I have been a music enthusiast since I was a tyke and these speakers sound INCREDIBLE 4 the first month u use them. Then, there is an internal rattle that u can not get 2 and it is overwhelming 2 the point u do not wanna listen 2 music. I got my first set and a month later the rattle,,,, I sent that set back for a fee, Logitech replaced them,, sounded great 4 about a month,, then the rattle again. I would love 2 be able 2 replace this sub with a quality one. While it works this thing is great. But after 2 of them,,, I know it will stop working not long after u have it. I would advise against these.