I own Harbeth SHL5s and I found the best positioning for my listening room was to pull them out 1/3 of the distance of the room. My room is 21 feet deep so the front of the speakers is about 7 feet out into the room. I don't toe them in and the soundstage is great. I also keep the grills on-seem transparent to me.
I think you have a very nice analog front end. I have an Arcam RDAC and it's fine, but I recently purchased a Line Magnetics 502CA and, with good digital files, it's magical. I use a Bryston BD1 for the digital output to the DAC.
