I'd take a look at UDG's bags. I use one for carrying all my stuff around, and I'm pretty sure the mixer would fit into the big pouch on the front large pocket. I don't have to carry anything that large around, I usually keep my crane stand, dicers, and various cables in that pocket but I'm pretty sure the mixer would fit in there well. I don't have a similar mixer to test fit in there size wise.

I have the UDG Digi bag and swear by it.
http://turntablelab.com/products/udg...FXRp7AodYVoA3g