Acctually I typed something here yesterday, wonder why it didn't came up in this page.
Anyway, I bought the 902i ontop from 9.1 & Carnival. comparing these 3, if you like clean mids and crisp highs 9.1 will never suit your taste (on my opinion)
Carnival and 902i are though to decide well we can just leave the price off as they are quite the same. I found that the carnival tends to give you slighty more bass and less clarity on the vocals, 902i is pretty much the opposite.
Well there's never a final purchase, so no worries if made a wrong choice, they are all good. For my case, I like mine cuz it just sound so clean, but i was only comparing them with 9.1&Carnival .. and also the PSB B1. (*within same price range lo)
Hope this helped.

it's always like that. so best is to try out with decent entry level speakers and listen to them for some time, then you'll know what is acctually missing. it's all step by step and where the fun begins.
but what i meant with entry = some ok ok speakers la .. dun go those "chap pa lang" speakers, you wont know what you are really hearing.
Oh yea I choosed the MS902 over MABR2.
I auditioned on a yammy avr thou .. not sure if that really counts.

MSC2 can get around 650 last I enquired. I chosed the MS instead of BR2 wuz a little bit hard on bass which I never liked, but those babies are impressive.