DB Technologies SUB 918 - 900W 18-inch Powered Bass Reflex Subwoofer with 4-inch Voice Coil in Black Finish

The dB Technologies SUB 918 is a powerful 18-inch active bass reflex subwoofer designed to deliver deep, full-bodied low-end reinforcement for a wide range of professional audio applications. Built with high-performance components and housed in a robust plywood cabinet, the SUB 918 is capable of providing up to 134 dB SPL, making it an ideal choice for ground-stacked applications requiring extended bass output. Whether for live performances, fixed installations, or mobile sound setups, this subwoofer ensures clean, precise low-frequency reproduction, making it a versatile and reliable addition to any sound system.

Equipped with a 900W RMS Class D Digipro G3 amplifier, the SUB 918 delivers advanced efficiency and superior sound pressure levels, while maintaining high performance in a compact design. The subwoofer features an 18-inch premium woofer, housed in a bass reflex configuration, which provides a remarkable low-end response. The system's performance is further enhanced by advanced DSP processing, which includes on-board controls for attenuation, polarity inversion, and crossover frequency adjustments between 70 Hz and 110 Hz, ensuring the subwoofer can be tailored to suit any application.

One of the key features of the SUB 918 is its compatibility with RDNet protocol and Aurora Net software, allowing for real-time monitoring and remote control. This functionality provides users with the ability to adjust subwoofer settings, such as delay (up to 4.5 milliseconds on the unit, with further adjustments up to 21 milliseconds via software), and configure advanced subwoofer arrays when combined with other dB Technologies full-range systems. This makes the SUB 918 particularly well-suited for complex sound environments where remote management and fine-tuning are required.

The SUB 918 is designed for both vertical and horizontal use, with two M20 pole mounts (one on top and one on the side) allowing for flexible placement of full-range speakers. Its durable plywood cabinet is built to withstand the demands of frequent transportation and live sound use, while still maintaining a relatively lightweight construction at 41.8 kg (92.1 lbs). The subwoofer is equipped with integrated handles on the top edges for easy handling, and the rear panel is designed for optional wheel mounting, ensuring smooth and efficient transport.

Features

• 18-inch powered bass reflex subwoofer delivering deep, precise bass with a frequency response range starting at 42 Hz (Xover dependent).
• Equipped with a 900W RMS Class D Digipro G3 amplifier, capable of 1800W peak power for high-efficiency sound performance.
• Maximum SPL of 134 dB, ensuring powerful output for demanding sound environments.
• Full remote control and real-time monitoring via RDNet protocol and Aurora Net software for seamless system integration and advanced configuration options.
• On-board DSP with adjustable delay (up to 4.5 ms on unit, up to 21 ms via software) and variable crossover frequency (70 Hz to 110 Hz).
• Polarity switch and subwoofer attenuation control for easy setup and precise sound customization.
• Designed for both vertical and horizontal use, with two M20 threaded pole mounts for flexible speaker mounting options.
• Durable plywood construction with integrated top-edge handles and optional rear-mounted wheels for easy transportation.
• Dimensions: 720 mm (W) x 530 mm (H) x 690 mm (D); Weight: 41.8 kg (92.1 lbs).

Specifications

Technical Data

• Speaker Type: Active Subwoofer

Acoustical data

• Frequency Response [-10dB]: 42 to cut frequency (Xover dependent)
• Max SPL (1 m): 134 dB
• LF: 18"
• LF Voice Coil: 4"

Amplifier

• Amp Technology: Digipro G3
• Amp Class: Class D
• Peak Power: 1800 W

Processor

• Controller: 28/56 bit DSP
• AD/DA Converter: 24 bit/48 Hz
• Limiter: Peak, Thermal, RMS
• Crossover Frequency: Variable (70Hz - 80Hz - 90 Hz - 100Hz - 110 Hz
• Controls: 1x Subwoofer Atteniation Control, 1x Delay Rotary , 1xXover Rotary , 1x Polarity Switch

Input

• Signal Input: 1x XLR female, 1x USB (data service)
• Signal Output: 2x XLR male

Mechanics

• Housing: Plywood
• Handles: 2 (1x side)
• Pole Mount: 2x M20 (1 on top + 1 on side)
• Width: 720 mm (28.3 in)
• Height: 530 mm (20.8 in)
• Depth: 690 mm (27.1 in)
• Weight: 41.8 kg (92.1 lbs)