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I have a Casio PX-S1000, which I also use as a MIDI controller on Pianoteq 8. I noticed that even with an ASIO driver, the latency is still higher than with other MIDI controllers. My research then revealed that another user had noticed the same thing and found out by chance that the latency caused by the PX-S1000 depends on the sound selected on the piano. The latency is particularly high when the main piano sound is selected. If you select a different sound (e.g. organ), the additional latency added by the controller is significantly reduced, making it much easier to play overall. You then have almost direct control. If sound preset 1 remains selected, the latency is noticeably distracting. Is this known and documented somewhere? Or is there even a firmware update that fixes this effect? And I am interested in a PX-S5000 or PX-S7000. Do their MIDI implementations have the same behavior or are they even better MIDI controllers?

I recently purchased a CTK - 2400 with the hopes of learning how to play. I tried using the keyboard with garageband, synthesia and logic on my mac but there seems to be about a half second of latency that is really throwing my timing off and I cannot seem to figure out how to resolve. I tried changing the buffering and it was no help. Any help would be very appreciated (im a total noob).