Hello, I’m experiencing problems with the UMC404HD audio interface that I recently purchased. When monitoring either my input signal or already recorded audio I hear a lot of clicks and pops. It goes on in both the headphones and the main speakers. It seems to happen in the output rather than the input since they come at different times on different plays and I don’t see any spikes in the audio images. I swapped out my apogee duet2 for this in order to get more inputs in my home studio and I have never experienced this with the duet2. This happens both on my mid2012 MacBook and my late2012 iMac. If I create an aggregate device in Mac OS and use the computer output jack for monitoring everything is fine, input signal and recordings sound crystal clear. I have tried all buffer settings, tried using different ports, different cables, all that I could think of without any luck. I use Logic Pro X in Mac OS High Sierra on a mid 2012 i5 16gb ram 500gb ssd MacBook Pro and a late 2012 i7 24gb ram 1tb hd iMac. Please help, this thing is practically useless to me, and I was planning on buying the 8 input big brother but I have great concerns about doing so. Regards. Ask Fogh Nielsen.