Ok, I tried with Tonelib Jam and Presonus Studio.
Tonelib Jam has less latency but sounds very (= too) “thumpy”.
Studio sounds much better but has lots of latency. Still it’s a litle thumpy, but for practicing that would be acceptable.
Same ASIO setting.
Strange!
Do you have an alternative plugin, so I can test this? This way I can verify if it’s Kiloheartz or something else…
