Alcons Audio has introduced the LR15 Pro-Ribbon Ultra-Compact Line-Array, a two-way, ‘ultra-compact’ format line-source sound system.
Alcons claims that the use of its pro-ribbon technology for mid and high frequencies provides a very-fast impulse response with up-to-90 per cent lower distortion, which enables the LR15 to offer an intuitive linear response, with intelligibility and non-compressed tonal balance at any SPL. The cylindrical wavefront of the purpose-designed RBN502rs 5-inch pro-ribbon transducer with 5-inch voice-coil and the symmetrical component configuration bring unique pattern control in both the vertical as well as the horizontal plane up to the highest frequencies.
The pro-ribbon’s power handling of 1kW and the 1:15 RMS-to-peak ratio, enable a combination of a long throw with a unique dynamic headroom reserve. The LF-section comprises two 6.5-inch transducers; a hybrid of a woofer and mid-bass driver featuring a 2-inch dual-coil motor structure with significantly-extended excursion. The woofers are loaded by new FlowVent ports, providing optimised flow with minimal port compression while extending the usable LF response down to 53Hz.
The LR15 is driven by the Sentinel amplified loudspeaker controller, optimising the system’s response by specific VHIR drive processing and feedback for each array configuration, including presets for phase-matched low-frequency extensions.
Signal Integrity Sensing pre-wiring ensures dynamic cable/connector compensation between the LR15 and ALC. This offers a 1:1, undistorted sound reproduction, regardless of cable length and amplifier impedance load (system damping factor 10.000). The LR15 is available with a 90° (LR15/90) or 120° (LR15/120) horizontal dispersion.
‘We wanted to achieve the same horizontal dispersion control our LR18, LR24 and LR28 are known for, however, these are bi- or quad-amped three-way systems,’ says Philip de Haan. ‘It was not an easy task to obtain this horizontal control with a passive two-way system, especially not in the 120° version. With the all-natural cylindrical wavefront of our pro-ribbon drivers, it was much easier to achieve the side-lobe-free vertical projection.
‘The LR15 will eventually replace the LR14 system, that was introduced already in 2004. The LR14 has been, and still is in production in the exact same form for almost 20 years and, even today, is still more than competitive to recent systems. We believe this very long product life-cycle is a real testimony to the excellent return-on-investment that Alcons systems offer.’
More: www.lr15.info
