The Blam RS12.4 is a 300 mm 12 inch extra-slim passive subwoofer designed for shallow installations. It provides 200 W nominal power, 400 W maximum power and a 30 Hz to 500 Hz frequency range.

Built with a steel basket, injected polypropylene cone, butyl rubber surround and a long life conex damper, it features a 50 mm voice coil on an aluminium former and a 126 mm x 15 mm motor assembly. It is optimized for sealed enclosures between 15 L and 45 L and includes a mounting screw and user manual.