technical specifications LR24/90
general•High-performance line-array system for medium
to larger applications•HiFi sound quality at concert Sound PressureLevels•12” pro-ribbon HF section with exceptional
intelligibility and “throw”•Maximum dynamic headroom reserve with lowest
possible distortion•

Fully symmetric and coherent pattern control inhorizontal and vertical plane•

SIS™ pre-wired for very high system damping
and further reduced distortion

description
The LR24/90 is a 3-way, “mid-size” format line-sourcesound system; Loaded with Alcons’ multiple-patented
pro-ribbon technology for mid and high frequencies,
the system features a super-fast impulse response with
up-to-90% less distortion. This results in a fully intuitive
linear response, with perfect intelligibility and noncompressed identical tonal balance at any SPL.
The all-natural cylindrical wavefront of the purposedesigned RBN1202rs 12” pro-ribbon transducer andthe acoustically and electronically symmetricalcomponent configuration bring a unique patterncontrol in both the vertical as well as the horizontal
plane, up to the highest frequencies without any
distortion-inducing horn constructions. The ultracoherent vertical dispersion enables a perfect intercabinet coupling for ultimate HF throw and windstability.

The remarkable intelligibility and maximum dynamic
headroom reserve is due to the RBN1202’s enormous
power handling of 2500W and RMS-to-peak ratio of
1:15, from 1 kHz to 20 kHz.
The MF-section features two high-efficiency 6.5”
midrange transducers with Neodymium motorstructure, coaxially mounted behind the HF driver in ahorn-loaded configuration.
The LF-section delivers a super accurate bass withhighest output under lowest distortion possible. The
new-generation 12” transducers are fitted with a large,dual-3.5” voice-coil Neodymium motor, enabling asignificantly-extended excursion, while maintaining ahigh sensitivity.

311022 • Due to Alcons Audio’s continuous R&D, all specifications are subject to change without prior notice.

evolutionary audio solutions™

The LR24/90 is driven by the Sentinel amplified
loudspeaker controller, optimising the system’s
response by system-specific drive processing andfeedback for each array configuration, including presets
for phase-matched low-frequency extensions.

The rigging system enables angle-setting on thecabinets without lifting the array, resulting in safer andfaster set-up with minimal handling. The unique, patentpending flying system facilitates both compressed andnon-compressed suspension. It has a WLL of 24
cabinets under 10:1 safety.

The Signal Integrity Sensing™ pre-wiring ensures
dynamic cable/connector compensation between theLR24/90 and ALC; This offers a 1:1, undistorted naturalsound reproduction, regardless of cable length andamplifier impedance load (system damping factor10.000).

technical specifications LR24/90
dimensional drawingtechnical specifications
Frequency response

58 Hz - 20.000 Hz(+/- 3 dB)

46 Hz -(+/- 10 dB)

Sensitivity nominal

109 dB (200 Hz - 10 kHz)

Nominal impedance

LF 8 ohms, MHF 8 ohms

Recommended drive

Sentinel10, max. 2 pcs. per channel (4 ohms)

Nominal SPL peak

142 dB (Sentinel10 200 Hz - 10 kHz)Dispersion H x V (array)

90° x depending on array length

Dispersion H x V (single)

90° x 8° (@ 10 kHz)physical specifications
System

3-way, full range

Filtering

2-way active, 2-way passive

Drivers LF2x AW12.352ND-16 12”, vented

Drivers MF

2x AM65ND-16 6.5”, sealed

Drivers HF

1x RBN1202rs 12” pro-ribbon driverConnectors

2x Speakon NL8 input/link

Physical dimensions

mminches

Height354

13.9

Width950

37.4

Depth

447

17.6

Weight (approx.)

kglb

45

99,2Warranty

A:Alcons Audio
De Corantijn 101689 AP ZWAAGThe Netherlands

E:
W:
T:

info@alconsaudio.com
www.alconsaudio.com+31 (0)229 28 30 90

311022 • Due to Alcons Audio’s continuous R&D, all specifications are subject to change without prior notice.

6 years limited

evolutionary audio solutions™