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Introducing the new BQ211 carbon-coned subwoofer

Alcons BQ211.jpg

After sneak-previewed at Frankfurt 2010 as European debut, Alcons Audio is now presenting its new BQ211 subwoofer, which extends the low frequency response of the company’s pro-ribbon systems for both permanent and portable applications. It is the first introduction of the upcoming LR24 mid-sized pro-ribbon line-array touring system.

The 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.

Featuring the very latest materials and design innovations, it contains 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 latter is mounted in a vented triple-spider frame and features optimised low resistance impedance and a port-vented magnet structure, to reduce power compression and prolong performance.

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.

It is powered and controlled by Alcons ALC series amplified loudspeaker controllers, whose SDP™ (Speaker Drive Processor) circuits offer BQ211-specific drive processing with response optimisation, dedicated power and excursion protection, hybrid filtering and cardioid processing. Additionally, through the SIS™ (Signal Integrity Sensing) circuit, the cable-length and connector resistance between the BQ211 and ALC is completely compensated for, with a damping factor of 10.000, further increasing response accuracy.

With a frequency response of 33Hz - 150Hz (+/- 3dB) and an SPL that needs to be felt instead of read, the BQ211 is a truly wideband subwoofer with high SPL performance down to the lowest frequencies. Yet, measuring just 590 x 746 x 986mm (23.2 x 29.4 x 38.8-in.) and weighing just 72kg/159lb, it is a highly portable unit with an exceptionally small footprint.

Part of The Ribbon Network inventory - Alcons’ global dry-hire network - the BQ211 has a wide variety of uses and comes with a 6 year limited warranty.

For more information visit: www.alconsaudio.com and www.theribbonnetwork.net

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