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Alcons QR24 Modular Column Array System

QR24 is a modular 2-way line-source array column to be used as vertical array sound reinforcement system. It combines a unique projection/dispersion control with a full-range frequency response and a superb intelligibility in even the most difficult acoustics with undistorted HiFi sound quality at very high sound pressure levels; This is achieved without the need for DSP-based beam shaping.

Due to its modularity, throw and low-frequency directivity (“near field”) can be increased just by extending the array length.

The QR24 measures a mere 66cm / 26” tall in length, and is fitted with 4x 6.5” woofers and two purpose-built 12” pro-ribbon drivers; The “RBN03” pro-ribbon platform was developed, offering Alcons’ renowned non-compressed HiFi sound quality with absolute lowest distortion possible, but with less mounting depth. This accommodates a co-axial driver arrangement with the LMF transducers..

By using only 2 12” pro-ribbon drivers, the system’s active frontal radiation is close to 90%; The resulting sharply-controlled vertical dispersion offers a superb, SPL-independent, intelligibility over distance, without the necessity of DSP-based beam-shaping.

Each purpose-designed 12” RBN pro-ribbon driver has a peak power handling of 2.000W, creating a virtually infinite system headroom of 4.000W from 1kHz up; Together with the high acoustical sensitivity, the system enables high-SPL sound-reinforcement performance.

The QR24 is powered and controlled by the Sentinel amplified loudspeaker controller; The passive filtering allows up to 3 QR24 modules to be combined on one amplifier channel, with an array length of 2meter/7ft.

System: 2-way, full-range

Filtering: passive

Components: 2x RBN1203 12” pro-ribbon MHF + 4x 6.5” vented woofers LF

Freq. response: 74Hz. to 20.000Hz (-3dB)

Impedance: 8 ohms

Crossover: 1.000Hz.

Nom. SPL: 109dB (1W@1m, 200Hz.-10.000Hz.)

Dimensions: H 26” x W 9.8” x D 13.3” , H 66cm x W 25cm x D 33,7cm