RCF SUB 705-AS MK3 15-inch Active Subwoofer, 700W RMS, Bass Reflex

The RCF SUB 705-AS MK3 is a professional 15-inch active subwoofer designed for live sound reinforcement and portable PA applications. It functions as a dedicated low-frequency extension system, delivering powerful bass that complements main loudspeakers in small to medium-sized venues. Its bass reflex enclosure design enhances efficiency and extends low-frequency response, making it suitable for music performances, mobile DJ setups, and speech reinforcement where clear, impactful bass is required. This subwoofer incorporates a high-power 15-inch transducer with a ceramic magnetic circuit, driven by a robust 1400W peak (700W RMS) Class-D amplifier. The amplifier provides substantial headroom and maintains clarity even at high output levels, reaching a maximum sound pressure level of 131 dB at one metre. The rear panel offers comprehensive control, including volume adjustment, a polarity reverse switch, a three-position EQ for tailoring the bass response, and selectable crossover frequencies (80Hz or 110Hz) to seamlessly integrate with full-range tops. The cabinet is constructed from durable wood with a scratch-resistant polyurea coating, featuring integrated handles and a format designed for stable stacking or ground placement. The SUB 705-AS MK3 is best suited for musicians, DJs, and sound engineers who require a portable yet powerful low-frequency solution. Its balanced XLR inputs and outputs allow for easy daisy-chaining with other speakers, while its convection cooling ensures reliable operation during extended use. The combination of high power output, practical physical controls, and a rugged, road-ready build makes it a versatile choice for mobile sound systems, band rehearsals, club installations, and any application where reliable, high-performance bass reinforcement is needed without excessive bulk or complexity.