I do have two PB16s (extended mode) in the front and 2 PB13 (extended mode) in the back within a 20x16 room, I learned about DIY after i got these subs and the rest of my 7.4.4, i could have gotten more for my money. So now I am just trying to learn and tune everything in. I did try and use jriver media player with some of the BEQs, but only with digital content. The settings was a great experience, definitely filled the hole of what was missing in Pacific Rim. Just confuse as to which nanoavr I needed to get.