I'm new to ClubPolk and I don't know as much as those of you on the forum so I would appreciate your help.
I've owned a pair of Monitor 7's for about 15years, or so. I've always liked the sound. When I bought them, I listened to a lot of speakers in the price range of the 7s and it boiled down to Polks or Mission; the Polks won out. I just simply liked them; and have ever since.
Anyway, I recently bought a pair of RTA 11TLs on Ebay. Just got them yesterday in fact. They are really nice, been well taken care of. But the tweeters are different. They look like SL3000, they both have "polk audio" inscribed in a circle around the dome four times; but one has a foam circle between the writing and the dome, the other does not. In fact it looks slightly different than the one with the foam, like it never had foam; it doesn't look like there would be room for it. Does anyone have any idea what I've got here? I can't say I hear any difference but I've only listened a short time.