The QR24 combines "a natural, dynamic sound reproduction with superb intelligibility and throw, in even the acoustically most challenging environments 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; Multiple individual mid-high frequency lobes can be made, by using the QM low-mid fill columns.
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; Specifically for this system, the "RBN03" pro-ribbon platform was developed, offering Alcons' 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, which are, at the same time, actively cooling the RBN drivers for further power compression reduction.
By using only 2 12" RBN 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.
The QR24 is powered and controlled by the Sentinel amplified loudspeaker controller; Through the integrated processing and feedback, the Sentinel offers QR24-specific drive processing with optimal response and reliability and utmost user-friendliness.
The Signal Integrity Sensing pre-wiring ensures complete cable/connector compensation between the QR24 and ALC; This offers a 1:1, undistorted natural sound reproduction, regardless of cable length and amplifier impedance load (system damping factor >10.000 down to 2 ohms).
(Jim Evans)
