Fine Tuning the Subwoofer
The ke y to good subw oofer / speaker integration is
repeated listening, followed by making smal l re-adjust-
m ents of t he s ubwoof er controls. The m ost important
bass tuning functions you will control are the LO W -PASS
FILTE R , followed by t he VOLU M E C O NTR O L set tings
and then PHASE SELECTOR.
The frequency c har t bel ow l ists som e terms co mmo nly
used to describe different bands of the frequency
spectrum . Listen to your system and make adjustments
to achieve a seam less blend between your m ain
speakers and the SW 10 ll or SW 12. Four com m on prob-
lem s are outlined below. Follow the flow char t to correct
these. See the glossary for any terms you are unfam iliar
with.

Frequency Chart

Low Bass Mid Bass U pper Bass Lower Mid Mid U pper MidHigh
Below 50Hz 50Hz-100Hz 100Hz-180Hz 3K and above
180Hz-300Hz 300Hz-700Hz 700Hz-3K
"Boomy"
Too Much
Mid / Upper
Bass

Problem

Solution

Lacks
Low
Bass
Weight
Excessive
Low
Bass
Weight
Lacks
Mid / Upper Bass:
Lean But With
Weight
Fine Tuning Flow Chart
Lower
Low Pass
X-Over
Frequency
Increase
Boundary
EQ
Decrease
Boundary
EQ
Adjust
Subwoofer
Volume
Listen
If this makes
it worse,
try
If the sound
improves
Raise
Low-Pass
Setting
Adjust
Subwoofer
Volume
Adjust
Subwoofer
Phase
Listen
Lower
Subwoofer
Volume
Move
Subwoofer
Closer to
Wall
Move
Subwoofer
Farther
From Wall
Adjust
Subwoofer
Phase
0-90
(Continuously
Add)
Adjust
Subwoofer
Phase
0-90
(Continuously
Add)
Adjust
Subwoofer
Phase
Switch
0-180
Listen Listen
Listen