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The Holy Grail now available in a smaller package
Germany – The Prolight+Sound show in Frankfurt will see the official debut of the Alcons LR18 pro-ribbon line-array; the three-way, compact mid-size format line-source sound system, combining the highest sound quality possible with very high SPL capabilities and throw.
By implementing Alcons’ multiple-patented pro-ribbon technology for mid and high frequencies, a super-fast impulse response with up-to-90% less distortion is achieved. This enables the LR18 to offer a fully intuitive linear response, with very high intelligibility and non-compressed identical tonal balance at any SPL.
The all-natural cylindrical wavefront of the purpose-designed RBN702rs 7” pro-ribbon transducer and the acoustically and electronically symmetrical component configuration bring a remarkable 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 and RMS-to-peak ratio of 1:15, caters for a superb intelligibility and throw with maximum dynamic headroom reserve.
The MF-section features a high-efficiency 6.5” midrange transducer with Neodymium motor-structure co-axially mounted behind the RBN702rsr pro-ribbon driver.
The LF section consist of two extended-excursion, reflex-loaded 8” woofers with oversized 3” voice-coil Neodymium motor-structure. Due to the extraordinary design, this 8” surpasses the output of even larger drivers in higher-category line-array systems, while maintaining the unobtrusive face print of a compact system.
The LR18 is driven by two channels of the Sentinel amplified loudspeaker controller, optimising the system’s response by LR18-specific drive processing and feedback for each array configuration, including presets for phase-matched low-frequency extensions.
A form-factor matching LB18 is also available, consisting of two of the same 8” LF transducers, adding LB18 modules enlarges the array length, extending the controlled (cylindrical) projection of the LR18 down to the lower frequencies, while increasing throw of the low-mid frequencies over distance.
The Signal Integrity Sensing pre-wiring ensures dynamic cable/connector compensation between the LR18 (/ LB18) and ALC, without any preset requirement. This offers a 1:1, undistorted natural sound reproduction, regardless of cable length and amplifier impedance load (system damping factor at the speaker terminals of 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 WLL of 24 cabinets under 10:1 safety (LB18 32 units).
Array configurations can be simulated in the new release of Alcons Ribbon Calculator (ARC3), Alcons’ high-resolution 3D simulation program.
Philip 'Dr. Phil' de Haan, Alcons’ head of R&D said: “With the development of the LR18, we followed the design footsteps and system approach of the LR28, Alcons’ large format line-array and the LR18’s larger brother. We paid specific attention to the projection of the LR18. In the vertical (coupling) plane, the side-lobe free projection creates a perfect wavefront for an unprecedented throw; In the horizontal plane, the category-leading 90-degree horizontal dispersion is completely maintained from 20kHz down to 360Hz for a seamless coverage.”
Tom Back, Alcons’ managing director added: “This is one of the most important product releases for Alcons Audio to date: Not only for the market volume in both the install and rental market, but also to complete the LR28 large-format touring system package.” Tom continues: “When we started development of the LR18, we knew we had to pull out all stops to make this a benchmark system; not only in the projection control, but also in the 1:1 sound reproduction in any type of application, from classical up to rock & roll. The result is: what-you-mix-is-what-you-get!”
The LR18 is part of The Ribbon Network, comes with a six-year hassle-free limited warranty and is available for ordering now.
Off-site demonstrations will take place during the Prolight+Sound show on Wednesday 6th April and Thursday 7th April of the show.
23rd March 2016
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