Just got mine today! Its's paired with my PF410Hlf 
Sounds great. The 800, even though at 8ohms only gets another 100 watts from the amp over the 500 seems quite a bit beefier.
I have a 4ohm SWR cab I will test it with to make sure there is no issues there. So far I am loving it~

Sounds great. The 800, even though at 8ohms only gets another 100 watts from the amp over the 500 seems quite a bit beefier.
I have a 4ohm SWR cab I will test it with to make sure there is no issues there. So far I am loving it~
Just ordered it tonight after giving it a try and being very pleased. Coupled it will the PF 1X15 450W cab which sounded very sweet with it when I tried it and plenty loud. I tried the PF350 as well, but was not able to dial in just the right tone that I was looking for. The PF-800 was wonderfully versatile, and hopefully will not have the issues the PF-500 had. There is a two year warranty, of course, but hopefully, I won't need it.