Sunfire HRS-12 - Manual (Page 10)

User's Manual
10
Here is a neat trick to find the best
subwoofer location for your room:
1. Start by placing it right on the seat
of your favorite couch or easy chair.
(This method is odd, but it is based
on principles of acoustic physics).
. If the subwoofer is part of a Home
Theater system you can use the
calibration test tone (pink noise)
usually found in the processor/
receiver's setup menu; or you can
simply plug the outputs from a CD
player directly into the subwoofer’s
line-level inputs, remembering to
turn down the volume level on the
subwoofer first, and then play-
ing some of your favorite music
samples containing heavy bass.
. Walk around the room listening.
Stand in all the locations where
you might place the subwoofer. Try
crouching down, particularly in the
corners. Find the place where the
subwoofer’s bass output sounds
the loudest.
4. Turn off the subwoofer and discon-
nect it from the power and from
your processor/receiver or CD
player. Next, install the subwoofer
in the location you have just deter-
mined is best and remake all your
connections.
Although low frequencies are non-di-
rectional, factors such as room reflec-
tions, standing waves, resonance and ab-
sorption will strongly affect your subwoof-
er’s performance. Moving the subwoofer
from one location to another can have a
major effect on the bass response.
Location
Magnetic Fields
Remember to keep the subwoofer
at least two or three feet away from
any TV screen, computer, VCR or
magnetic tapes and discs. This will
reduce the chance of the magnetic fields
upsetting the TV screen or erasing your
magnetic media.
Using two Subwoofers
If you wish to use two subwoofers, the
sound output will double (an increase of
6 dB). Locate the subwoofers with one
in each corner and experiment with the
location and phase control to achieve the
best bass response.
Always drive each subwoofer through
the left line-level input even though you
are driving one subwoofer with a right
channel drive and the other with a left
channel drive. If your preamplifier has a
single sub/LFE output, use a Y cable to
split it into two outputs.