I'm soliciting ideas on how folks have been dealing with theater audio traveling to all parts of the home inside the heating ducts.
I know I could have installed an independent heating system such as baseboard electric heaters but instead I left the existing ducts in place passing through the theater room and even cut openings in the ducts for louvers to get heat into the room.
Currently I don't plan to do anything about it. I do not play the audio anywhere near as loud as a commercial theater does (my hearing is starting to deteriorate too) and therefore I don't expect that the problem will be annoying.
Remember when lines and logos burned the TV screen? I was at a concert where a musical selection made extremely heavy use of about four of the keys of the piano.