I just purchased the new Pioneer LSX-505 with Dirac Live! Super excited as it should be here tomorrow. The only downside to this receiver is that it doesn't have independent sub measurements. I have 2 subs. One is a Parts Express PA460 in a 7.4 Cubic Feet ported Box tuned to 32hz powered with a Behringer NX3000D. That Midbass sub is directly behind my recliner. The other sub is an UM-18-22 in a 4cu Flatpack Sealed Sub enclosure powered by a Behringer 3000DSP. This sub is placed beside my center channel in the front of my room. Previously I had a Denon X3600H but never used level matching. I did however Adjust the distance in the Audyssey setup. I have a UMIK-1 and very little experience with REW. This setup is just a bit different from what most folks are doing. Mainly would be looking to set the time delay/distance with the MiniDSP HD. However If there would be more to gain out of the MiniDSP I'd be open to suggestions.