In your price range, look for a used MC252, it will be closer to 3k but it will mate very well with your C50 and be more than enough to drive your Dynaudio Signature C1's.
Mcintosh Quality after buyout by D&M holdings
I am wanting to upgrade my amplifier and a local dealer is trying to sway me to Parasound with the argument that Mcintosh hasn't been the same since D&M Holdings bought them in 2008. I know it has changed hands once more and it looks like again pretty soon. I currently have a MC150 and want to upgrade to a bigger amp, maybe a MC352 or MC402. My speakers are Dynaudio Signature C1's and I recently bought a C50 preamp. Also, are there other amps that would perform better with the C1's than Mcintosh?