Alcons Audio: The LR18/120, Wide Dispersion Pro-Ribbon Line-Array is Now Shipping

by Stage Directions
The LR18/120 paired with the RBN702rs from Alcons Audio
The LR18/120 paired with the RBN702rs from Alcons Audio

The LR18/120 from Alcons Audio is a 3-way, compact-mid-size format line-source sound system, combining a 120-degree wide dispersion high sound quality with high dynamic SPL capabilities and throw. It's shipping now. By implementing Alcons’ pro-ribbon technology for mid and high frequencies, a very fast impulse response with up-to-90% less distortion is achieved. This enables the LR18/120 to offer an intuitive linear response, with optimal intelligibility and non-compressed identical tonal balance at any SPL, under a remarkable gain-before-feedback performance.

The all-natural cylindrical wavefront of the multiple-patented, purpose-designed Alcons RBN702rs 7” pro-ribbon transducer and the acoustically and electronically symmetrical component configuration cater for a very coherent pattern control in both the vertical as well as the horizontal plane, without any distortion-inducing horn constructions. The pro-ribbon’s power handling of 1500W (200 milliseconds, which is 10x the industry standard) and RMS-to-peak power handling ratio of 1:15 (common industry ratio is 1:2) are another asset to the system’s category-leading throw and dynamic headroom reserve.

Completing the 3-way configuration for mid-frequencies, is a high-efficiency, horn-loaded 6.5” midrange transducer, coaxially mounted behind the HF driver; The LF section consists of 2 reflex-loaded 8” woofers with oversized 3” voice-coil Neodymium motor-structure; These surpass the output of even larger drivers, while maintaining a smaller face print.System drive is taken care of by 2 channels (bi-amp) of the Sentinel amplified loudspeaker controller, with LR18-specific drive processing and feedback for each array configuration; The presets now also include Alcons’ ”VHIR processing” with phase-matching with any Alcons system.

The Signal Integrity Sensing™ pre-wiring ensures dynamic cable/connector compensation between the LR18/120 and ALC; This offers a 1:1, undistorted natural sound reproduction, regardless of cable length and amplifier impedance load (system damping factor 10.000).

The rigging system enables angle-setting on the cabinets without lifting the array, resulting in safer and faster set-up with minimal handling and a Working Load Limit of 24 cabinets under 10:1 safety.

The LR18/120 is an addition to the LR18 line-array system family; This series consists of the LR18 line-array module in 90-degree horizontal dispersion; the LB18, the double 8” low-mid array extension of the LR18; and the LR18B, the accompanying flying / stacking subwoofer with new generation 18” woofer. Array configurations with these components can be simulated in the Alcons Ribbon Calculator (ARC), Alcons’ high-resolution 3D simulation program.

Philip “Dr. Phil” de Haan, Alcons’ head of R&D: “the development of the wide-dispersion LR18 has been a direct result from requests from our The Ribbon Network (Alcons global dry-hire rental cooperation network) members group. Over the last year, we’ve been working on different dispersion patterns for all our products with our pro-ribbon transducer technology, resulting in different patent-applications.”

de Haan continues: “In the LR18/120, we’ve been able to get a very wide, seamless 120-degree coverage up to the highest frequencies beyond 20kHz, while maintaining the unique projection properties of the pro-ribbon line-arrays; The unique coherent vertical dispersion, eliminates destructive interference, resulting in optimal high frequency throw and wind-stability. This brings the renowned Alcons HiFi sound quality at concert SPL’s to a wider audience; Or as we say “WYMIWYG, What You Mix Is What You Get” !”.

Further information from Alcons Audio: www.alconsaudio.com