frankly, the modwright pre w/ outboard PS is excellent, should be a nice match. but if you have any ?s re: if the 60wpc is enough, get the 100wpc unit. ---i'lll cover this in a review i have coming on PFO in a week on the 60.5s. but short answer, there's so little distortion on the signal its easy to crank the volume, resulting in needing more headroom.
i do like to listen loud, but not that loud, and not that big a room.
you'll regret spending the money one time. you'll regret owning an underpowered amp the entire time.