Originally Posted by Maskclone2k
Has anyone here had their crossovers modified by Ed Frias?
If so, what was/are your experiences with the process and the outcome?
I did on the DV62si, years ago. Ed's a nice guy and communicates well. The problem is his $40 to $50 mod (or whatever he's charging these days, I think I paid $35) sounds terrible. It does an OK job of taming the out of control tweeter but totally screws up the mids. The result is a speaker that's no better than stock and if you value an accurate midrange, much worse. Vocals sound like they are coming out of a tunnel and somewhat muffled.
Being an EE myself, I analyzed Ed's mod and found out what went wrong and designed my own mod that corrects the tweeter response, fine tunes the woofer which actually brings out a little more bass. This is really where Ed went wrong. He got greedy and tried to get too much bass and in the process f'ed up the mids. The best part of my mod is that it actually fixes the mids instead of making them worse. It smooths and balances them. The problem with enhancing the bass on the BIC is it can also make it boomy. For this reason I also had to work on the cabinet damping. I went through a few different versions of that before settling on my current version which I believe virtually eliminates the boom without killing the bass. The mod also makes the BIC a little cleaner, which was already one of the speaker's strong points.
While working on this speaker I found there's no magic bullet. The drivers are not perfect. Certainly not of the highest quality. For this reason it was not easy to get it tuned properly. Don't expect any quick fixes. There is a delicate balance.