RBH Sound S-10 - Manual (Page 5)

Features
A powered subwoofer is a must-have component for any home theater or audio
system. The performance of your subwoofer can greatly affect the overall
performance of your system. Without a powered subwoofer, the deep bass on your
music CDs and special effects on DVDs may not be heard and/or felt. Think of a
subwoofer as a vital component that adds excitement to your theater or music
experience. The powered subwoofer has its own source of amplification (as opposed
to passive, non-amplified subwoofers which require an additional power amplifier).
Subwoofers can add considerable low-frequency, deep bass performance to any
home theater or audio system.
At the heart of the powered subwoofer is an aluminum cone driver. The driver
material produces enhanced bass definition and accuracy. A powerful magnet,
enhanced suspension and heavy duty voice coil give the driver elevated performance
allowing high output capability and accurate dynamic reproduction.
The powered subwoofer incorporates a class D amplifier with switching power
supply technology, resulting in higher power output, improved bass performance
and maximum energy efficiency.
Variable crossover, adjustable phase control and auto on/off are also used for
convenience and easy integration with other speakers. Audio can be supplied to
the subwoofer by either interconnect (LFE/line level inputs).
Cabinets are constructed from medium density fiberboard because of its inert
properties. The thickness of the front baffle also prevents excess acoustic
radiation. Sophisticated computer modeling and measurement techniques are used
extensively in the powered subwoofer design process.
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