"eastcoastguyz" wrote in message
oups.com...

(Please be kind, I am not an audio expert.)

OK.

I have a TV which makes a rattling noised when certain low frequencies
are played at a normal volume.

I thought perhaps this could be done with an audio test CD I have
heard about.

No point - wouldn't help. The usual way is to feed 3 VAC into the audio
system and look for the rattle. Failing that, you need an audio generator to
drive the system.