Is this normal?


I have a Cary 2A3 SE Amp. I noticed that when I have the outdoor speakers on only, there is music that can be heard coming out of the amp. It's not real loud, but it's definately from the amp itself. How is this possible?
bennett

Showing 1 response by bob_bundus

normal for tubes ... sure.
We all know how tubes are microphonic. This is a sort-of similar mechanism, but where the tubes' plates are actually physically vibrating along with the music. You don't notice it of course when the indoor speakers are on because their SPL swamps out those tiny vibrations which you're hearing.