Owner`s manual

7
extension, the Force(s) may be the perfect answer. If you own speakers from manufacturers such as
B&W, KEF, Apogee, Quad, Thiel, Magnaplaner, Spica, Celestion, Acoustat, Acoustic Energy, Martin
Logan, Wilson, etc., you’ll find your listening pleasure greatly enhanced with the Force subwoofers.
Should you have more than one Force?
A single Force provides a major and cost-effective improvement for most people in most rooms with
most music. However, there are a number of reasons to consider more than one Force.
-Stereo subwoofers: This is more important if the main speakers used need a rather high
crossover frequency. Some very careful listeners may want stereo subwoofers with a crossover as
low as 85Hz while many others might be more than happy with a single subwoofer crossed over
above 120Hz. Many of the popular 3 piece satellite subwoofer systems in the $500-$1000 range
have crossovers above 160Hz! Some listeners can hear the problems immediately while many
people never notice the problem.
-Increase output levels and lower distortion: Some people with large rooms and/or a need for
higher than average output levels will want to use more than one Force. For large spaces and/or
very high volume requirements any number of Forces can be added to a system. The Force adds
bass power and extension, it takes nothing away from the main system.
-Get smoother in-room response than with a single subwoofer: In some situations, loading the
bass into the room from two or more points can give a better balanced bass throughout the room.
-A third Force may be used for the rear surround channels: The Dolby
tm
standard calls for a
bass roll-off in the rear channels…but Dolby Digital recordings have full-range bass content in the
rear channels. Some film lovers feel that having a subwoofer for the rear channel improves impact
and realism with such films.
-Multiple Force subs may be stacked to yield higher output: Stacking two Force subs will yield
approx. 6db greater output capability than a single sub. A third stacked Force will play 9db louder
than a single, and a fourth stacked Force will yield 12db greater output than a single. For those who
want very high output levels, adding additional Force units may be far more cost effective than the
usual upgrade path of selling and buying new subs.
Installation of the Force(s) in your system:
Placement and Phasing:
-Your Force(s) is a powered subwoofer and will need to be plugged into your household
electrical. If you must use an extension cord, select one that is at least 16 gauge thick.
-Getting the optimum performance from your Force(s) is going to require some careful
listening. Keep in mind the sound you want. Using test instruments, test CDs, etc. can be helpful
but can also be fairly confusing. Low frequency room response testing is a complicated subject and
suffice it to say that inexpensive test equipment used without a lot of experience and understanding
can give very misleading results. We suggest making your final judgements based on how music
sounds to you.