Simaudio 400m / 860A vs PS Audio BHK250


Any thoughts on the Simaudio 400M vs 860A? My PS Audio BHK250 is blasting me with heat and I'm looking for other options. My tiny room is 9 by 13 by 8 and is upstairs and south facing so it gets the sun and heat all day. Running the home AC will get the downstairs cool, but this room doesn't stay comfortable with the BHK running and is causing me to end listening sessions short and irritated. I'm not sure I'm open to class D since I'm not willing to have a bigger cash outlay for class D to try to hopefully get to an equal playing ground ats the BHK250.  

The Simaudio 400M runs cooler, but then again is two chassis so maybe not. I'm concerned I'll loose detail and sonics moving to a less costly amp. I'd love a 860A and know the sonics would improve, but according to Stereophile the fins get up to 110 degrees which would only be 10 percent cooler than my BHK 250 and I'm curious if I'd even notice the change. Thoughts and opinions?

128x128j-wall

@sdw would you say they compete in their own way with the A/AB stuff? What did you like about them?

@j-wall I like they had effortless power - 600 watts per mono block. You won't run out of headroom. In my specific circumstance, given the speakers I have, they were a little more bass centric than what I ultimately ended up with - PS Audio's BHK 300 mono blocks, which are AB. Depending on your speakers, the 1200's could be an excellent choice.

Call up PS Audio they will let you try/buy their class D mono blocks and you can test head to head with the BHK.  I had the S300 for several years and it sounded great and ran very cool.  Only sold it because I wanted to try class A/B and I found a Quad Altera that runs cool.

@sdw @jbuhl I like how this turned into a PS Audio thread. Lol. I was hoping to go for the Moon gear but for $3k less I guess I could give the M1200's a try.