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 http://www.diyribbonmic.com/parts 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. http://www.instructables.com/id/Ribbon-Microphone-Upgrade-for-MXL-990/ http://www.thingiverse.com/thing:1271932 Thanks.