Tube Preamp/ McCormack Amp impedance matching

Hi all, the tube preamp in question, (VTL 2.5) has a 200 Ohm output impedance. Amplifier (McCormack DNA-500) has a 10k Ohm input impedance. I think this should be a pretty good combination, impedance-wise. Would you try to do more to optimize the combination with any of the impedance matching devices out there? Or, go as is? I'm aware of 2 impedance matching devices, ATI "The Match-maker" and Burson Audio's AB-160 Buffer.
Thanks.