I use my Rowland Concentra amplifier to drive ProAc 2.5 speakers with a Meridian 508.24 as the source. I do not have any experience with the Dunlavy so I cannot comment. The Rowland amp does work okay with the ProAc speakers.
Pass Aleph 5-Wadia 8XX OR Concentra-FMJ 23
I will be driving Dunlavy SC-II's on a CD only system. Relaxed detail, 3-D deep and wide soundstage, non fetiguing sound is my preferance. Verdi to Mettalica at a blink of an eye but not very high DBL's. I have auditioned Pass O monos in the past and I was floored, but not the Aleph 5. I realy liked both the Wadia 8XX and the Arcam FMJ 23. I never had the chance to audition any Rowland products but I hear only good things about the Cancentra I or II. I will purchase used from Audiogon. We have no Hi-End stores close by so your ideas would be pivotal. Thank you in advance Ted