Turntable and subwoofer living together in peace and happiness

Rumble filters are mostly just a kludge that mask the root source problem, without solving anything, IMO. I’ve been down that road, had the KAB filter which was nothing but a kludge and got rid of it as a waste of money. It masked the issue a little bit. I had to solve the root problem. In my case that was a tonearm with magnetic bearings that got upset too easily. I solved that by replacing my tonearm to one with mechanical bearings. 

Rumble filters are not a panacea. In my experience they’re a bandaid that doesn’t stick well enough to prevent exposing the wound.

@horn13 I used Hana ML on 3 turntables )not on Rega though) and Hana EL on 2 tables including Rega P2 with no issues.

My recommendation would be to start with basic  troubleshooting steps  

1. Check your cartridge alignment - overhang, azimuth, zenith, VTA (this will most likely be an issue without spacers).

2. Double check your VTF. I recently had an issue with a digital scale that calibrated perfectly but lied when setting VTF by over 1gr causing mistracking. Instead of 2gr my ML was tracking at slightly under 1gr. I bought a Riverstone Audio scale and it’s excellent. Issue addressed.

Here’s the link to the stylus force gauge on amazon: https://a.co/d/07W82QL8

Deeper dive - likely the cartridge compliance is not ideal on RB330 with Hana ML. But with proper alignment you can mitigate rumble. Or get a phono stage with rumble filter  

The first thing to start with is location. Although locating turntables is corners is a no-no, you can even have issues with the table being in proximity to the corner.

I had an issue some time ago with a VPI Aries when I had stereo corner loaded subs. The table was located off center on the rack, closer to the right corner and I was getting terrible feedback but only with high playback levels of bass heavy material. Moving the table six inches away from the corner and closer to the mid-point along the front wall completely solved the problem. 

So pay attention to where your table is situated. If it is closer to one corner, just try moving it a little more center. Costs you nothing.

Pull the subwoofer away from the wall as much as possible. I suspect the back pressure from the sub is riding directly down the wall to your Turntable.FWIW I have had the same issue. My sub was closer. Moving the sub further from the TT and the wall was effective. Also consider isolation footers, IE Herbies Audio or the sub dude mentioned earlier

Definitely the subs location is the biggest issue.