@Pauly67 Great to hear you got your A80k and are happy with it.
Few folks will have had the opportunity to listen to the CCB-8s, and the Polk Signature, or Triangle Borea series you are referencing.
Perhaps
@shadyJ can advise. Comparing speakers is such a personal thing, and quite room dependent (IMHO), so getting them into your home for a demo would be the best way to evaluate them. (Of course I didn't do that with the HSU CCB-8s as I had to rely solely on reviews, and comments from others who heard them before importing them into Canada. But I'd still buy them again in a heartbeat => except with the Black Cones now! Although I guess the yellow ones were different.)
Will you audition different speakers before deciding what to buy or ?