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Alcons Audio Unveils New LR24 Pro-Ribbon Large-Format Line Array

For use as a vertical array, either in stacked or flown configurations, to meet the needs of even the largest sound reinforcement applications

By PSW Staff May 7, 2014

The new Alcons Audio LR24 larger-mormat line-source loudspeaker; page 2 of this post offers an image showing several LR24 elements arrayed in an application-configurable package

Alcons Audio has introduced the LR24, a 3-way larger-format line-source loudspeaker for use as a vertical array, either in stacked or flown configurations, to meet the needs of even the largest sound reinforcement applications.

Loaded with Alcons proprietary pro-ribbon technology for mid and high frequencies, the LR24 offers very fast impulse response with full dynamics, and up to 90 percent less distortion under the lowest power compression. The all-natural (Isophasic) cylindrical wavefront of the pro-ribbon HF transducer enables a precise pattern control, without any distortion-inducing horn constructions.

Philip “Dr. Phil” de Haan, head of Alcons R&D and initiator of multiple patents, states, “Until now, this extraordinary high level of precision in sound quality was not obtainable in sound reinforcement, especially not at these sound pressure levels. With the new RBN02 pro-ribbon transducer platform, the HF output capabilities lie above that of the largest line-array system.

“The design objective was to create a system with an absolutely neutral, 1:1 non-coloring and predictable linear response behavior at any sound pressure level, with highest projection accuracy,” de Haan continues. “Thanks to our 25-plus years experience in pro-ribbon transducer technology, DSP electronics, and acoustics we were able to realize our goal: What you mix is what you get.”

The HF section features the RBN1402rsr pro-ribbon driver with 14-inch voice coil. The combination of the high sensitivity and the unusually high HF peak power handling of 3,000 watts delivers unique intelligibility and throw, with ample dynamic headroom reserve under any condition. The purpose-designed RBN1402rsr driver is covered by four patents.

The MF section incorporates high-efficiency neodymium 6.5-inch midrange transducers in a symmetrical loaded configuration. The section is made of aluminum and forms an integral part with the HF section for optimized heat management, maintaining high output over a longer period of time.

The LF section consists of two long-excursion, reflex-loaded 12-inch woofers with carbon-reinforced cones. The neodymium motor structure is outfitted with a 4-inch voice coil and dual-spider suspension with forced venting, again for improved heat dissipation and reduced power compression.

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