Most of the receivers in my budget ~$400 used/new don't have Audyssey DSX, the ones that do only have 2EQ, no thanks. I have credit that I can buy brand new the 2313CI for 899, this is much more than I want to spend but it has both Multeq XT and DSX. I'm seriously considering just getting the 1712 from Denon used for 269, it has MultEq XT and then I can either use discrete 7.1 or PLIIz. I've never heard PLIIZ but plain old PLII doesn't sound good to me if the material is not already 5.1 and if their processing to matrix 7.1 into the fronts would be equivalent to what PLII does for 5.1 then I'd probably be disappointed (who knows maybe they do a better job). That said, many people that have tried the front wides with DSX seem to really be impressed with the upgrade. So I'm at a pitfall, settle for no DSX and buy a receiver that can do discrete or PLIIZ or break the bank with my credit line and go 899 with the 2313CI which I don't really want to do. Maybe there are alternatives, something in the middle. I'm sad to see Onkyo either has 2EQ and DSX on the entry/mid receivers then go to XT32 on their top end ones... I need something in the middle! Ha.
Edit: for what it's worth I'm just assuming Audyssey is the best auto calibration technology right now? I'm using a Yamaha that doesn't auto calibrate anything (I had to do this manually), it sounds good though. Are there other auto calibrations that are good and processing other than DSX/PLIIZ that can do front wides/heights as good or better? I'm up for anything.
AVR: Denon 3312CI
Front L/R: 2 Polk M60's
Center: Polk CS2
Surround L/R: Premier Acoustic PA-6s
Sub: PA-150 Subwoofer