ok so i prob have a stupid question but im a stupid guy.

i have a sherwood rx-770 with a pair of m60s. they are quite new to me and i am loving them. so when i have nothing playing there is a slight white noise that comes out of the speakers. this noise goes away when i turn off the receiver but is there no matter what input i select. its not a hum but static noise. my question is what is the white noise, and can i get it to go away. i usually listen to mp3s and records and the speaker wires are monster. i dont rememeber if this has bean going on since i fist hooked up the speakers and amp, but i just noticed it a couple of days ago.

any news can help. thank you.
ryan