New Amp for Linn Katana

I am thinking of purchsing a new amp for my Linn Katan speakers. I currently have a Rotel 931 (bought years ago as a student) and was thinking that an upgrade might be something that the speakers deserve (a fairly new purchase to). Any suggestions new or used in the $1000 amp range.
Oh, and i also have this thing for minimal clean amps...
Thanks