So here are some pics of the amp in it's new home.
With the PS 3, receiver, amp and TV all on, watching MI 2, I never saw the PF 31 register more than 4 amps. I guess they don't use much power after all. Unfortunately, my fans were still bugging me, so I turned them down some more. I noticed that the PS 3 fan kicked into high gear just like it used to. Oh well. Maybe I'll just try keeping the cabinet door open a bit when I'm watching movies.
As far as my impressions of the amp, it definitely seems to be a step up from the receiver. It definitely plays quite a bit louder. I only listened to music for about 20 minutes. I'll have to do more critical listening later.
One thing I noticed is that with the receiver, when I cranked it up to -5db or so, (with no music or anything playing, just listening to the amp), I would hear noticeable hiss start to kick in at about -10db and get progressively louder from there. With the amp it stays nice and clean. No hiss at all. Although there is some hiss if I have the DVD player on. But I guess that means it's the DVD player that's causing the noise.
One negative about the amp is that it has a little bit of a hum. But you don't notice it if the cabinet door is shut.