Professional DBX 231 SUB Sound Processor 31-Band Graphic Equaliser

TProfessional DBX 231 SUB Sound Processor 31-Band Graphic Equaliser

The DBX 231 SUB Sound Processor is a professional single-channel 31-band graphic equaliser designed to provide precise frequency control for subwoofer systems, mono PA channels, and sound reinforcement applications. Engineered for detailed audio tuning, the unit offers one-third octave equalisation, allowing sound engineers to accurately shape system response, eliminate problematic frequencies, and optimise overall sound performance.

Featuring 31 frequency bands with ±12dB cut and boost capability per band, the DBX 231 SUB Sound Processor delivers exceptional control over low-frequency reproduction and system tuning. This level of precision makes it particularly valuable in bi-amped and tri-amped PA systems where dedicated subwoofer equalisation is required to achieve balanced, powerful, and controlled bass performance.

The processor includes balanced input and output connections to ensure clean signal transfer and minimise noise in professional audio environments. Its intuitive slider-based interface enables quick adjustments during setup, sound checks, and live performances, making it a practical solution for both permanent installations and mobile sound systems.

Key Features

• Single-channel 31-band graphic equaliser
• One-third octave frequency control
• ±12dB cut and boost per frequency band
• Dedicated subwoofer tuning capability
• Balanced input and output connections
• Precise frequency shaping and correction
• Easy-to-use slider controls
• Professional audio signal processing
• Suitable for live and installed sound systems
• Reliable DBX audio performance

DBX equaliser