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MillimeterAlcons Introduces the LR14B Line Array Bass System
Jan 3, 2006 8:00 AM
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Six Alcons LR14 ultra-compact ribbon line array, with two LR14Bs flown above. |
As an addition to its successful L-series of products, Alcons introduces the LR14B. The LR14B is a high-output bass system designed as a low-frequency extension to the LR14 ultra-compact ribbon line array module. The system offers surprising versatility, as it can be flown, stacked, or serve as the basis for a stand-mount triple-LR14 array.
The main focus in the development of the LR14B was obtaining the highest efficiency in “full-space” conditions, within the weight/size parameters set by the line array application. The line array specific “full-space” flown condition brings a substantial reduction (-3dB) of output, versus a “half-space” stacked bass application. In order to achieve a much higher efficiency than the conventional front-loading arrangement, the long-excursion 12in. drivers are double-vented and double-tuned in a bandpass loading configuration. The resulting true 100dB (1W/1m, full-bandwidth 46Hz-200Hz) efficiency, in combination with 3200W power handling, brings a 135dB peak SPL from a very compact cabinet.
As the LR14B is primarily designed to be used in portable (mainly flown) applications, special attention has also been paid to the weight of the system. The cabinet is made of 0.6in birch wood with clever bracing for a lightweight yet rigid construction. The drivers are two long-excursion 12in. woofers with neodymium magnet structures and low-distortion/low-power compression design. This results in a total weight of 75lbs. including all flying hardware.
The integrated flying system doesn’t have any separate/loose parts and is certified to a rating of 24 cabinets with a safety ratio of 7:1. In stacked configuration, the two-sided usable flying hardware of the LR14B forms a stable foundation for stacked LR14 arrays.
The LR14B’s stand-mount sleeve, in combination with the triple-LR14 bracket and stand, creates a “top-sub” combination, extending the possible applications.
As in all Alcons systems, Signal Integrity Sensing pre-wiring ensures complete cable/connector compensation between the LR14B and ALC amplified controller, for tight and accurate bass response. This results in a damping factor of 10.000 at the input terminals of the LR14B.
The LR14B is included in the latest “auto-shooter” version of Alcons Ribbon Calculator (ARC) prediction software and is backed by a limited six-year warranty.
The first batch of LR14Bs has already found its way to customers in Australia, South Africa, Germany, and Russia.
For more information, visit www.alconsaudio.com or www.theribbonnetwork.net.
Continue the discussion on Crosstalk the Millimeter Forum.