i know that imac has stereo speakers and thunderbolt display has 2.1 speakers
It's surround sound with a subwoofer. IMac doesn't have SS or Subwoofer.
FWIW, I've been using my 2012 27" iMac for about a week now and I'm continually surprised on how well the sound carries despite the thin display enclosure. The bass isn't going to vibrate your windows, but its surprisingly strong. I think its one of the overlooked engineering feats of the new design.
I also use a TB Display at work with my MBA and I have to admit that I find the sound lacking out of it in comparison.
I agree. I have a 2012 21" iMac and a TD display. The audio is much better on the iMac imo.
iMac has stereo speakers http://www.apple.com/imac/specs/
FWIW, I've been using my 2012 27" iMac for about a week now and I'm continually surprised on how well the sound carries despite the thin display enclosure. The bass isn't going to vibrate your windows, but its surprisingly strong. I think its one of the overlooked engineering feats of the new design.
I also use a TB Display at work with my MBA and I have to admit that I find the sound lacking out of it in comparison.
i was waiting for someone to correct me
Is the bass better than TB?
In my opinion, yes, the bass is better.
Wow, lot of people though it had crappy bass, compared to the old 2011 model.