Welcome! I agree with Elk. Stuartmc who wrote a review for positive feedback said he used a P12 with great results!
I am writing up the PF review on the M1200 now and want to add my accolade for the P12. As I stated earlier in this thread, I’m buying the M1200 for my long term review system because it is THAT good! I had other “power conditioning” at work for the bulk of my listening sessions, but last month I got the P12 in house. Holy smokes people! I’m pretty well astonished by the improvements the P12 made.
https://positive-feedback.com/reviews/hardware-reviews/stellar-m1200-power-amplifier/