10 Specifications are subject to change without notice
PLACING YOUR SUBWOOFER(S)
Single Subwoofer Setup
This is a GOOD setup. The subharmonic
frequencies (black arrow) always move
towards the sub in the single sub setup
while the lows, mids, and highs (gray
arrow) follow the action.
Placing the subwoofer in the corner of
the room will produce a more boomy
effect, often preferred for movies and
sound tracks. For a music application,
place the subwoofer as show above or
against the front wall, about a third of
the room width.
The black arrows rep-
resent the sub-har-
monic frequencies
The gray arrows rep-
resent the lows, mids,
and highs as they follow the action.
The best response is achieved when the
subharmonic frequencies are dynami-
cally synchronized with the rest of the
audio system, the black and gray arrows
are identical.
You often hear the term “subwoofers
are non-directional.” This is not true. It
is harder to choose subwoofer place-
ment when low frequencies are crossed.
The wider the room, the more direc-
tional the subwoofer. The easiest solu-
tion is to use two (2) subwoofers and
feed a mono signal to both and place
them in front, one on the left and an-
other on the right.
While having two (2) subs is better than
one, the MONO signal that drives those
subs keeps them from projecting the
three dimensional images in the sub-
harmonics. Using two (2) subwoofers
allows you to cross the subs up to
250Hz sound quality, imaging and stag-
ing. In some applications, you might
have small front speakers or planar
speakers. The two front-subwoofer
system is an excellent solution to planar
speakers’ low frequency response early
roll off from 150Hz on down. When
placing these subwoofers in close prox-
imity to the stereo satellite, the subs
will enhance low frequency extension.
It will be better to have a stereo sub-
woofer to help in the lower bass notes
and their placement.
Suppose you have only one (1) sub-
woofer in the room and it is placed on
the right side of the room. If a bass gui-
tar player was standing on the left side
of the stage and played a EE note (42Hz),
then the sub will also respond to that
from the right side of the room and
completely destroy the stage.
You will see illustrations showing the
two (2) different suggested setups. In
each of them, note the breakaway and
the image separation represented by
the black and gray arrows.
