[ddgtr]

I've owned the x250.5 and upgraded to the newer x350.5 which I paired with an Odyssey Candela tube preamp and the sound is phenomenal. I do plan to try out one of Pass' new preamps as I haven't had a chance to listen to them in my system. Let me just say this about Pass Labs products: top notch quality, excellent sound, and above all awesome service and customer support. I wish more companies were running their businesses like this.