Thanks for the quick responses, I appreciate it.
to ghdprentice - I looked at your system to see the specific extender model as you said but I could not find it, sorry if I somehow missed it.
TP Link makes so many types of extenders, so when I googled TP Link extenders many different ones pop up, some with antennas some without. All seem to plug into the AC socket to work, so it is kind of unclear to me which works in what way. I apologize for my ignorance and confusion.
I do have good strong wifi in my house and in the listening room in question. Just can’t run the hardwire ethernet into it due to the brick walls.