Sorry Jeff, but I have a tale to tell. Hope you don't mind.

When I first received an RCA MI-1428B field coil compression driver nearly twenty years ago and found that it sounded terrific, I searched for info on the web. The only thing I found was a post from Jeff on a reconer site, where he indicated that he was looking for recone parts for the RCA 1400 series woofers and compression drivers and that "top prices can be paid for these parts."

I wrote to Jeff and he responded that he was willing to tell me everything he knew about these drivers, but that I had to agree to "never tell another living soul." I responded that I was a free flow of info kind of guy and could not agree to those terms. A day or so later he responded at length that the RCA compression driver possessed the best midrange on earth, and that he didn't want this getting out as he had set himself and several friends up with them at minimal cost and wanted this to continue. I kept quiet for several years, but after my business partner and I began manufacturing a modern version of the MI-1428B I spilled the beans online.

Now everyone has a right to change their mind, and apparently Jeff has moved on to Alnico magnet drivers. But I am here to tell you that this was not always the case!