Audiox 1695k Studer Eq

Projects > Audiox 1695k Studer Eq

The 1695k is an EQ circuit from the Studer 169 console designed to fit in one 500-series slot. The EQ features a midrange bell-curve filter, and low and high shelving filters.

DIY 500-series equalizer

Notable Features:

  • +/-15dB of boost or cut
  • Preset low and high frequency bands are easily modified
  • Uses Omeg pots
  • Option for discreet or integrated circuit opamps
  • Neutrik input transformer
  • Designed for API 500-series rack system

Price: 22€ for PCB +2 discreet opamp PCBs from Gustav

More information:

  • Adiox’s original project thread featuring schematic, parts layout, bill of materials, front panel design, and other good stuff.
  • PCBs available from PCB Grinder.