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Alcons Audio USA BC543 triple carbon 18-in cardioid subwoofer

The BC543 is a self-contained, triple 18” cardioid subwoofer system, designed to offer a high output, tight and accurate sub-bass response. By means of a front and rear located woofer configuration, in combination with DDP™ processing, the system offers selectable cardioid low-frequency pattern control and excellent rear rejection (up to 18dB), without the need for additional cabinets.

Two state-of-the-art 18” Neodymium long-excursion woofers with 5.3-in. voice-coil with vented triple-spider frame and all-carbon-fibre cone are mounted in an X-Vented™ front-loaded configuration; This vent, by taking more than 25% of baffle surface, maximises breathing capacity, increasing overall output. The extreme excursion capabilities of the 18” design extends the output by 3.5dB compared to traditional 18” designs. On the rear side, a single 18” woofer with identical specifications is mounted in a front-loaded configuration, with Flank-Venting™ port; This folded port design enables optimal reflex-breathing, under minimal baffle dimensions. The BC543 is powered and controlled by the ALC amplified loudspeaker controller; Through the DDP™ (Digital Drive Processor), the ALC offers BC543-specific drive processing with response optimisation, dedicated power and excursion protection, and hybrid filtering. The SIS™ (Signal Integrity Sensing) circuit compensates the cable-length and connector resistance between the BC543 and ALC (damping factor >10.000), for further increased accuracy and controlled cone-travel, resulting in a tighter bass response.

- Double-tuned, bass-reflex loaded cardioid-control subwoofer system.
- Triple 18” Neodymium woofer with all-carbon cone for high pressure loading.
- 5.3” voice-coil for low power compression accurate performance.
- Large, centrally-located X-vent for improved breathing and low compression.
- Birch enclosure with extensive bracing brings lightweight yet rigid cabinet construction.
- SIS pre-wired for very high damping and further reduced distortion (with ALC).
- Durotect™ flexible and scratch-resistant coating.