Welcome!
Does it really smell bad? Like burnt plastic or burnt cable? Is there smoke coming out?
If yes: Return the unit.
If not, I would wait a few days.
Hello,
I noticed same thing, when I first used kemper rack. It was only for the first time and it never appeared again after that.
My kemper is still working fine after one month of extensive usage. 
well a slight smell should be normal due to some material undergoing heat. if it goes on or gets worst, contact the support team. otherwise it should be ok
I think the source of the smell is the packaging or the paint they used ,had the same smell when I got my lunchbox new. I kind of guessed then that something burnt inside. But now Kemper is still alive and the smell is gone.
Thanks All!
How I Can Know that the Kemper is sounding properly? For example the distortions?
Your ears should tell you if it sounds awesome or not.
you see they also profile tube smell - so what you are smelling is the Alpha testing version.... 
Check your XLR return inputs, try to profile something or just stick your mic into xlr and switch on profiling mode. You won't notice this until you start to do some profiling, but many of users don't do profling so they don't even know abut this problem with some units.
I had some kind of smell, and my return inputs have distorted faulty sound. Maybe some cheap elect. component inside was going to fail... as the sound gets worse on inputs when KPA warms up.
Display MoreHello, I'm new here, Yesterday I Bought a Kemper, and when i'm conect it and play for an hour aprox, the kemper issued a rare smell, Like a Plastic or something like that... But the kemper works fine, its sound god (I Think).
This smell is because the Kemper is New? it's normal?
Or I Have to return it for the garanty for avoid futures problems?
(Sorry for my english, i'm speak spanish).
Best Regards.
I had a similar situation the first time I played through my Kemper. It sounded so damn good that I must have gotten excited and had an accident..........Just kidding. It is probably the same thing as "new car scent" which will fade with playing time 
