Pass are great amps in the right system or personal tastes. I jumped on the bandwagon several months ago and purchased a X150.8. My 1st impressions were, powerful, dynamic, very nice looking amp, clean crisp sound but lacked in midrange richness. I changed tubes in my preamp to help with some midrange energy I was experiencing even with Sonus Faber Olympica iii. It helped but overall I couldn't warm up to the amp. Hated to sell and wanted to like this amp but just couldn't get it to work in my system. YMMV. Overall it's a very good amp and compared to pricier products it's a no brainer. Extremely well built and affordable.
