Just add a tube preamp for now, that way all your sources will benefit from tubes. Do your research as to which tube preamp will make a good match to your power amp. See what others have to say (Audiogon forums etc.), consult the amp's mfg for their recommendations. Note, the amount of money spent on a tube preamp doesn't guarantee a good match and or the desired outcome with your solid state power amp unless they are the same name brand. For example, CJ makes both ss & tube and they sound very good intermixed. Eventually you may even want to try/add a tube power amp as you familiarize yourself with tubes and the benefits of tube rolling.
