serpent audio chimera
serpent audio chimera serpent audio chimera

Serpent Chimera 500 Series Opto Compressor


Faithfully replicating the vintage LA3A design


The Serpent Chimera brings the classic Opto sound to 500 series format. Featuring an all discrete circuit design, Orange Drop and Elna capacitors, full steel enclosure & cover, class AB transistor output, true T4B optical cell, and transformer balanced input & output, the Chimera delivers the thick, rich, & smooth opto compression sound that you’re looking for.

All units are made in the USA to an exceptional level of craft and workmanship.





  • All Discrete Transistor Design
  • Transformer Balanced Input & Output
  • True T4B Optical Cell (User Replaceable/Upgradable)
  • Cinemag Input Transformer
  • Full Steel Enclosure & Cover (for maximum signal shielding)Custom Wound Interstage and Output Transformers (Made to Original Specifications)
  • Infamous “Mod” Incorporated (increases signal to noise ratio)
  • Hard Bypass (Relay Controlled)
  • Stereo LinkableHF Sidechain Boost (for De-Essing)
  • Compress/Limit Mode – Sealed Pots
  • Sifam VU Meter
  • VPR Compliant (100mA total power consumption)
  • Made In The USA

Technical Specifications

  • Processor Type:500 Series Opto Compressor
  • Number of Channels:1
  • Controls:Gain, Peak
  • Frequency Response:20Hz-20kHz
  • Side Chain Inserts:Yes
  • Bypass:Hardware Relay Bypass Switch
  • Module Slot Size:Single
  • Power Usage:±16V DC, 70mA
  • Height:5.25"
  • Width:1.5"
  • Depth:6.8"
  • Weight:2.18 lbs.
  • Manufacturer Part Number:Chimera