Alcons Audio's BQ211 is a double-tuned, quarter-wave loaded subwoofer system which is designed to offer maximum, prolonged high impact SPL performance from a comparatively small footprint. It features a state-of-the-art very large displacement 21” Neodymium transducer with an all-carbon fibre cone, for high pressure loading, plus a force-ventilated 5.3” voice-coil. The internally-braced 15mm birch cabinet features double-tuned, high-pressure loading, through a rounded 236mm/9.3-in diameter low-tuned bass-reflex vent and wide, high-tuned quarter wave tunnel. This provides optimised breathing at high SPLs, yet keeping the total system weight to a minimum.

Finished with Alcons Durotect™ flexible and scratch-resistant coating, it has slider feet on the bottom and sides, enabling the stacking of multiple BQ211’s into vertical low frequency arrays. The additional front-positioned NL4 connector caters for easy “reverse connection” in cardioid arrays, enabling controlled directional LF dispersion.

As part of its new Summer NAMM line up Yamaha has introduced its DSR series of loudspeakers from there pro-audio, live sound group. The line is comprised of the DSR-112, DSR-115, DSR-215, and the DSR-118W sub-woofer. With built in amplifiers and the all-new D-CONTOUR multi-band dynamic processing these new speakers deliver class leading power and DSP effects.

"These loudspeakers deliver top-quality performance and are ideally suited for a wide range of professional applications," said Wayne Hrabak, marketing manager, Live Sound, Yamaha Pro Audio & Combo Division. "The new innovations in these speakers set the standard for affordable active speakers by delivering class-leading power, extreme sound pressure levels and a listening experience that redefines high definition audio."

Built in to the DSR speakers are leading edge digital technological innovations including Integral Digital Tuning, Intelligent Dynamic Control, Powerful Digital Drive and extensive DSP protection.