HT Receiver and speaker questions (Marantz, Sony, KEF)

[nyindallas]

Greetings,

Currently I have 2 home theater setups. Marantz 7500 and Marantz 5400 both using external power amps to drive front and center channels. I want to set up a HT system in the bedroom. I just had the opportunity to pick up a Sony DA3000ES receiver at a great price. I am not sure how that Sony will compare to the 2 Marantz units. I am trying to determine if I should put the Sony standalone (w/o amps) in the bedroom with B&W 601S3's, or put it in one of the larger rooms and put one of the Marantz units in the bedroom. In the main rooms I have KEF and Paradigm speakers.

Part 2
In my larger family room I am currently running a pair of KEF Q7's in the front with a match Q9 center channel. I also have a pair of REF ONES that I use in another room for music with a stereo. I have an opportunity to get a match center channel speaker called the REF MODEL 90 that is supposed to be matched to the REF Ones. Any thoughts or opinions on how the REF ONE.REF MODEL 90;s would perform in a home Theater setting as compared to the Q7/Q9C combo? Thanks