Sony SA-VA100 Operating Instructions Manual page 6

Introduction
Dynamic Bass Roar (DBR) super woofer
system provides theater-like bass sound
To provide a theater-like experience complete with
dynamic bass sounds, this system incorporates the
Super Acoustically-loaded Woofer (SAW) design (see
below) in the left and right front speakers to form a
DBR super woofer system.
Chamber
Drive unit
Main duct
What is the SAW design?
The SAW design features a centrally-positioned woofer
drive unit, two chamber construction, and a long main duct.
Through precision control of the acoustics of the two
chambers, the unit can reproduce powerful ultra low
frequencies without muddiness.
In addition, we also included two super woofer modes
designed to bring the dynamic bass sounds found in
movie theaters (mode 1) and concert halls (mode 2) to
your living room.
Power turns off and on automatically when
the FUNCTION is set to VIDEO 1 or VIDEO 2
When the speakers are turned on and the FUNCTION
is set to VIDEO 1 or VIDEO 2, the power turns off
automatically (and the READY indicator on the left
speaker turns red) three minutes after the program
ends and the sound signal goes out.
The speakers turn themselves back on the next time
you start playback from a source connected to VIDEO
1 or VIDEO 2. Therefore, you don't have to bother
using the power switch every time you use the
speakers with a video source.
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