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Alcons Introduces LR16B Line-array Bass System
As an addition to its very successful L-series of products, Alcons has introduced the LR16Bass. This is a high-output bass-system for both permanent and portable applications. It is designed as low-frequency extension to the LR16 line-array speaker module, in both flown and stacked configuration and has one of the highest ‘efficiency-to-weight/size ratios’ in the industry.
Main focus with the development of the LR16B was to achieve the highest efficiency possible, within the weight/size parameters set by the line-array application. A flown application means the system is placed in ‘full-space’ conditions, which brings a substantial reduction (-3dB) of output, versus a ‘half-space’ stacked application. In order to achieve a (much) higher efficiency than the conventional front-loading arrangement, the long-excursion 15” drivers are double-vented, double-tuned in a band-pass loading configuration. The resulting true 102dB (1W/1m, full bandwidth 46-200Hz)) efficiency, in combination with the 3200W. Power handling, brings a 137dB peak SPL from a very compact cabinet.
As the LR16B is primarily designed to be used in flown applications, special attention has also been paid to the weight of the system. The cabinet is made of 15mm/0.6in birchwood with clever bracing for a lightweight yet rigid construction. The drivers are two long-excursion 15” woofers with Neodymium magnet structures and low power-compression design.
The integrated ‘heavy-duty’ flying system, also featured in the LR16, doesn’t have any separate/loose parts and is certified to an unusually high safety-rating: 500kg/1.000lb single-point, safety ratio 10:1. In stacked configuration, the two-side usable flying hardware of the LR16B forms a stabile foundation for LR16 arrays. The LR16B is included in the latest version of Alcons Ribbon Calculator (ARC) prediction software.
The combination of the high acoustic output, the lightweight cabinet and the very high Working Load Limit of the flying system makes the LR16B the perfect match with the LR16 for a compact high-output full-range line-array.
The Signal Integrity Sensing pre-wiring ensures complete cable/connector compensation between the LR16Bass and recommended ALC amplified-controller, for very tight and accurate bass response (damping factor 10,000). Driven by the ALC, the LR16Bass delivers maximum sound quality and output power with dedicated and inaudible (power and excursion!) protection (SpeakerDriveProcessing circuit). Future options of the SDP circuit within the ALC include Cardioid bass-response from multiple LR16Bs.
The LR16B comes complete with flying-frames, Durotect scratch-resistant coating, four handles, sliding/stacking strips and optional wheel dolly and soft-cover, and is backed by a limited six-year warranty.
14th June 2004
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