When the PA4x first came out, I was told there's not much difference between the 3x and the 4x by more than a few people. Now, a year or so later, I hear nothing but accolades for this machine.....how it beats everything on the market right now.....how it even keeps improving with updates.

So......IS it noticeably all around better than the 3x? I ask this because if most of you agree it is, I'm going to take a drive up to Frank's place and hear it in person (hopefully along with the SD9).

Mark