I like all these in some way or another the only thing holding me back is which one to get, since I'm looking for what will be able to drive the speakers I'll have. Which one is going to be best and maybe future prof if I change the speaker at some point, they will be driving Polk S60, S35 (center), 4 70-RT and VTF-2 MK5 Subwoofer.
Thanks in advance!