technical specifications LR15/90
general•High-performance line-array system for small tomedium applications•

HiFi sound quality at concert Sound PressureLevels•

Unique fully symmetric and coherent horizontal
and vertical pattern control•

5” pro-ribbon HF section with exceptional
intelligibility and “throw”•Next-gen 6.5” woofers with FlowVent™ loading•

1:1 non-compressed linear sound reproduction,with up to 90% less distortion

description
The LR15/90 is a 2-way, “ultra-compact” format linesource sound system, combining the highest soundquality possible with high SPL capabilities and throw
in a very compact form factor.

The pro-ribbon’s power handling of 1000W and RMSto-peak ratio of 1:15, caters for a superb intelligibility
and throw with a dynamic headroom reserve, evenunder the highest outputs.

By implementing Alcons’ pro-ribbon technology for
mid and high frequencies, a super-fast impulse
response with up-to-90% less distortion is achieved.
This enables the LR15 to offer a fully intuitive linear
response, with perfect intelligibility and noncompressed identical tonal balance at any SPL.

The LF-section consists of two next-gen 6.5”transducers; a perfect hybrid of a woofer and midbass driver featuring a 2-in. dual-coil motor structurewith significantly-extended excursion. The woofers areloaded by FlowVent™ ports, located on the sides of
the cabinet, providing optimised flow with minimal portnoise and compression.

The all-natural cylindrical wavefront of the multiplepatented RBN502rs 5” pro-ribbon transducer with 5”
voice-coil and the symmetrical component
configuration bring a natural, unique pattern control inboth the vertical as well as the horizontal plane up to
the highest frequencies, without any distortioninducing horn constructions.

The resulting super accurate low-mid and bass
response with class-leading output under lowest
distortion possible, is a perfect match with the proribbon MHF.
The LR15 is driven by the Sentinel amplified
loudspeaker controller, optimising the system’s

210224 • Due to Alcons Audio’s continuous R&D, all specifications are subject to change without prior notice.

evolutionary audio solutions™

response by specific VHIR™ drive processing andfeedback for each array configuration, including
presets for phase-matched low-frequency extensions.
The Signal Integrity Sensing™ pre-wiring ensures
dynamic cable/connector compensation between theLR15 and ALC; This offers a 1:1, undistorted naturalsound reproduction, regardless of cable length andamplifier impedance load (system damping factor
10.000).

The 3-point rigging and transport 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 18 cabinets under 10:1 safety.
The LR15 is available with a 90° (LR15/90) or 120°
(LR15/120) horizontal dispersion.

technical specifications LR15/90
dimensional drawing

technical specifications
Frequency response

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

53 Hz -(+/- 10 dB)

Sensitivity nominal

102 dB (200 Hz - 10 kHz)

Nominal impedance

8 ohmsRecommended drive

Sentinel10, max. 3 pcs. per channel (2,7 ohms)

Nominal SPL peak

127 dB (Sentinel3 200 Hz - 10 kHz)133 dB (Sentinel10 200 Hz - 10 kHz)Dispersion H x V (array)

90° x depending on array length

Dispersion H x V (single)

90° x 15° (@ 10 kHz)physical specifications
System2-way, full range

Filtering

passive

Drivers LF

2x AW65.22ND-16 6,5”, vented

Drivers HF

1x RBN502rs 5” pro-ribbon driverConnectors

2x Speakon NL4 input/link

Physical dimensions

mminches

Height176

6.9

Width580

22.8

Depth

333

13.1

Weight (approx.)kg

lb

1430,9Warranty

A:

Alcons Audio
De Corantijn 101689 AP ZWAAGThe Netherlands

E:
W:
T:

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

210224 • Due to Alcons Audio’s continuous R&D, all specifications are subject to change without prior notice.

6 years limited

evolutionary audio solutions™