Active Subwoofer RCF SUB 905-AS MK3

The RCF SUB 905-AS MK3 is a high-performance active subwoofer designed for professional use in live sound, DJ sets, and mobile installations. Equipped with a 15-inch woofer with a 3-inch voice coil and ceramic magnet, it delivers powerful, controlled sound across the entire low-frequency range from 40 to 120 Hz. The built-in 2200 W (peak) Class D amplifier delivers a maximum sound pressure level of up to 133 dB with instant attack and minimal heat loss. Cooling is passive, without a fan, via a massive aluminum heat sink.

Thanks to the built-in DSP and Bass Motion Control technology, the subwoofer maintains extended linearity and sound clarity even at extreme levels. All necessary settings are available on the rear panel: crossover selection, delay, phase, cardioid mode, and signal level. The connection interface includes stereo XLR input and output, allowing the SUB 905-AS MK3 to be integrated into any audio system.

The subwoofer enclosure is made of plywood with a scratch-resistant polyurethane coating. The sturdy construction is ready for touring conditions, and thanks to the handles on the sides, M20 thread for a stand, and stacking capability, transportation and installation are as convenient as possible. It is a reliable, effective solution for those who expect not just deep bass, but professional results.

Features

• Power 2200 W (peak), 1100 W RMS
• Maximum sound pressure 133 dB
• Frequency range 40–120 Hz
• 15“ woofer with 3” voice coil
• Built-in DSP with Bass Motion Control
• Adjustable crossovers, phase, delay, cardioid mode
• Polyurethane coating on plywood enclosure
• XLR stereo input/output, M20 thread for rack mounting

User Manual