Bluetrain, I see you have a Parasound Halo A21 there. How do you like it? I have one. I replaced it with my Pass X250 and gave the A21 to my son to use for now. I love the attack of the A21, it is much better than my Pass in that respect. The leading edge of guitar and piano is much more real, where the Pass smooths that over and many smooth or liquid sounding amps do. I miss that in the Pass and it is my only real complaint about the X250. The Ayre VX-5 that I listened to had the same problem.