DIY Ribbon upgrade for MXL 990 Microphone

Hello, I’m beginning my personal little crusade in the Ribbon Mic arena.

To start, I’ve created an Instructable, to upgrade an MXL 990 condenser mic with a ribbon element from

I created some 3D printed parts to hold the ribbon element and transformer.

But I think one of the key things is I also created a 3D printed ribbon alignment jig. It makes it really easy to replace and re-ribbon the element.

I’ve already gotten a ribbon alignment jig designed for the MXL R80 and MXL R144 mics. I’ve re-ribboned the R144, and replaced the transformer, and it sounds a billion times better. I have re-ribboned the R80, and redesigned the element placement and holder (to make it symmetrical) along with a new transformer as well. Very pleased with that too. I will post these updates to Instructable and Thingiverse shortly

In the meantime, please check out my instructable, and parts on thingiverse.