I have had a pair of Ohm Walsh 4s for many years (now relegated to a TV system), and while they are sweet, the omni-thing always annoys me for critical listening where I need a point source for imaging. I've always like the Vandys I heard at shows (mainly the 5 series).
PS: If you want your system to shine, add a good preamp in front of the Luxman 505U (using the direct power-amp inputs on the Luxman). I use a high end tube preamp with my 507U and it is a huge upgrade in the areas of palpability and natural tonality. The Luxman as a power amp is unbelievably good (and runs nice and cool too).