I ordered the test CD from Rives this week. It just got here. It has already paid for itself. I have always heard this weird sound in some songs and now I have nailed it. When I put the Test CD on and started going thru the Frequencies, voila. The 2nd track, which is 25hz started causing this noise in my room. I walked over to where the noise was coming from. Wouldn't you know it, that 25hz tone, caused a painting to vibrate up against the wall. Actually I'll used tracks 32 and up for my Radio Shack meter, however this is really going to find some troubled spots.

Have a great day,

Brad