A rattle inside my amp. in Home Theater Posted November 1, 2012 Do you have a test CD that plays certain frequencies? Why not open up the amp, play the CD tones and listen for the rattle to see what is loose. Might just be a simple bolt that needs tightened inside. I did this with my room. I kept hearing certain vibrations occuring....used my Test CD to pinpoint what was rattling and was easily able to resolve those issues. Thank you Youthman, its weird it only happen when the movie loads in the PS3 not durning the whole play back. I will take the amp out of the tv stand and take the lid off. How long should I let it sit so the electronic charge dissipate? Thanks in advance.