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Thanks very much for that Pedro5, I'll experiment.

Dapa12 - I was pretty depressed too to be honest, especially as I had no idea where to start trying to fix the issue as I haven't got too much experience with this type of thing. I hope you get sorted out too.

Right, I got myself to Maplin here in the UK and bought another audio interface to try (MAudio Mtrack with 2 XLR+1/4" combi inputs, not the Mtrack USB hub I already tried) so I could take the TRS line outs from the Kronos into the interface, and the interface into the Mac via USB. Clean audio so far ...

Yeah it's the only USB audio device connected, no aggregate device. The same issue happens with my MacBook Pro, and that's an earlier year model. The issue seems stable when first loading up/rebooting Logic, I played for a good 30 minutes without the problem, but changing some of the audio settings ...

it's as if the input via USB of the Kronos suddenly maxes out and causes the input meters within Logic to distort like crazy for a few seconds, and then it returns to normal for a while. I wil seriously need to think about selling the Kronos if I can't get this resolved, I simply can't use it for ...

Ok thanks.

Still going in direct via USB tonight, and I thought things were going great until the white noise thing happened twice. I need to find the reason for this.

Thanks

Thanks-so I connect the Kronos to the interface using TRS, and then the interface to the Mac using the USB, or with another cable?

SanderXpander - I have the M-Audio M-Track interface/hub, and that makes the issue worse (the robotic sound I mentioned in the op).

I haven't tried switching USB pots in the Mac, it didn't cross my mind as to whether that would make any difference! I'll certainly try that, thanks.

Ah sorry, no, the computer is always in the chain, but when taking the audio from the headphone socket (or L/R outs) to the Mac via audio interface, I get the constant whine in the background. The white noise issue (which worries me the most) comes from the audio outs on the back of the Kronos via ...

Hi apex, thanks for the quick reply - I'm not sure I know what you mean regarding the audio inputs being on; using the Mac system preferences I have selected Kronos as the input, and likewise in Logic. Do I need to disengage something? The sudden white noise issue doesn't happen when using the ...

Hi, I'll post this at the Logic forums too. I've just bought a Korg Kronos 2, and was very excited to get it connected to my iMac to start composing and recording music. What should be a very easy process is driving me mad with problems. I will be using Logic Pro X as my DAW. I have connected my ...