Quite....
However my analysis of AVR's and Prepros around this price level, did not indicate any that would provide confidence with their ability to handle my speakers - ultimately all contenders were suspect in terms of very low impedance handling.... so then it became an issue of their suitability to run surround/height channels, and effectiveness as pre-amps / processors. (ie: after my initial analysis, I was fairly sure that I would need to use my power amps regardless which AVR I went with... unless I was willing to go up to a much higher price category - and even then...)
Shortlist ended up with Anthem, Denon and Onkyo/Integra.... I wanted to move away from Audyssey.... and then decided I preferred to try out Dirac based on the many positive reviews I was reading (and a couple of impressive listening sessions at audio shows a few years back).
So, not overly concerned about the power amp weaknesses - and the processing and sound quality strengths are excellent.
It may not even work as suggested using REW because REW may not let you output a high enough signal, and since the Pioneer would go into "limiting", you may not be able to get it to trigger "protection mode" that will shut down the unit, that is, going into standby, unless you can simulate a thermal overload or overcurrent/short circuit event.
