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
Compatible modules included
- 902 De-Esser
- 903 Compressor
- 904 Noise Gate
- 905 Parametric Equaliser
- 906 Flanger
- 907 Stereo Gated Compressor Slave [manual]
- 911 Type I Noise Reduction
- 941A Type II Noise Reduction
- 942A Type II Noise Reduction
- 929 Hiss Reducer
- 933 Mixer module
- Aphex Compellor 9301
- Aphex Dominator II 9721
- Aphex Expressor 9651
- Aphex Aural Exciter
- Aphex Equaliser
- BBE 702
The best-known modules are the 902 de-esser and the 903 compressor. The 902 is one of the most sought-after hardware de-essers out there and the 903 is a dbx 160X compressor on a card, minus the over-easy switch. Both are worth seeking out
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:
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
