ML48-8ch

Soft dB ML48-8ch Sound Masking System Controller

The Soft dB ML48-8ch is a high-performance networked sound masking controller designed for professional AV installations in office, commercial, and industrial environments. It features 8 independent output channels, each supporting up to 6 speakers, allowing a total of 48 speakers per controller. Its compact form factor enables flexible installation in ceiling plenums or standard equipment racks.

Each output channel includes a dedicated equalizer with 340 narrow bands and 23 1/3 octave bands, providing precise acoustic tuning for any environment. The built-in high-power amplifier delivers up to 92 dBA at 1 meter, ensuring effective sound masking even in challenging acoustic conditions.

Functionality

• 8 output channels with independent control and equalization
• Supports up to 6 speakers per channel (max. 48 speakers)
• Automatic and manual EQ: 340 narrow bands + 23 1/3 octave bands
• 8 inputs for active volume control sensors
• 4 music/paging inputs with independent 1/3 octave EQ per channel
• 2 inputs for wall-mounted volume control knobs
• Adaptive volume adjustment based on ambient noise (patented)
• Scalable system - multiple controllers can be networked
• Energy-saving sleep mode
• Integration with fire alarms, paging, music, and building management systems (e.g., Crestron)

Features

• 8 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

A powerful and scalable solution for large-scale sound masking installations where precision, flexibility, and reliability are essential. The ML48-8ch is the core of the smartSMS-NET system - an intelligent, energy-efficient platform for modern workspaces.