This thing just really isn't working great for me. And seems with the little info out there, it is similar for others. Using the fx part select for the beat fx alters the sound (even when no fx are active). Like what? How is that causing that much interference to the sound? Often involving clicking and popping sounds or like the signal keeps cutting in and out very fast. Sometimes it will "work" for 30 mins. It just depends on the song maybe? Same setup works fine with ddj400. Rekordbox keeps bugging out with the new updates that haven't seemed to fix anything but again, only on the flx10 really. And the stems feature is very lackluster often resulting in fudged up stems that introduce crackling and pops too. Gain can be low, volume low and it is still there. It is either a straight up hardware or software problem. Either way it is unacceptable. Wondering if all 100 of us are having problems or if a lot of units are just faulty. The FLX10 is great in theory and when stuff does work, but it's irritating as hell. I have to bring my 400 to my next gig because I can't rely on this thing to work properly and it's killing my desire to dj because it's just such a headache. The $1700 price tag also sucks for there to be issues like this, and my "workflow" has changed to heavily involve stems. It's better and more fun than the 400 but also just so so much worse in it's current state