What would you change?

I have a system consisting of an EAD Ultradisc as transport, a Benchmark DAC, an ARC LS-15 preamp, Gamut D200 amp and VR4jr speakers, and find I am hearing some "grunge", for a lack of a better word, in the leading edge of vocals. There seems to be an edge to the sound, not a sweetnes , and I am seeking some ideas of what I might change to rid the system of the sound.
I realize the description is a bit week, but all comments will be appreciated.
Carl