API Mic Pre 500 series from 325 card

API Mic Pre 500 series from 325 card

An API 325 card can be mounted into a 500 series size module chassis and outfitted with necessary controls to be a fully functional professional mic pre. 

This Mod came about from customer’s requests to make something useful from 325 cards they had sitting on a back shelf collecting dust.

The Drawbacks  :

1. Not much you can do with a 325 card as is, except keep as a spare for your API console.

The Solution :

Mount the 325 card into a sub chassis so it can plug into a 500 series rack and add a mic transformer.   Include the following controls:

1.  -20 db input pad.
2. Phase reverse switch.
3. Phantom power switch.
4. Gain Pot

Price is for modification labor and parts.  Does not include unit to be modified.