I really don't know how long it's been doing it, but I noticed last night while playing that when I strike the E and/or A I get a distorted sound, If I fret the E at the first fret (F) it still makes this sound, almost like a cracked or torn cone.

I removed the grill (AD30VT) and inspected the speaker and it appears that it has no tears. Is there other parts of the speaker that would cause this?

I am thinking of changing the speaker if necessary. I've never done that, but it would seem to be an easy thing to do.

This will open the door to opinion, but any suggestions on what speaker to get and a good place to buy a speaker.

I know the site is loaded with recommendations, but I don't want to read through a lot of jargon that means little to me. Just provide me with some straight talk.