The AOC51x is a version of the Analag Optical Compressor for the 51x Alliance 551 rack. The AOC51x is optical compressor that, unlike the D-AOC, employs a totally solid-state design.
Images courtesy of [silent:arts]
Notable Features:
- Uses Pikatron or Lundahl transformers
- Stereo link switch
- +/-16v or +/-24 voltage rails set via jumpers
- VU meter
- Accepts DOA or IC opamps
Price has not been announced yet.
Solid-state optical comps on eBay:
For more information see [silent:arts] build thread.


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![[silent:arts] AOC51x DIY optical compressor PCB for the 51x Alliance racks](http://www.diyrecordingequipment.com/wp-content/uploads/2010/09/aoc2-150x150.jpg)





