too be honest, supporting the latest audio format is not that important on Bose speakers. The quality of the speaker is not good enough to tell the difference anyway.
If you must buy Bose, i will suggest get the speaker package only. The home theater speaker package range from $700 to $1300. you will get 5 speakers plus a powered sub. I think it is a pretty good deal.
my local Bose store use Onkyo receiver to power their speakers. i guess Onkyo and Bose are good match.