My question is pretty much what it says on the tin. I think the KPA is the best piece of gear I've heard in regards to minimizing quantization noise/distortion and I've demoed most amp VSTs up to the new NeuralDSP and the Howard Benson Plugin, as well as my old Axe-Fx standard. So I'm actually applauding Kemper for having so little of it. But if it CAN be better, I wanna know how
If you don't know what I mean by quantization noise, I mean a kind of bitcrushy sound in the high end of distorted profiles, kind of a "swoosh" that happens during the decay of a note, longer or shorter depending on how hard you play. Basically what the "Bit shaper" stomp does, but far more subtly. I recorded a little clip using an inferior VST amp sim (not the KPA) to demonstrate more clearly what it is if you don't know. Put on headphones and listen for the kind of sucking/swooping sound in the decay on these notes: SoundCloud
In the Kemper, I've noticed the QN is made more apparent by turning the Tube Shape up, so I've started turning that down from 3.3 to 0 on all my patches. I think that makes some difference, at least it can't hurt. I just wish that knob went further down than 0 This makes me think: What other little parameters could be hidden in the Kemper that helps this?
The only way I know of to combat quantization noise is dithering, but I can't really do that in realtime. But dithering is only used to mask existing QN, if one could keep it from appearing in the first place that would eliminate the need for dithering.
So yeah, if you have any tricks similar to my Tube Shape discovery, please let me know!