Incredibly solid bass, deliciously rich and punchy, yet with superb definition and quickness. Daniel Kumin, Sound & Vision
The Atlantic Technology 642e SB THX Select powered subwoofer is a significant upgrade from its highly acclaimed predecessor. Compared to the original 642, Atlantic Technology has developed a totally new driver with three times the motor size, a stiffer spider, and a heavier cone. It's a real "monster" of a driver. While the driver's free-air resonance remains at 25 Hz, the output of the sub from 35 Hz to 60 Hz-right in the impact range- has been improved by almost 3dB. Atlantic Technology has modified the equalization (because of the new driver's improved low-frequency output, less amp power is needed for EQ, and consequently more power is available for SPL), limiting and soft clipping parameters of the amplifier to optimize its performance. The result of these changes is a perceived 50-watt increase. In other words, the amplifier plays louder than before, with less distortion at its limits. The 642e SB features a sealed enclosure design for low distortion and smoother bass output. Sealed enclosure woofer designs are inherently low in distortion, and deliver deep smooth bass response with a gradual and predictable roll-off below resonance.
As with all Atlantic Technology subwoofers, close attention has been paid to providing accurate musical bass reproduction along with terrific special effects. 's proprietary Clear Filter TechnologyTM ensures that the bass is detailed and accurate. Powered by a high-efficiency 350 watt amplifier, the 642e SB utilizes the latest in amplifier technology, with an output stage capable of extremely high current delivery and maximum efficiency for exceptional driver control and cool thermal operation. As a custom-designed amplifier, it has been precision matched and equalized to the new 12" driver.
Type: THX Select Powered Sub High efficiency tracking amplifier
Bass Driver: 12" long-throw
Output Power: 350w RMS
Distortion (amplifier): <0.5%
Frequency Response: 25Hz 300Hz 3dB
Low level (line): 20k Ohms
Peak Output: 107dB SPL into 2000 ft3
Power Requirements: 110-120/220-240v,50/60Hz
Dimensions w/ grilles (W x H x D): 19" x 21" x 20 1/2" (483 x 534 x 521mm)
Weight (ea): 65 lbs; 29.5kg