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127th AES Convention Coverage (New York, NY Oct. 9-12)
PRESS RELEASE
Blue Sky Introduces SUB 212 400W Push-Pull Active Sub & SAT 8 300W Compact Mid-Field Monitor
April 01, 2009
Advertisement World-renowned for their accurate, full-range sound, Blue Sky is pleased to introduce two new critical listening components to its full line of monitoring solutions: SUB 212 400-Watt Push-Pull Active Subwoofer and the SAT 8 300-Watt, Compact Mid-Field Monitor. The SUB 212 is designed to be an integral part of the monitoring system, enabling a studio monitor, such as the SAT 8, to be positioned for the best imaging, and the SUB to be positioned for the best bass response. Relieving the studio monitor of the requirement to reproduce the low frequencies means that the uncompromising sealed-box design can combine with sophisticated bass management electronics to provide a seamless transition between the SAT and SUB. When combined, the SAT 8 and SUB 212 provide a stunningly accurate and engaging, full-range monitoring system. "Our customers were asking for a powerful system that was similar to the Sat 12 and Sub 15, but in a smaller package," said Blue Sky Vice President Chris Fichera. "The Sat 8 and Sub 212 will address those applications." About The SUB 212 The SUB 212's unique "push-pull" configuration is designed not only to increase output, but also to reduce distortion. A push-pull subwoofer uses two drivers: one mounted facing forward, the second mounted backward with the magnet facing out. Utilizing two drivers doubles the maximum output, while the push pull configuration reduces even harmonic distortion. Typically, in a more conventional design, at high output levels, second harmonic distortion dominates the distortion spectrum of most subwoofer drivers and is caused by asymmetric operation of the suspension and magnetic structure. In simple terms; the output of the driver is slightly different when the cone is moving away from the magnet, as compared to when it is moving toward its magnet. Blue Sky Introduces SUB 212 & SAT 8 • 2 Push-pull operation reduces this even harmonic distortion in a clever application of physics. As mentioned before, push-pull uses two drivers, one reversed from the other. The bottom driver has its magnet facing out of the box and is driven electrically out???of???phase from the front driver, which keeps both drivers acoustically in phase. However, when the front driver's cone is moving away from its magnet, the bottom driver's (reversed) cone is moving towards its magnet. This puts the even harmonic distortion components of the bottom driver out-of-phase with the front driver. When you combined the outputs of both drivers, the even harmonic distortion of both drivers cancels, reducing the overall distortion of the subwoofer. About The SAT 8 The SAT 8 is powered by a dedicated low distortion 100-Watt amplifier for the 8" woofer, a low distortion 100-Watt amplifier for the midrange, and a low distortion 100-Watt amplifier for the tweeter. The SAT 8 effortlessly delivers clean and accurate sound with a frequency response of 80Hz to 30kHz +/-3.0dB (200Hz to 15kHz +/-1.5dB), for full compatibility with Blue Sky's SUB 15 Universal, SUB 212, SUB 12 and BMC (Bass Management Controller). The rear panel also has controls for "full space" (placement in a room) or "half space" (mounted in a baffle wall) operation, along with individual HF, MF and LF level trims, as well as controls for variable gain settings. The SAT 8 is designed to operate both vertically or horizontally, thanks to the rotatable MF/HF plate.  (Click for close-up)Recent Blue Sky headlines
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