Does anyone use a RUMBLE filter?

Rumble with bass reflex speakers and wide frequency range amps is pretty common, and I fixed it with a phono preamp that has a rumble filter (Cambridge 640p with a Pangea power supply). Works on pesky amp an speaker taxing sub 20hz crap that I do not care to have around.

Ditto on Newbee's answer!

Dear Mattmiller: If we take care on the overall audio system each link set up usually we have no need for a rumble filter.

A rumble filter as any filter where the audio signal pass always degrade that signal in many ways and IMHO do more harm than help.

What we have to do is to revise the overall system set up to find out where it comes the feedback that makes the woofers moves.

++++ " So I am wondering why dont a lot more companys sell these things if they are so important? " +++++

because is no important as you can think. I repeat all resides to have a right overall system set up. Forget about rumble filters or any kind of filters. The audio signal does not needs to be filtered to avoid those woofer movements what that is telling you is that you have a problem in your system set up and that it's.

Of course that a filter seller always will tell you that you need it because that's how is taking money from you. With all respect all those satisfied owners of rumble filters are ignorant of what I'm posting here.

Regards and enjoy the music,
R.

No arm/cartridge mismatch here.
Some vinyl is 100% ok, no pumping at all, and some lp's are for sure the source of the rumble (you hear it on all the turntables I try).

agree with newbee, but also agree it won't hurt to have one if your phono doesn't have one. old records warped records may tend to rumble especially at higher volumes with risk of damaging speakers.