The Prolight+Sound show in Frankfurt will see the official debut of the Alcons LR18
pro-ribbon line-array; The 3-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 2 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.
The LR18 is part of The Ribbon Network, comes with a 6-year “hassle-free’ limited
warranty and is available for ordering from today.
Off-site demonstrations will take place during the Prolight+Sound show on
Wednesday (April 6) and Thursday (April 7) of the show.
More info on www.alcons.audio, www.lr18.info or in Hall 3.1 stand B50.
