Definitive Technology PowerField ProSub 1000 Owner's Manual page 6

bass output when using full range main speakers, run the main speakers
full range by hooking them up directly to the amp. In many systems, if
your speakers are true full range systems, you may find that you get a
more satisfying sound by running the speakers full-range and crossing
your subwoofer in fairly low (40-70 Hz). On the other hand, if you find
that you are overdriving your main speakers, you will clearly be able to
play your system louder by using the built-in high pass crossover for
your main speakers.
AMPLIFIER OR RECEIVER
The Advantages of Multiple Subwoofers
Definitive's ProSub subwoofers are engineered to be used singly or in
pairs. With a single subwoofer, both left and right signals are sent to the
subwoofer wherein they are combined via the electronic crossover into
one composite signal. With two subwoofers, the left and right low fre-
quency signals can be reproduced by their own individual subwoofers or
two subwoofers can be just doubled up on the LFE channel with a Y con-
nector. The use of one subwoofer achieves outstanding performance;
however, the addition of a second subwoofer clearly offers the highest
level of performance achievable for both movies and music. The use of
stereo subwoofers smoothes out the peaks and dips which result from the
eigenmodes in your room. Two subwoofers couple much better to the air
6
*NOTE: If you
wish to run your
main speakers
full range with
no low frequency
roll-off, hook
them directly to
the main speaker
output terminals
or your receiver
or amplifier as in
any normal hi-fi
system.