Alcons debuts LR18 array

Alcons LR18

Alcons will debut its LR18 pro-ribbon array, a three-way line-source sound system, at Prolight + Sound in Frankfurt, Germany.

The all-natural cylindrical wavefront of the purpose-designed RBN702rs 7-in pro-ribbon transducer and the acoustically and electronically symmetrical component configuration are claimed to bring a “remarkable pattern control” in vertical and horizontal planes. It has power handling of 1500W and RMS-to-peak ratio of 1:15. 

Alcons says the MF-section features a high-efficiency 6.5-in midrange transducer with Neodymium motor-structure, co-axially mounted behind the RBN702rsr pro-ribbon driver. 

The LF section consists of two extended-excursion, reflex-loaded 8-in woofers with 3-in voice-coil Neodymium motor-structure. 

Two channels of the Sentinel amplified loudspeaker control drive the LR18 and optimise 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-in LF transducers. Signal Integrity Sensing pre-wiring is designed to ensure 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.

Prolight + Sound will be held at Messe Frankfurt, Germany from April 5 to 8, 2016. Alcons will exhibit in hall 3.1 on stand B50.