Drawing on decades of experience of loudspeaker design starting in the 1970s when he worked for the BBC, Derek Hughes designed the Stirling Broadcast AB-2 Bass Extender to seamlessly integrate with all versions of the legendry LS3/5a including both the classic 15 ohm and 11 ohm. When used with the Stirling Broadcast BBC licensed LS3/5a (shown in the photograph above) it makes an exceptional musical partnership.

The original Rogers’ AB-1, although loved by many listeners, also had its critics. Derek Hughes has produced a new, modern bass extender which takes advantage of our custom, modern, drive unit. The result retains the essential musical character of the LS3/5A with better audible progression through the bass register. The AB-2 provides more ‘scale’, for instance for orchestral works or modern music forms which require fast bass handling

To achieve this, Derek’s new design has used a new high quality crossover and a cabinet with a larger internal volume cabinet than the original AB-1. The Stirling AB-2 is 48mm taller and the plinth is larger, measuring 25mm x 255mm x 235mm (HxWxD) making the AB-2 a stable platform on which to sit the LS3/5a. The AB-2 is available in a wide choice of veneer options, please check with your dealer.

The AB-2 is sold with our standard 5 year warranty on the drive units and crossovers.

The Product Brochure for the AB-2 can be found here and the Installation and Care Instructions can be found here. All brochures and instructions can be found here.