Subwoofer dBTechnologies SUB 915, 15", 900W

The dBTechnologies SUB 915 is a 15" active subwoofer designed to extend low-frequency response for live sound reinforcement and installed sound systems. With a rated peak power of 900W and a driver matched to cabinet acoustics, the unit provides controlled bass output suitable for music playback, speech reinforcement and event sound. The construction combines a reinforced enclosure and practical rigging features to support stage use and repeated transport.

Advantages

The subwoofer delivers deep, tight bass with reliable power handling and a stable frequency response across low frequencies. Integrated amplification and signal processing simplify setup and reduce the need for external electronics. The cabinet design and mounting points allow secure placement on stage or in fixed installations, while the input and output connectivity supports flexible system integration. Overall, the SUB 915 balances sound performance and operational durability for professional audio applications.

Suitable for

• Live music venues and touring PA systems
• DJ setups and clubs
• Corporate events, conferences and presentations
• Fixed installations in bars, small to medium-size halls and houses of worship

Key specifications

• Driver size: 15 inches
• Peak power: 900 W
• Active (built-in amplification and processing)
• Frequency range: designed for low-frequency extension (sub-bass)
• Connectivity: balanced inputs and outputs for system integration
• Enclosure: rugged cabinet suitable for transport and stage use
• Mounting: provisions for secure placement and rigging

How to use

Position the subwoofer on a stable surface or secure it using the cabinet's rigging points according to the venue requirements. Connect the output of a mixer, crossover or processor to the subwoofer's input using balanced cables and link the subwoofer output to satellite speakers or the power amplifier chain as required. Adjust level, crossover and phase controls on the unit to integrate the low-frequency content with the main speakers, and perform a listening check at low levels before full operation to confirm correct polarity and crossover alignment.

Usage recommendations

For even bass response, allow adequate distance from walls and corners or use multiple subs for distributed low-frequency coverage. Use a high-pass filter on the main speakers to offload low frequencies to the SUB 915 and check phase alignment to avoid cancellations. Regularly inspect connectors and mounting hardware when the unit is used on tour or in frequent setups.