Description
RCF SUB 8003-AS MK3 – Professional 18-inch active subwoofer
The RCF SUB 8003-AS MK3 is a powerful professional active subwoofer designed for applications where deep, controlled, and impressive bass is essential. This 18-inch subwoofer combines a high-quality RCF woofer with a powerful built-in amplifier delivering 2200 Watts Peak and a maximum sound pressure level of no less than 135 dB.
With a frequency range of 35 Hz to 120 Hz, the SUB 8003-AS MK3 provides a solid and deep low-end that perfectly complements professional top speakers. Whether it’s for a DJ set, live performance, festival, corporate event, or fixed PA installation: this RCF subwoofer is built to deliver high pressure without losing control over the sound.
A key feature is the integrated DSP, allowing for adjustable gain, EQ, phase, crossover, delay, and cardioid configurations. This enables the subwoofer to be precisely tuned to the top speakers used and the venue’s acoustics. The Bass Motion Control technology contributes to a linear and powerful bass reproduction.
The SUB 8003-AS MK3 features a professional 18-inch woofer with a 4-inch voice coil. The sturdy plywood cabinet is finished with a durable polyurea coating and is designed for intensive use during transport, setup, and performances.
At SpeakerKoning, the RCF SUB 8003-AS MK3 is an excellent choice for professionals expecting serious low-end from their sound system. Combine it with powerful RCF tops to create a complete sound system with plenty of punch, depth, and headroom.












