Magnepan DWM - Manual (Page 7)

for the Bass Panel. Each position of the Bass Panel in the room will give a
different frequency response characteristic. This response characteristic
becomes one of your means of contouring the overall response of your system.
Placing the DWM against a side wall or cabinet will increase the coupling and
result in both lower bass response and different midbass response. The same
effect can be achieved by placing the DWM next to the floor-standing model
for mutual bass coupling. Angling the Bass Panel slightly away from the
listener will increase the roll-off of higher frequencies, if desired.
If two Bass Panels are used and there is a midbass peak, the peak can be
reduced by placing the two Bass Panels at different distances relative to the
listener. For example, one Bass Panel 12 inches ahead of the left/right speakers
and the other 12 inches further than the left/right speakers.
Amplifier connection-- If your amplifier doubles in power from 8 ohms to 4
ohmns (or nearly doubles), it is a high-current design. Most amplifiers of this
design can be safely connected in parallel with the DWM--especially if a
resistor is used on the DWM for bass attenuation. If the amplifier used on the
floor-standing models is not a high-current design, a separate amplifier can be
used to drive the DWM.
Level and crossover slope-- If you have a room that is deficient in bass/
midbass, or has a midbass hole in the response, you may find that the full
output of the DWM is desired. However, the addition of bass and midbass is
analogous to adding seasoning to food. Just a little too much seasoning can
ruin the meal. If would be a typical scenario if you find it necessary to
attenuate the output of the DWM after extended listening.
If the Bass Panel is adding too much output in the lower midrange or upper
bass, a 1.4 mh inductor (with low DCR) can be installed in the Attenuation
terminals for a faster roll-off rate. Inductors are available from Magnepan.
Since a power resistor will mostly be needed to attenuate the DWM output,
large gauge speaker wire for the DWM is not needed or recommended. Save
Page of 7 8 Revision-- 10-3-12