Power. Drama. Impact.
B o s t o n A c o u s t i c s . c o m
PowerVent
®
Subwoofers
Boston's new PowerVent subwoofers deliver the dynamic
bass foundation that is essential for lifelike reproduction of
movie soundtracks and music in the home.
All four of the new subwoofers utilize rugged, long-excur-
sion bass units built in Boston's state-of-the-art manufactur-
ing facility in Peabody, Massachusetts. Every one is tested
as it comes off the line to be within
±
1dB of the lab reference
unit, an incredibly tight tolerance. The amplifiers have
built-in variable crossovers that make it easy to achieve a
seamless blend with the main speakers, while 24dB/octave
low-pass filters prevent the subwoofer from being easily
localized by ear, increasing placement flexibility. A cross-
over bypass position is provided for use with home
theater electronics that perform their own bass management
functions.
The PV800 and PV1000 use special high-efficiency ampli-
fiers that deliver high power with low distortion. Our
amplifiers use a linear output stage for superior sound
quality, and a digital tracking power supply that delivers the
required output voltage without power line "sag" or exces-
sive thermal buildup.
Because of their high-powered amplifiers and computer-
optimized tuning, all four models are capable of impressive
deep bass and high output from remarkably compact enclo-
sures. In addition, all four units feature BassTrac,
™
a proprietary new Boston-designed circuit that tracks the
input signal to the subwoofer and prevents its amplifier from
being driven into audible distortion. Unlike conventional
limiters, it preserves the waveform’s shape so the fidelity of
the signal is maintained, while preventing distortion. The
benefit: The bass stays clean and strong at any listening
level.
Auto on-off amplifier switching and easily accessible con-
trols make the PowerVent subwoofers as convenient to use
as they are exciting to listen to.
