Atlantic Technology 444SB-BLK Subwoofer
Atlantic Technology Powered Subwoofers
All Atlantic powered subwoofers share their essential design approach and
philosophy: Heavy-duty woofers in optimally sized enclosures, powered by
high-current amplifiers. They all use the sealed "acoustic suspension" bass
alignment method which delivers superior transient response for greater clarity
and detail, and a more gradual low-frequency rolloff that requires less
power-robbing equalization from the on-board amplifier.
We've also developed an exclusive feature called Clear Filter Technology (CFT)
that actually reduces the deleterious effects the enclosure itself can have on
the sound. All enclosures have dimensionally-dependent resonances. Those
resonances can impart a negative 'coloration" to the sound. In subwoofers, this
negative effect usually occurs in the upper bass range and can make upper
bass/lower midrange sounds like male voices or the upper ranges of bass guitar
sound unnaturally heavy or 'thumpy.' This is true even if your subwoofer is
"crossed over" in what you think is the low bass region--lower than 80 Hz or
so--because crossovers are not absolute. So even if your subwoofer is crossed
over at 80 Hz, it is still producing significant output
up
to about 180-200 Hz. Atlantic's Clear Filter introduces a reciprocal
correction in the exact frequency region where these problems occur, resulting
in a markedly cleaner, more detailed sound. Every one of our subwoofers has its
own Clear Filter, optimized specifically for that particular model.
Our subs utilize an adjustable (40Hz to 140Hz) 18dB per octave Low Pass
crossover that allows much better bass integration with the satellite speakers
while making the woofer less localizable. Meanwhile, the Phase Invert switch
(Normal/Invert) allows precise acoustic matching with satellite speaker systems
whose output relative to the subwoofer may be phase reversed. This switch also
allows you to compensate for unusual room acoustics that occur when the woofer
is physically separated from the main speakers by a significant distance.
Other features are convenient front panel mounted Level Control and automatic
standby operation with a multi-color LED status indicator. The automatic standby
feature offers signal sensing turn-on with a 7-10 minute turn-off delay. There’s
a multi-color LED status indicator that lets you know when the unit is on or in
standby. Automatic Standby can be defeated by placing the rear mounted switch in
the ON position. Finally, they are all designed and built to meet all current
domestic and European safety requirements, making it one of the most
sophisticated subwoofers to be produced anywhere.