A cary SLP 2002 or a SLP 05. Krells sound better balanced and with a good balanced tube pre-amp like the two I mentioned you cannot go wrong. The Cary tube pre-amps will warm things up a little on the KSA 200s which can have a bit of a bright sound. Most friends of mine that own Krell amps from that era end up with these pre-amps. Still be sure to get the correct tubes that will compliment your system.
