I am using Pass X260.8 amps with my Strads and really enjoy the combination. They have more than enough power to fully load my 17 X 34 X 9 room. They stay in Class A up to 34 wpc, which means that I'm listening in Class A most of the time. The amps are detailed, dynamic, and on the warmish side. I use a Pass Labs X22 preamp and X17 phono. In my experience, whenever I use electronics from the same manufacturer there is a special synergy. While there are many good options, Pass Labs is hard to beat for the money.