Retiring my ML 333 for a Krell 300c or Pass x350?

I have never heard a sober review of the Krell family where it does not say you can't beat it's grip on the bass drivers, AND say it has a bit of the strained treble that can result in listener fatigue.

The Pass lacks the Krell's bass death grip, but offers, IMO, a smoother mid and sweeter highs. It just so happens a friend has my Pass over right now where he is comparing it to his Levinson. He wants to buy the Pass.

Hi, what dont you like about the 333. I would chose the Krell FPB 300C. Another awesome solid state amp is the Mccormack DNA 2 Delux.

According to the Levinson owner that has my Pass X, the Pass opens up new inner detail.