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Turntable Causes Speaker Cones To Excessively Move Rapidly

I have a Technics 1200G turntable, Luxman 595, and I use MM carts. For some reason, when I play my turntable I see my sub woofer cone (REL sub) and my Focal Sopra N1 cones move violently. There is a subsonic filter on it where helps cut down on it. But I am wondering... does anyone else have this issue?

If I didn’t have the subsonic filter would the violent moving of my cones damage my speakers? I ran it for about 2 hours total of turntable music before I noticed. 

Not a issue with my streamer... they stay almost perfectly still. Just with turntable. 

dman777
dhite71
451 posts
 

@elliottbnewcombjr 

apologies for the delay

i have a rega p10 with the stock rb3000 tonearm

my cartridge is a kiseki purpleheart that replaced a benz micro wood sm

 

slaw's avatar
slaw
26,422 posts
 

Wow! @audphile1 

I would never floor mount my tt behind a speaker.

slaw's avatar
slaw
26,422 posts
 

@dhite71 

My local friend just returned from having his Rega RP10 fitted with his supplied 

low hour Ortofon Cadenza Black lomc. 

Experiencing hum, right channel only. 

Thoughts?

ajhsu2
6 posts
 

Had the exact same problem w my Linn LP12 Klimax (and Wilson Alexia speakers).  A $180 Kab RF1 subsonic filter did the trick.  Sounds identical with/without but it stopped the woofer rumble.

audphile1's avatar
audphile1
7,824 posts
 

 

slaw

26,338 posts

 

Wow! @audphile1 

I would never floor mount my tt behind a speaker.
 

@slaw I don’t have my table on the floor behind the speaker. It sits on solid steel amp stand between speaker and integrated. Concrete floor. Zero issues. I do plan to move it out of there eventually but I’m not in a hurry.
There would be more problems with a turntable on a top shelf of a flimsy stand in another end of the room than where it is now.

The Sabrinas are rear ported. They are placed about 4ft from the wall and there are bass traps behind the speakers. It’s all taken care of. 
 

To add…there’s no defined rule for a best place for a turntable. Wall mounting eradicates issues with suspended floors but the bass that travels along the room boundaries might still impact it. Heavy table on a rock solid stand is the key in addition to finding a good location. 

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