Professional DBX 231 Equaliser Dual 31-Band Graphic EQ for Live Sound

Professional DBX 231 Equaliser Dual 31-Band Graphic EQ for Live Sound

The DBX 231 Equaliser is a professional dual-channel 31-band graphic equaliser designed for precise audio frequency control in live sound reinforcement, PA system tuning, and studio monitoring applications. Built for reliability and clarity, it provides sound engineers with detailed control over the full audio spectrum using one-third octave frequency adjustment.

Each channel of the DBX 231 Equaliser features 31 frequency bands with ±12dB cut and boost per band, allowing accurate correction of problematic frequencies and fine-tuning of system response. This level of control makes it ideal for improving clarity, balancing tonal output, and optimising sound performance in a wide range of acoustic environments.

The unit includes balanced XLR and TRS input/output connections, ensuring clean signal transfer with minimal noise interference. A dedicated bypass switch allows quick A/B comparison between processed and unprocessed signals, making it easier for engineers to evaluate EQ adjustments during setup and live performance.

The DBX 231 is widely used in professional and semi-professional audio systems, including live concerts, churches, auditoriums, clubs, and installed PA systems. Its straightforward interface, durable construction, and dependable performance make it a trusted choice for sound engineers who need consistent and accurate equalisation.

Key Features

• Dual-channel 31-band graphic equaliser
• One-third octave frequency control
• ±12dB cut and boost per band
• Balanced XLR and TRS I/O connections
• Signal bypass switch for comparison
• Clean and transparent audio processing
• Rugged rack-mount design

DBX 231 graphic equaliser