The RCF SUB 8003-AS MK3 is a flagship 18-inch active subwoofer engineered for demanding professional sound reinforcement, including live concerts, DJs, touring systems, and large venue installations. Powered by a 2200W Class-D amplifier, it delivers extremely high output with up to 135 dB SPL while maintaining tight, controlled low-frequency performance.
The RCF SUB 8003-AS MK3 is a flagship-grade professional active subwoofer designed for large-scale live sound reinforcement, touring systems, DJs, and high-output PA applications. It delivers extreme low-frequency performance, very high sound pressure levels, and advanced DSP control in a rugged, road-ready enclosure.
Built around a powerful 18-inch high-excursion woofer and a 2200W Class-D amplifier, the SUB 8003-AS MK3 is engineered for demanding environments where deep bass, reliability, and maximum output are essential.
This subwoofer features a high-performance 18-inch transducer with a 4-inch voice coil and ceramic magnet system, optimized for maximum efficiency and durability. The integrated 2200W amplifier delivers up to 135 dB maximum SPL, making it suitable for large venues, outdoor events, clubs, and touring applications.
The bass reflex design extends low-frequency response down to 35 Hz, providing deep, impactful bass while maintaining control and definition at high output levels.
The SUB 8003-AS MK3 integrates powerful DSP processing for system optimization, including gain control, crossover selection, polarity adjustment, delay settings, and cardioid mode operation. These features allow precise tuning for different venue sizes and speaker configurations.
Its proprietary Bass Motion Control technology improves woofer excursion behavior, reducing distortion and enhancing clarity even at extreme output levels.
According to official specifications, the system is designed for professional touring use with up to 2200W output and 135 dB SPL performance in a compact 18-inch format. :contentReference[oaicite:0]{index=0}
The cabinet is built from rugged multi-ply hardwood and finished with a durable polyurea coating for resistance to scratches, impacts, and transport wear. Despite its high output capability, the enclosure is designed to remain stackable and manageable for touring applications.
Integrated handles and M20 pole mount options allow flexible deployment in stacked sub arrays or satellite speaker configurations.
The SUB 8003-AS MK3 is intended for high-demand professional environments including large DJ setups, live concerts, festival systems, and rental production companies. It is often used where maximum bass output and reliability are required without moving into bulky dual-18" systems.
Its combination of output, control, and portability makes it one of RCF’s most widely used professional subwoofer solutions in its category.
The RCF SUB 8003-AS MK3 is designed for professionals who need maximum bass performance, advanced system control, and reliable touring-grade construction. It delivers deep, powerful low frequencies with high SPL output while maintaining clarity and control, making it a strong choice for large live events, DJs, and professional PA systems requiring serious subwoofer performance.
| Brands | RCF |
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