Have been into Vinyl for about 2 yrs now, and now I'm getting to notice the background buzz. It is not so much noticeable when just turned on. But when I move the tonearm to the near surface of LP, when everything is turned on, the sound is more obvious. I have been informed that the feedback problem is very common and mind boggling issue. My Rotel receiver is only capable of 75 ws at 0.03% noise.So, it may be that I am playing it much louder than intended. Also, my Powered Sub would sometimes start flopping and would not make any sound. But it would make play violently around 20 hz; Iam just making this assumption since it is very hard for me to hear the sound but instead I would only feel it on my body. I would appreciated if any of you Vets know any possible solutions to this. Oh, to clarify more none of tyhe problems I've listed above happens when playing from a digital source. Thanx much in advance for your future replies.