RCF Sub 8003-AS MKIII RCF Sub 8003 MKIII – 18 inch Active Subwoofer – The best in it’s class! This Subwoofer is a high-performance active subwoofer that delivers deep, punchy bass in a compact enclosure. Powered by a 2200W Class-D amplifier and loaded with a robust 18″ woofer, it produces tight low-end response down to 35Hz with a maximum SPL of 135dB. Its advanced DSP includes selectable crossover presets, cardioid configurations, and system protection, making it ideal for both portable PA setups and fixed installations. Built with a durable Baltic birch cabinet and equipped with sturdy handles and pole mount, the RCF SUB 8003-AS MK3 combines power, clarity, and reliability for professional sound reinforcement. RCF Sub 8003 Attributes Acoustical Specifications Frequency Response: 35 Hz – 120 Hz Maximum SPL (at 1 m): 135 dB Transducer Woofer: 18″ with a 4.0″ voice coil (ceramic magnets Amplifier & Power Peak Power Output: 2200 W (Class-D) DSP & Controls Built-in internal DSP with Bass Motion Control for enhanced low-frequency linearity Rear panel controls include: Selectable gain, crossover frequency, phase/polarity, cardioid mode, and time delay Protections: Thermal, RMS; plus a soft limiter I/O & Connectivity Inputs: Balanced/unbalanced via stereo XLRs Outputs: Stereo XLR signal through outputs (link) Power: Powercon IN/OUT Physical & Construction Details Cabinet: Multi-ply hardwood (plywood) with rugged coating; tour-ready stackable design Pole Mounts: M20 threaded receptacle on top and side for versatile deployment Grille: Steel with acoustically transparent foam backing to protect transducer Dimensions & Weight Height: 693 mm (27.28 in) Width: 505 mm (19.88 in) Depth: 685 mm (26.97 in) Weight: 43.2 kg
