Can you share your older Pass Labs experiences?

I have owned Pass amps for 40 years and very highly recommend them. I only recently moved to a tube amp. They are built like tanks, have high current designs, with excellent neutral / natural  sound.

Considering the feedback from others I’ll add some further thoughts. The XA lines are warm and natural with low power. The X lines are very powerful but less warm. Pairing is important, for the XA series with the right speaker and the X series the right preamp. It is a question of taste as to what you are looking for. An X amp can provide the power you need for electrostatics… but if you like a bit warmer presentation, then a warmer preamp than the Pass may be what you want… maybe an Audio Research, Collier Jackson, or VAC.