Matching Amp With Pre Amp

Looking for thoughts on amps. Currently have an Audio Illusions Modulus 3 pre and Nak PAII Stasis amp. Speakers are Energy Veritas. Looking to replace the amp. Think the amp may go for $800 to $900. For what it is worth, my musical taste is rock, blues and easy listening.

Now for the question. If I had up to $900 to spend, is there a better match for my pre and speakers combination than the current Nak or am I better off to keep the Nak?