Excuse me, Sire.
If your guitars DI signal is fed into a real tube amp and this tube amp produces then a similar and odd sounding result then the cause is *your* guitar signal and not the amp, be it a Kemper or a real tube. In earlier posts people pointed you *carefully* to the fact that your guitar signal is noisy and sub par.
It is not now. Did you hear a lot of noise on this last batch? But that has nothing to do with this anyway. This is not just an odd sound.
Sire? Really?