The dB Technologies SUB 618 is a high-performance active 18″ bass reflex subwoofer that delivers deep, powerful, and precise low-end reinforcement for professional sound systems. Designed to complement dB Technologies’ Opera, Sigma, and B-Hype series, the SUB 618 combines a robust 18″ transducer with an efficient Class-D Digipro amplifier and advanced DSP control. It offers selectable crossover frequencies, phase inversion, and exceptional SPL output, making it ideal for live events, DJs, mobile PA systems, and installations.
Features:
- Active 18″ bass reflex subwoofer
- 600 W RMS / 1200 W Peak Digipro Class-D amplifier
- 18″ high-excursion woofer with 3″ voice coil
- Frequency response extending down to 35 Hz
- Maximum SPL of 134 dB
- 24-bit / 48 kHz DSP with limiter and crossover management
- Selectable crossover frequencies: 80 Hz / 100 Hz / 120 Hz
- Phase inversion switch (0° / 180°) for phase alignment
- Stereo XLR inputs and link outputs for system expansion
- PowerCON-compatible AC connectors
- Lightweight birch plywood cabinet with textured black finish
- M20 pole mount socket for top speaker installation
Specifications:
The frequency response spans 35 Hz – 120 Hz (–10 dB), with a maximum SPL of 134 dB. The built-in 600 W RMS Digipro Class-D amplifier provides clean, distortion-free output. The internal DSP offers phase control, limiter protection, and user-selectable crossover filters for precise system integration. Connections include 2x XLR inputs, 2x XLR link outputs, and PowerCON-compatible power In/Out.
Cabinet:
Constructed from high-quality birch plywood, the SUB 618 is finished with a durable black polyurea coating for professional durability. The design includes ergonomic handles, rubber feet, and an M20 threaded pole mount for easy satellite speaker stacking. The enclosure’s optimised porting ensures minimal turbulence and maximum low-frequency efficiency.
