i have a sony..tanes9000 pre amp--the thing i love about it is,it sounds great and surround modes are awesome and the reverb is studio quality(even though i only use them to play around) the two things i hate about it is the remote totaly sucks-its very cool but it sucks-its one of those touch screen battery suckers,but it does communicate two ways so you can check all of your parameters on the remote screen-and i dont have sacd inputs...ron