Add the vintage sound of a discrete opamp and transformer to your EQP5 Passive Equalizer or OLA5 Opto Compressor. The bundle is based around our 2523 transformer which is based on the 2503 output transformer found in vintage API consoles.


Choose Your DOA.

The vintage output bundle does not come with a DOA (discrete opamp). Bring your own or choose from our selection of DOA kits in the shop.


  • Custom, USA-wound output transformer
  • Your choice of discrete opamp
  • NOS tantalum capacitor
  • Transformer mounting hardware included

The vintage output gives signals a more visceral, forward feeling that helps them translate clearly in a mix while requiring less level to do so. The solid-state Pultecs, the sound of which many engineers claim to be sweeter than that of the earlier tube units, use the same DOA/transformer output scheme.


Find the Assembly Guide on DIYRE

Vintage Addon for EQP5 or OLA5

Excluding Sales Tax
    • Shipping will be calculated depending on your location
    • Standard Shipping with DHL
    • UPS Express Saver as Option in Checkout
    • Free Standard Shipping in Europe on orders over 100€

    Return of untouched Original Products is possible during a time of 14 days after receiving your article, check our Return Policy