My system is currently a Pass Labs XP10 pre with X250 power amp, hands down the best system I've owned. I'm finally set again after a couple years on the merry-go-round. It's good to hear a variety of gear but sometimes you find something you'd like in your own system, or maybe we just want something different. It began with trying different speakers and not quite finding what I was looking for until hearing Revel F52's. They sounded good with my Conrad Johnson gear but they really come alive with current so something I didn't think would happen, I began looking and trying other gear. When I chanced upon a Threshold S300 I picked it up for it's classic status but I was really impressed with it's sound. And, surprisingly the S300 had a magical synergy with my CJ CT-6, however, I used a Van Alstine Fet Valve pre with the S300 for it's better focus and detail. So I began to wonder if the Threshold is this good, how good is current Pass Labs? The answer, much better, outstanding. So many words have been used to describe audio gear I struggle to find words to do justice to the Pass Labs. Although it's solid state the presentation resembles tubes in that "your there" sense, there's transparency and detail in spades. Most important to me the Pass is engaging and has what I call "musicality" meaning I get the sense of proper rhythm and melody. I'm really surprised that electronics this good isn't in more audio shops.