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The SUB THREE Subwoofer System is the product of
extensive research into the qualities required for realistic
music and film sound reproduction. The SUB THREE's
engineering, construction, and materials far exceed
conventional industry standards and result in superior
performance and reliability.
The SUB THREE Subwoofer System consists of
one or more SUB THREE subwoofers and the
appropriate crossover. The SUB THREE uses three
eight-inch drivers, each with a massive 1.5 inch, four-
layer voice coil and a forty-ounce magnet structure. The
integral 300-watt amplifier does not current limit and has
ample power for the most demanding situations. The
amplifier's feed-forward error correction eliminates
response and phase variations that would
HOW THE SUB THREE WORKS
Conventionally powered subwoofers receive
their
input signal directly from their crossover instead of
the main amplifier. The sonic signature of the main
amplifier that is
an integral part of the sound you hear
from the full-
range speakers is missing from the
subwoofer. This sonic discontinuity causes blending
problems as the system's sonic characteristics are
different above and below the subwoofer crossover
point. The SUB THREE Subwoofer System uses a
unique connection method that reduces the main
amplifier's current demands and leaves the main
amplifier in the signal path to the subwoofer. This
connection method insures
CONTENTS
compromise the subwoofer's performance.
The SUB THREE Subwoofer System will interface
with most electronics, main speakers, and
environments. The EQ, crossover, and sensitivity
settings allow the SUB THREE's optimization to the
main amplifier's input specifications, the main speakers'
efficiency, and the listening room requirements. The
innovative Q control then allows you to tailor the bass
response's character to best suit your tastes and the
room characteristics. The SUB THREE's pleasing
appearance will enable it to visually complement your
main speakers and the decor of your home.
The Vandersteen SUB THREE Subwoofer System
is designed and built in the United States of America.
the main amplifier's characteristics, evident through the
full-range speakers, sonic continuity are maintained to the
deepest bass, but with the power and control of the SUB
THREE's internal 300-watt amplifier.
Like conventional subwoofers, the high-pass portion
of the SUB THREE's crossover is inserted into the signal
path just before the main power amplifier to roll off the
low-frequency response of the main amplifier and
speakers. The
difference is that the SUB THREE does
not take its input from its
crossover but from the main
amplifier in parallel with the
main speakers. To
compensate for the low-frequency roll-off, the SUB
How the SUB THREE Works 1 Crossover Optimization
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Packing List
3 Maintenance
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M5-HP Crossover Settings 3 Service
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SUB THREE
Placement & Connection
4 Repacking
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POWERED SUBWOOFER
Audio/Video Considerations 4 Troubleshooting
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OPERATION MANUAL
Optimize Settings/Placement 5 Common Questions
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Optimizing EQ Settings
5 Warranty
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Thank you for choosing the Vandersteen SUB THREE Subwoofer System.
With proper care, your new subwoofer will provide many years of trouble
free, high quality performance.
We recommend that you read this entire manual prior to connecting or using
your SUB THREE Subwoofer System. UNPACKING CAUTION: Leave the
upper or lower tray in place when pouring the SUB Three out of the box,
even on carpet.
Vandersteen Audio
