Parasound A21+ or PS Audio S700 monos?

What are you looking to improve upon, and what amp and system sound characteristics are most important to you?

OP,
I hope you get the Parasound too and after all are broken in you could post the shootout results Vs the PSA. That would rock!  I bet there are many readers who have considered these two brands and a good head to head would be most welcome if you are able to swing it

I owned the A21+. Loved it!  I “upgraded” to the JC5 and frankly can’t tell much difference in my setup. Can’t speak to the PS Audio, but I can’t imagine you would be dissatisfied with the Parasound.

Sidenote.  I had an A23 and wasn’t really happy with it. Many have mentioned it. It sounded very “thin” to me. 

I too was concerned about the A21+ and the heat but it never has gotten very hot, just warmish However I never drive it loud!

Hey naimfan - I have an a21+ powering a pair of Monitor Audio Gold 200 speakers. While I can’t speak to the PS Audio monoblocks, I am very pleased with my system. I stream through a Blusound node2 and also have a vinyl rig (Rega). I use an Anthem MRX520 as a preamp when listening to 2 or 2.1 channel. My next purchase will be a DAC to upgrade the digital experience. 
My a21+ does not run particularly hot - warm yes, but I’ve never perceived it to be heating the room. That includes during lengthy high volume jam sessions.  I bought it new a little over a year ago and have had 0 issues.