I would like to stay under a grand if I can or buy a late model used somewhere. I like the base EQ in the proton and really don't have any complaints other than I would like a tuner-dvd-cd-and a few aux's for future add's. I have seen a few pre amps with surrounds integrated etc etc. I would like to stay as pure as possible, but if I have to get something with more integration I'm open.