technical specifications QB363 mkII
general•Modular scalable LF column array system, foreach size venue / application•

Height and design-matching with QRP40 pointsource column•

Tight driver arrangement for optimal LF arraycoupling•

All-Neodymium 12” drivers for excellent
performance-to-weight ratio•

SIS™ pre-wired for very high damping andfurther reduced distortion•

Shallow form factor and ACO™ color option for
unobtrusive, “stealth” deployment

description
The QB363 mkII is a modular column bass system tobe used in both permanent and (limited) portableapplications. It is designed as the low-frequency
extension (LFE) system to the Q-series line-sourcecolumn systems; However, it can be used asarrayable LFE system with any Alcons system.
The QB363 can be stacked or flown in multiples,making it an ideal building block to form bass arrays,for obtaining low frequency projection and throwcontrol in acoustically challenging spaces or longthrow applications. The controlled (cylindrical)
projection of the Q-series can thus be extended down
to the lower frequencies by enlarging the LFE array
length through adding extra QB363 modules.
The 5.3 ohms system impedance, makes for a very
efficient amplifier channel loading, when assembled
with two units; An array of six 12” woofers driven by

one amplifier channel.
The system delivers a super accurate response 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.
The direct-radiating Neodymium drivers are mounted
in a vented chamber, with large, symmetricalpositioned bass reflex ports for excellent breathing
capacity, increasing overall output while reducing
port-compression.
The integrated mounting hardware facilitates easy
coupling with other QB363 mkII (and QB242).
Optional hardware enables combinations with Qseries systems, among which the QRP40 point-source

090224 • Due to Alcons Audio’s continuous R&D, all specifications are subject to change without prior notice.

evolutionary audio solutions™

column; The shallow form-factor and Architect Color
Option™ of this top/sub stack caters for a perfect,
unobtrusive integration In any application, fixed ormobile.
The QB363 is powered and controlled by the ALC
amplified loudspeaker controller; Through theintegrated processing and feedback, the ALC offers
QB363-specific drive processing with optimal
response and long-term reliability. The integrated

factory presets in the ALC drive processor offer gain,
phase, array-length and filtering matching with all
Alcons systems.
Through the Signal Integrity Sensing (SIS™) prewiring, the cable-length and connector resistance
between the QB363 and ALC is dynamicallycompensated (system damping factor 10.000), further
reducing distortion, while increasing response
accuracy.

technical specifications QB363 mkII
dimensional drawing

technical specifications
Frequency response

45 Hz - 250 Hz (+/- 3 dB)
38 Hz -(+/- 10 dB)

Sensitivity nominal

99 dB (40 Hz - 100 Hz)

Nominal impedance

5,3 ohms

Recommended drive

Sentinel3 min.

Nominal SPL peak

128 dB (Sentinel3 40 Hz - 100 Hz)
133 dB (Sentinel10 40 Hz - 100 Hz)
138 dB (comparative)

Dispersion H x V (single)

omni

physical specifications
SystemDrivers LF

3x AW12.352ND-16 12”, ventedConnectors

2x Speakon NL4 input/link

Physical dimensions

mminches

Height979

38.5

Width367

14.4

Depth500

19.7

Weight (approx.)kglb

4088,2Warranty

A:Alcons Audio
De Corantijn 101689 AP ZWAAGThe Netherlands

E:
W:
T:

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

090224 • Due to Alcons Audio’s continuous R&D, all specifications are subject to change without prior notice.

subwoofer, frontloaded

6 years limited

evolutionary audio solutions™