audio problem

Hi everyone, thanks for taking the time to look this over, its really driving me crazy. The problem: I am getting a loud buzzing noise, with a noticeable 60-hertz tone in my recordings. Where I'm at: First, everything is plugged into a single surge protector (just a bog standard one...

Hey, I have bought new speakers KRK Rokit but sound sounds crazy, like without basses. The top side looks damaged (maybe?). Look at the pictures. Can I fix it by myself?