IOAudio EQP500 Equalizer

Projects > IOAudio EQP500 Equalizer

The EQP500 is a Pultec-style passive equalizer for the 500 series. It employs the same filter network as the Pultec PEQ1a, but instead of using tubes for makeup gain it employs a discreet opamp. The creator is planning on offering a partial kit for this project in the near future.

Images courtesy of IOAudio

Notable Features:

  • PEQ1A filter network
  • Nickel-iron core inductor
  • Input and output transformers based on the Triad HS-56
  • Discreet Opamp socket accepts endless options from API, John Hardy, etc.

Price: Not announced yet.

More info: Keep an eye on IOAudio’s original thread to see when kits are offered.