RCF SUB705 AS MK3 1400W Powered Subwoofer

Experience bone-rattling bass that commands attention with the SUB 705-AS mk3, a portable 15" high-power active subwoofer engineered for serious live sound applications. This powerhouse combines a state-of-the-art transducer featuring a high-power ceramic magnetic circuit with a robust Class-D amplifier, producing sound pressure levels up to 131 dB with exceptional headroom. The rear panel provides comprehensive control with volume, EQ, polarity, and crossover frequency selection, making it the perfect complement for 10" or 12" loudspeakers in any venue setting.

RCF's reputation among sound engineers stems from their ability to achieve very high SPL levels at extremely low frequencies whilst maintaining compact dimensions and impressive power-to-weight ratios. The 1400W peak power Class-D amplifier manages extreme sound pressure levels with ultra-fast attack and realistic transient response, all while maintaining energy efficiency that eliminates the need for cooling fans. The amplifier connects to a solid aluminium heat exchanger with no moving parts, ensuring reliable operation.

Revolutionary Bass Motion Control (BMC) technology sets this subwoofer apart by replacing traditional high-pass filters with an advanced woofer excursion management system. BMC creates a complete map of the woofer's dynamic behaviour, generating a custom algorithm that limits over-excursions whilst maintaining total signal reproduction freedom. This approach handles the lowest audible frequencies without compromising woofer stability, providing extended linearity and superior sound integrity.

Built for the rigours of live performance, the rugged all-plywood cabinet features ergonomic handles with rubber grips and lightweight construction for easy transport and stacking. The heavy-duty poly-urea coating, powder-coated metal grille, and M20 threaded pole mount ensure durability and versatility, whilst frontal vented ports allow placement in recessed spaces. Acoustically transparent sound foam backing protects internal components from dust and humidity, guaranteeing long-term reliability.