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

@slaw 

Glad audphile1 was able to offer his thoughts...hope that helped resolve the issue.  I haven't ever experienced hum from one channel.  All I would know to do is check all connections and replace cables where possible.

@dhite71 

After some trial and error, found out his JC3+ has an issue. Thx for responding.