My unit has the same issue as @James Freeman has described and demonstrated. As he has written it can be heard best with the guitar tone fully closed, but it can also be heard with a "normal" sound. I tested it with AC15/AC30/AC20 and the Deluxe Reverb.
It can clearly be heard with studio monnitors (with cab sim), but it is still there without cab sim and a power amp and guitar cabinet, just not as pronounced.
I also think that there is something wrong. No amp I have played in almost 30 years sounds like that.
And the last two tube amp that I own (DIY AC-15 and Fender style) definitely do not sould like that! I have an Amp/Cabinet switcher and can easily switch between the amps and the Axe FX and use them with the same cabinet. So the amps and the Axe FX can be easily compared. And then it is very clear to me that the amps don't sound like that.
Actually, I am quite shocked that Cliff claims to not hear anything wrong. My hearing is not very sensititve to details, with most of the firmware updates I don't hear any changes, but this time even I can clearly hear that something is not right.
It can clearly be heard with studio monnitors (with cab sim), but it is still there without cab sim and a power amp and guitar cabinet, just not as pronounced.
I also think that there is something wrong. No amp I have played in almost 30 years sounds like that.
And the last two tube amp that I own (DIY AC-15 and Fender style) definitely do not sould like that! I have an Amp/Cabinet switcher and can easily switch between the amps and the Axe FX and use them with the same cabinet. So the amps and the Axe FX can be easily compared. And then it is very clear to me that the amps don't sound like that.
Actually, I am quite shocked that Cliff claims to not hear anything wrong. My hearing is not very sensititve to details, with most of the firmware updates I don't hear any changes, but this time even I can clearly hear that something is not right.

