Active Subwoofer dB Technologies SUB 918

The dB Technologies SUB 918 is a powerful active subwoofer designed for ground-level installation in professional sound systems where deep, controlled, and efficient low-frequency amplification is required. Equipped with an 18-inch premium driver with a 4-inch voice coil and housed in a phase-inverted enclosure, the SUB 918 delivers impressive sound pressure levels of up to 134 dB while reproducing frequencies from 42 Hz.

The 900 W RMS (1800 W peak) DIGIPRO G3 Class D amplifier combines high efficiency with reliability and excellent dynamics. The built-in DSP (28/56 bits) allows precise adjustment of the cutoff frequency (from 70 to 110 Hz), phase inversion, and delay adjustment up to 4.5 ms in hardware or up to 21 ms via the Aurora Net software. RDNet support and USB connectivity ensure full integration into complex monitoring and control systems.

With two M20 threaded holes (on the top and side panels), the SUB 918 can be mounted vertically or horizontally, providing flexibility for installation with tops. A sturdy plywood enclosure, integrated handles, and the option to install wheels on the rear panel make transportation convenient even in touring conditions.

Features

• 18“ woofer with 4” voice coil
• DIGIPRO G3, Class D, 900 W RMS / 1800 W peak
• Frequency response from 42 Hz
• Maximum sound pressure: 134 dB
• RDNet control and compatibility with Aurora Net
• Adjustable crossover: 70–110 Hz
• Delay adjustment up to 21 ms (including 4.5 ms in 0.5 ms increments from the panel)
• Two M20 holes (for vertical or horizontal installation)
• Sturdy plywood enclosure, ready for wheel installation
• Weight: 41.8 kg