i ve owned the hk 7300 .. a nice piece but you will be happier with the outlaws .. your klipsch ref will sound great .. outlaw amps are neutral and will not get your klipsch too bright .. the 7300 is nice dont get me wrong .. but i think they have too much going on in one box.... HK wont givce you all you want out of your klipcsh .. hk ;s are very warm good for B&W paradigm etc.. the outlaws will show you what your klipsch are made of ..