Haven't heard your speakers, but owned the MkII & now owner of Mk III Pathos. One of the best amps I've heard overall, esp above the bass range. About as close to faultless as you'll hear. The III is a good upgrade from the II. I haven't used the Pathos fullrange, but rather above 260 Hz.
Do watch out for system sensitivity. I'm suspicious the Pathos' input sensitivity is lower than spec, but I could be wrong. On my Comcast DVR I've been on the edge a few times. Been as reliable as a stone.
