Atlantic Technology 444 SB - Powered 325 Watt Subwoofer
All Atlantic powered sub-woofers 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 roll-off that requires less power-robbing equalization from the on-board amplifier.
The 444 SB is utilises Atlantic's bespoke 12" long throw driver, and is powered by a high performance, punchy high current amplifier boasting an output of 325 watts. The output stage of this amplifier is capable of very high current delivery for exceptional driver control and as a consequence - cool operation. The 444 sub has been engineered and equalized to get the maximum performance of it's rugged long throw driver. The result is that these elements when combined together, deliver powerful, controlled bass with great articulation and authority, with a useful in-room working frequency range of 25Hz to 150Hz.
Perfectly suited for large spaces (why not try two linked together ina larger room!) or good sized home cinema rooms the 444 SB will deliver low and tightly focused bass reproduction at times - no matter what the content. Atlantic sub-woofers have a well-deserved reputation for power and impact without sacrificing detail and articulation. Their subs never fall into the "one-note boom" trap that is so common among conventional subs, and the 444 SB builds solidly on this deserved reputation.
One big reason is this: In addition to the normal "compressor-limiter" distortion-reduction methods, Atlantic has developed special circuitry that actually eliminates the deleterious effects that the enclosure itself has on the sound. They call this 'Clear Filter technology', or 'CFT™ '. That's why other subwoofers, regardless of their power ratings or their limiters, can't match the sound of an Atlantic subwoofer for detail and musical accuracy.
Clear Filter Technology (CFT™) 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 sub-woofers, this negative effect usually occurs in the upper bass range and can make upper bass/lower mid-range sounds like male voices or the upper ranges of bass guitar sound unnaturally heavy or 'thumpy.' This is true even if your sub-woofer 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 sub-woofer 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 their sub-woofers has its own Clear Filter, optimized specifically for that particular model.
Their 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 sub-woofer 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-colour LED status indicator. The automatic standby feature offers signal sensing turn-on with a 7-10 minute turn-off delay. There’s a multi-colour 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 sub-woofers to be produced anywhere.
Engineered for larger applications and room sizes, the 444 SB is perfect for anyone requiring deep, linear and responsive performance underpinning even the most arduous, dynamic and demanding movies.
Atlantic Technology 444 SB Powered Subwoofer Specifications:
- Type: Powered sub-woofer, high current amplifier in sealed enclosure
- Bass Driver: 12” long-throw composite cone
- Output Power: 325W RMS
- Distortion (amplifier): <0.5%
- Frequency Response: 25Hz – 250Hz ±3 dB
- Low Level (line): 10k ohms
- Peak Output: 105dB SPL into 2000 cubic Feet
Features: Continuous 40–140Hz crossover, 18dB/octave low pass output, Variable low level stereo inputs and low level outputs, Absolute phase invert switch, Auto signal sensing. - Dimensions (including grill): 418 x 430 x 407mm (W x H x D)
- Weight: 19.1kg
- Power Requirements: 220-240V/50Hz
- Finish: Satin Black