[Wayne A. Pflughaupt]

The bass information are as you know very "up and down" in velocity depending on the source...
Do you think it can work? Receiver-->Preamp-->BDF-->Active Sub.

I have something like that, but my dedicated sub pre amp is remote controlled so I can adjust sub level “on the fly” if need be, without having to get up from my chair. Unless the pre-amp you want to use is remote controlled, I can’t see any reason to use it at all. You can get up and adjust the sub’s level just as easily as the pre-amp’s. Unless maybe the pre amp will be more readily accessible than the sub – maybe then it would be worthwhile.

Regards,
Wayne