The RCF SUB 705-AS MK3 is an active subwoofer in a compact housing equipped with a 15" bass driver and a powerful 1400 watt digital power amplifier. The SUB 705-AS MK3 matches other 12" and 15" speakers and is the ideal complement for the RCF ART and D-Line series. Thanks to the built-in digital stereo crossover (DSP) with adjustable crossover frequency, it can be quickly and easily connected to a satellite speaker.

The cabinets are made of birch plywood and covered with black textured lacquer. The subwoofers are stackable and lightweight, and are easy to assemble and disassemble thanks to ergonomically designed handles. A high stand flange allows the speaker to be used in a variety of configurations. The powder-coated front grille is laminated with acoustic foam on the inside, which additionally protects the speakers from dust.