Dan Dugan Sound Design D-3 - Manual (Page 14)

Dugan Model D-3 User Guide Introduction
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The D-3 has many other features that dramatically improve the performance of live
mixing with multiple mics:
• Reduces feedback and ambient noise pick-up
• Insert loop patching allows full use of mixing console features
• Separate Control Panel can be used horizontally on table top or vertically on meter
bridge
• Three control groups for constant ambience with L-C-R panned mics
• Two separate automatic mixing algorithms optimized for speech and music
• Up to 64 live mics by linking eight units
• Convenient remote control capabilities
• Links with other Model D-3s and/or D-2 controllers
The Model D series marks inventor Dan Dugan’s second major audio product innovation.
In 1973, Dugan patented the first automatic microphone mixer. Automatic mixers have
since become a major audio product category. The Model D-3 incorporates three Dugan-
patented technologies:
• The Dugan Speech System™ automatically manages any number of live mics in
unscripted talking situations.
• The Dugan Music System™ offers automatic downward expansion to help reduce
feedback and noise pick-up in live music performances (i.e., opera, pop-rock back-
up vocalists). Thresholds are adjusted automatically through continuous monitoring
of ambient noise levels.
• Dugan Gain Limiting™ provides a continuous, stepless, NOM master gain system
to prevent feedback and ambient noise build-up when used with either the Music
System or with manual or remote mic switching.
The combination of these three Dugan technologies make the Model D-3 a unique audio
industry tool. Professional connectors and default control settings marked on the unit
allow it to be set up and running with any console in minutes.