The Mojo would without doubt, have enough power for the Utopia. I don't think enough people have them to compare to the TH900, by chance they have both. I have the TH900 and would bet, know, that they are going to sound more open sounding, I bet more dynamic and have a flatter frequency response. The won't have the fun but obvious bass hump.
7/21/16 at 9:56pm