dbx 900 Series Racks & Modules

dbx 900 Series Rack & Modules

In the early 1980s dbx introduced the 900 Series, a modular processing system using a 3U chassis with built-in power supply. Sound familiar? Yes, it’s one of the progenitors of the 500 rack system

One of the few manufacturers that supported the dbx system was Aphex – now a player in the 500 Series market with both racks & modules

The 900 Series had (at least) two racks

  • FS900, 1U, two-module, self-powered rack
  • F900A , 3U, eight-module, self-powered rack

Compatible modules included

  • 902 De-Esser
  • 903 Compressor
  • 904 Noise Gate
  • 905 Parametric Equaliser
  • 906 Flanger
  • 907 Stereo Gated Compressor Slave
  • 911 Type I Noise Reduction
  • 941A Type II Noise Reduction
  • 942A Type II Noise Reduction
  • 929 Hiss Reducer
  • 993 Mixer module
  • Aphex Compellor 9301
  • Aphex Dominator II 9721
  • Aphex Expressor 9651
  • Aphex Aural Exciter
  • Aphex Equaliser
  • BBE 702

 

I have a number of 900 Series items in my workshop queue and will update this page when I have more information & photos

Preservation Sound has more info on the 900 Series plus a download link for the original marketing material. More info here

A few forum links & threads for research:

The DBX 900 Series

https://www.gearslutz.com/board/so-much-gear-so-little-time/68346-dbx-900-frame-modules.html

https://www.gearslutz.com/board/so-much-gear-so-little-time/9762-dbx-900-rack-compression.html