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The SUB 8003-AS MK3 is a professional 18” powered subwoofer delivering 2200 W and up to 135 dB SPL, designed for deep, precise bass with advanced DSP and rugged touring-ready construction.

High-output dual 18" active subwoofer delivering 142 dB SPL and 7200W peak power, engineered for large-format touring systems with advanced DSP and RDNet control.

Legendary subwoofers RCF subwoofers are the preferred choice of many sound engineers, thanks to their very high SPL in the very low frequencies, their smaller dimensions than their competitors, their self-contained design, their integrated delay, their long-term reliability, their cardioid configuration options and their impressive size/weight/SPL level ratio. They will immerse your audience in an immersive and convincing sound experience in live sound reinforcement and DJ applications. The best subwoofers Lightweight and powerful, RCF woofers set the standard for high performance. The engineers behind RCF Precision drivers developed new molds and specific magnet sizes to optimize magnetic flux while maintaining low weight. The magnetic circuit topology of the 15” driver with 3” voice coil combines high performance and perfect balance in three specific areas: consistent magnetic flux with high integrity in the air gap, low distortion, and an efficient integrated magnetic circuit design that reduces weight. The optimized T-pole design minimizes flux modulation in the magnet assembly during typical voice coil movement in the air gap. Responsive Image Power in motion The most powerful amplifier in its class. RCF's improvements to its drivers make the subwoofers more robust and powerful, and the amplifier naturally accompanies this evolution. With a power of 2200 W, our Class D amplifier can generate extreme sound pressure levels with an ultra-fast attack, ensuring a realistic response on transients, with very low heating. Its energy efficiency is such that it does not require ventilation. The amplifier is attached to a solid aluminum heatsink at the rear of the cabinet, with no moving parts. The stereo input circuit, equipped with an active filter (crossover), is of a new design, ensuring low distortion. A sophisticated limiter preserves the naturalness of the input signal, whatever its level. All RCF amplifiers are designed according to the EN62368-1 standard for maximum safety, and their switching power supply combines high efficiency with minimal weight. Responsive Image A workaholic on tour RCF cabinets are made of high-quality plywood with a black polyurethane finish. The subwoofers are stackable and lightweight, and their ergonomic handles make them easy to set up and take down. Two speaker pole mounts, one on the top and one on the side, allow the subwoofer to be deployed in a variety of configurations. The powder-coated front grille incorporates a special acoustically transparent foam lining to better protect the drivers from dust.