Classe "omega" vs Pass Labs X600

I'm in the process of buying an amp for my revel salons. i just sold an omicron and am looking to either get a classe omega which I am quite familiar with and love the sweetness and musicalness of it. I got to listemn to a Pass Labs X350 amp in California and was quite impressed. Unfortunatly there is no Pass Labs dealer in Illinois where I live so I cannot do an a-b comparison. As far as set-up goes i thinks the pass labs would be easier to deal with since they are monos and can be placed next to the speaker. The Omega is 280lbs and huge so their placement is limited. Hopefully someone out their has had dealings with both. I appreciate any and all feedback.
I will leave a list of associated equiptment since it may help give an overall idea of the sound that can be represented with either amp:
mark levinson 37 transport
meridian 861 pre-processor
revel salon speaker
valhalla interconects and speaker wire
sound applications xe 12
THANKS!!!!!