I just went thru the same with a Datasat processor and a McCormack amp. Datasat Preamp out is HOT, so I purchased some Harrison Labs FMOD 12dB attenuators. took some doing to rebalance the speaker array but it did the trick.
I formerly had the 23.5 and it is a glorious amplifier. Always wanted a pair of puppies. Nice setup, let us know how it turns out.

