Subwoofer rumble issue

Yeah I’m not into the spring thing. Never gonna happen.

The REL has a phase switch. 0 or 180. My system likes 180. Flit it to 0 while music is playing and the Sub rumbles uncontrollably. Earthquake time! 
I understand that a properly set up REL should go unnoticed but apparently I Guess I like more bass than most “purist audiophiles”. I absolutely love my set up (aside from the recent sub rumble issue) and am blown away by how good some recordings can sound. I’ve always been into listening to music and sound quality but only up until recently (about a year) have I really discovered what a very good stereo sounds like. Partly due to financial reasons. I’ve always had a nice stereo set up but never really nice stereo. It’s a different game when you get into the $10k+ realm. I have a subsonic filter on the way. I’ll play around with that - otherwise I’ll learn to live with a sub crossover/volume combo that sits below the earthquake rumble reaction. My next upgrade is a new phono stage. The MS Phonomena II+ is great but I do miss the all tube experience I once had. A rabbit hole this game really is!

Gee, you’re not into springs? I would never have guessed. 🥱

If your current setup (preamp/receiver) has an "infrasonic" filter, it is the same thing.
I'm guessing the turntable is a direct drive? Usually direct drive turntables aren't as isolated from the base as they could be..... Subsonic/infrasonic filters work well with them. Beware of any "in line" subsonic filters unless they are designed specifically for the phono stage....

Hi Paul

I just added a Clearaudio Ovation to my system this week and I to am having some feed back issues. Needless to say I am very disappointed, but it is what it is. Mine seems to be feeding back approximately at 30hz and 120hz at volumes ranging from 85 to 95 db.

Some of the contributing factors that I think are helping cause my issue is my listening room is very small at 14 x 10 x 9, located on the second floor of a 122 year old house and I have the turntable sitting on a very cheap fiberboard end table along an outside wall about 3' feet in front of my left sub.

I placed some anti vibration pads under the feet of the turntable (available from amazon for about $10 to $15 for a four pack) which helped reduce if not eliminate the feedback at 30hz and added a little more detail to the recording. I use an active crossover to integrate my subs that has a digital graphic eq built into the inputs that I used to reduce the 120hz output of my system thus eliminating the feedback.

My next move is to build a prototype table out of 2 x 4 pine so I can relocate the turntable so it is above and slightly to the rear and left of the sub. If this works I will then have Saluda River Audio Stands build me a permanent table out of maple and walnut. 

Also when you said that all hell broke loose when you switched polarity on your sub I believe that was when your subs were actually in phase, at least with the turntable.

What kind of sub ,or how cheap is it made.
Buy the svs sb 3000 with control app for under $1k delivered 
And free shipping and 60 day audition  nothing better even at $1500 plenty of awards !!