Critical Bass Management Settings; Dual Subwoofer Connections - Definitive Technology ProSub 800 Owner's Manual

smoothes out the peaks and dips which result from the eigenmodes in your
room. Two subwoofers couple much better to the air in your room (four
times better) and of course offer double the power. In addition, some
state-of-the-art home theater installations have begun to use a sepa-
rate subwoofer hooked up to the rear (surround) channels and we
recommend this for the absolute ultimate in performance.
Dual Subwoofer Connections
When hooking up a stereo pair of subwoofers, wiring is quite similar
to traditional high level connections. Here, instead of running both speaker
cables from your receiver or amplifier to the left and right high level
input terminals on the subwoofer, you will run the left channel to the left
channel subwoofer and the right channel to the right channel subwoofer.
Again, take care to make red to red
("+")
and black to black ("-") terminal
connections.
Don't worry that on your left subwoofer the right channel terminals
will be empty and that on the right channel subwoofer the left channel
terminals will be empty-both channels are combined at the subwoofer's
input stage. There is a possibility that with this type of wiring you may
need to increase your gain a little bit for proper balance.
A dual subwoofer system using low level connections is equally
simple: just put a Y connector on your LFE output and run one cable to
each subwoofer.
Critical Bass Management Settings
Your receiver or decoder has a bass management system which
ABSOLUTELY must be set for you to get proper performance from
your system. This is not something that is subtle in its importance. It is
absolutely critical. In general if you are setting up a ProCinema System
using our ProSubs, ProMonitors and ProCenters, follow these simple
instructions:
• If you are hooking up the sub with the low level LFE connection,
set your receiver/decoder bass management to "Sub - Yes" and set
left main, right main, center, left rear and right rear to "Small."
• If you have a choice of crossover frequency, choose the highest
one available.
• If you use a speaker level connection where you run the speaker
wire from the receiver to the sub and then from the sub to the left
and right mains, set "Sub - No," left main and right main to
"Large," and center, left and right rear to "Small."
• Also make sure you properly set the channel balance as outlined
in your receiver/decoder manual. There is also more detailed
information in your ProMonitor manual.