I think I would reframe the question. Is a standalone preamp with lots of inputs necessary? If you only listen only to digital then many DACs have well implemented preamps built into the unit (not in digital domaine). If you listen to digital and vinyl as I do, some DACs have an extra analog input as does my MSB Reference.
Will a high quality preamp really make a difference in sound?? Also speaker cable
Will a quality preamp make my system sound better? And speaker cable...seems like everything I read people are split on this subject. My local hifi store brought up a good point; they said that the only thing between your amp and your speakers are the cable. Very good point and I'm inclined to believe it. Don't want to spend a fortune but don't want cheap cable either. Thoughts/ recommendations? Thank you in advance.