Audio Volume Control Module Delta MP-2/R, adjustable audio module MP-2/R

Delta MP-2/R is an adjustable audio volume control module designed for in-line audio level management. The compact module enables manual trimming of line-level audio signals to achieve the required output level when integrated into amplifiers, intercoms, paging systems and other audio installations. Its form factor and control interface make it suitable for retrofit projects, new system builds and situations where localized, easily accessible attenuation is needed.

Advantages

The module provides precise and continuous adjustment of audio level, allowing accurate matching between signal sources and downstream equipment. Its simple mechanical control requires no software configuration, and the device can be installed in-line with existing cabling to minimise changes to system topology. Delta MP-2/R is built for reliable operation in typical commercial and institutional audio environments and supports consistent level control over repeated use.

Suitable for

• Adjusting output volume of amplifiers and power modules
• Level control for intercom and paging systems
• Retrofitting or refurbishing audio installations
• Fine-tuning line-level signals in multi-component setups

Key specifications

• Function: manual in-line audio level control
• Signal type: line-level audio
• Control: continuous adjustable potentiometer
• Mounting: in-line/inline installation with existing cabling
• Compatibility: suitable for use with amplifiers, intercoms, paging systems and other line-level devices

How to use

Install the module in-line with the audio cable between the source and the receiving device according to the system wiring plan. Rotate the control to adjust the output level until the desired balance between source and destination is achieved. Perform adjustments while the system is operating at a representative volume to ensure accurate setting. Where multiple channels are present, adjust each channel individually to maintain consistent levels across the installation.

Usage recommendations

Use the Delta MP-2/R for incremental level changes rather than large, abrupt adjustments. Verify signal polarity and grounding before installation to avoid hum or interference. If the installation serves critical paging or emergency audio, check levels periodically and after any system changes to maintain intelligibility and regulatory compliance.