Mac, I'll have to revise my original estimate of the DI's versus the Ulf's. Broken in, the DI's are only about 70% of the way to the Ulfberhts. Nothing really changed until I got to 30 hours on the speakers, then they gradually opened up. More detail, crystal clarity, no more "in your face" soundstage. Horns sound so smooth now, and drums have a wonderful punch to them that sounds just right. Vocals are a real treat with an almost ethereal quality to them. This caught me off guard with some of my old recordings which had never been very impressive in terms of the vocals. Now I am hearing what these guys could actually do.