Soft dB ML24-4ch is a professional sound masking controller with 4 output channels, 340-band EQ, adaptive volume control, and support for up to 24 speakers. Ideal for medium-sized AV installations.

ML24-4ch

Multizone Sound Masking Controller, 4 channels

Catalogue index: SOF000014

  • Delivery time: 14 days

Description

Soft dB ML24-4ch Sound Masking System Controller

The Soft dB ML24-4ch is a compact, networked sound masking controller designed for medium-sized AV installations in offices, open spaces, meeting rooms, and other environments requiring precise acoustic control. It features 4 independent output channels, each supporting up to 6 speakers – for a total of 24 speakers per controller.

Each channel includes a dedicated equalizer with 340 narrow bands and 23 1/3 octave bands, allowing both automatic and manual tuning. The built-in high-power amplifier delivers up to 92 dBA at 1 meter, ensuring effective sound masking in a wide range of acoustic conditions.

The ML24-4ch supports up to 4 inputs for active volume control sensors and 4 music/paging inputs with independent 1/3 octave EQ per channel. It also includes 2 inputs for wall-mounted volume control knobs.

Functionality

  • 4 independent output channels with individual EQ
  • Supports up to 6 speakers per channel (max. 24 speakers)
  • Automatic and manual EQ: 340 narrow bands + 23 1/3 octave bands
  • 4 inputs for active volume control sensors
  • 4 music/paging inputs with independent 1/3 octave EQ
  • 2 inputs for wall-mounted volume control knobs
  • Adaptive volume adjustment based on ambient noise (patented)
  • Scalable system - multiple controllers can be networked
  • Sleep mode for zero energy consumption at night
  • Integration with fire alarms, music, paging, and building management systems

Features

  • 4 output channels
  • Up to 6 speakers per channel
  • High-power amplifier: up to 92 dBA @ 1 m
  • Equalization: 340 narrow bands + 23 1/3 octave bands
  • 13 preset masking spectra + unlimited user-defined profiles
  • Volume adjustment in 0.1 dB steps
  • Active adjustment range: -7 to +3 dB
  • Volume ramp-up over up to 30 days
  • Compact design - rack or ceiling mountable
  • Wired and wireless connectivity

The ML24-4ch is the perfect solution for medium-sized sound masking installations that demand flexibility, precision, and reliability. With advanced acoustic adaptation and network scalability, it fits seamlessly into modern AV environments.


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