on the next page.
If your preamp/receiver has a dedi-
cated sub/LFE output, then only the Left 
(Mono) input is used, as shown on the 
previous page.
Connections to a preamplifi er using Y cables










