Hello, I just purchased a Rotel 1520 integrated amp, I am setting it up to my iMac and have ALAC files for music (still searching for a DAC under $500). My system will be in the living room of an apartment (about 12x13). Which speakers do you recommend, B&W CM1 vs CM5, I have listened to both at a local shop but cannot decide if $500 extra is worth it. Thank you.