It seems to me that the Totem Hawk would be to small for a 25x28 room. With your stated criteria, "sound quality is really important to me", I suggest you first find a speaker that is well matched for your size room. Then find an amp that will work with the speakers.
Best integrated amps under $9k
I am building a new house and I will be having a large great room ( 25x28). I love music and and I love to hear all the different instruments clearly. I don't need a heavy bass. I am also not going to be playing music at real loud levels. I like wide dispersion speakers. I have been looking at integrated amps from Krell, Classe, Pass, Macintosh, ATI. Any advice? Sound quality is really important to me. Whatever I buy will last a lifetime. The reason I am thinking about integrated is that I like the idea of AMP/Pre-Amp in one box. Any input is appreciated.