technical specifications BC272
general•

Double-tuned, bass-reflex loaded cardioid-control
subwoofer system•

Single 15” woofer with 12” woofer in cardioidarrangement•Large vents for improved breathing and low port
compression•

Low impedance for efficient amplifier loading•

SIS pre-wired for very high damping and further
reduced distortion (with ALC)•

Selectable cardioid patterns with up to 42dB
rearward rejection

description
The BC272 is a self-contained, medium-output
cardioid subwoofer system for both permanent andportable ground-stacked applications. It is designed tooffer a tight and accurate sub-bass response, for lowfrequency extension of any Alcons pro-ribbon system.
By means of a front and rear located woofer
configuration, in combination with dedicatedprocessing, the system offers selectable cardioid lowfrequency pattern control and excellent rear rejection(up to 42dB), without the need for additional cabinets.
On the front side, one 15” long-excursion woofer with4-in. voice-coil with double-spider and demodulation
ring, is mounted in a front-loaded configuration.
On the rear side, a single 12” long-excursion woofer
with 4-in. voice-coil with double-spider, is mounted ina “front”-loaded configuration.

The large bass reflex ports on the front and the rearside enable excellent breathing capacity, increasing
overall output while minimising port-compression.
The relatively low-weight, but rigid enclosure isfinished in Durotect™ scratch-resistant coating and isfitted with 2 handles for easy logistics and an M20
stand mount flange(road-version).
The BC272 is powered and controlled by the ALC
amplified loudspeaker controller. Driven by the ALC,
the BC272 delivers maximum sound quality andoutput power with long-term operation reliability.
Through the integrated processor, the ALC offers
BC272-specific drive processing with response
optimisation, dedicated power and excursion
protection, and hybrid filtering.
The preset library contains cardioid settings for
maximum rear-/side-ward attenuation.

021222 • Due to Alcons Audio’s continuous R&D, all specifications are subject to change without prior notice.

evolutionary audio solutions™

The 4 ohms system impedance, makes for a very
efficient amplifier loading; Thus enabling maximum
output from a single, very compact configuration.
Through the SIS™ (Signal Integrity Sensing) circuit,the cable-length and connector resistance between
the BC272 and ALC is completely compensated(system damping factor >10.000), for further
increased accuracy and controlled cone-travel,
resulting in a tighter sub and bass response.

The BC272 is available in road-version and installation(“i”) version, without handles, wheel dolly board andM20 threaded stand mount flange. It is finished in
Durotect™ scratch-resistant coating; Through theArchitect Color Option™ program, the BC272 can befinished in any RAL™ color.

technical specifications BC272
dimensional drawing

technical specifications
Frequency response

40 Hz - 150 Hz (+/- 3 dB)
34 Hz -(+/- 10 dB)

Sensitivity nominal

97 dB(40 - 100 Hz)

Nominal impedance

4 ohms/front, 4 ohms/rear

Recommended drive

Sentinel3 min. 1 pce. per 2 ch

Nominal SPL peak

127 dB (Sentinel3 40 Hz - 100 Hz)
132 dB (Sentinel10 40 Hz - 100 Hz)
137 dB (comparative)

Dispersion H x V(hyper)cardioid / omni (rear not connected)

physical specifications
SystemDrivers LF

subwoofer, bass-reflex front + rear
1 x AW15.4/4 15”(front)
1 x AW12 4/4 12” (rear)

Connectors

1x Speakon NL8 input

Physical dimensions

mminches

Height500

19.7

Width667

26.3

Depth700

27.6

Weight (approx.)

kglb

BC272

71.0

156.5*

BC272i

63.0

138.9

Warranty

6 years limited*incl. wheel board

A:

Alcons Audio
De Corantijn 101689 AP ZWAAGThe Netherlands

E:
W:
T:

info@alconsaudio.com
www.alconsaudio.com+31 (0)229 28 30 90021222 • Due to Alcons Audio’s continuous R&D, all specifications are subject to change without prior notice.

evolutionary audio solutions™