I just bought a Roland A-01k because I like the chiptuned sounds it makes, and I want to connect it to my mixer. Problem is, there's only a headphones jack! I tried connecting it like a line in device, but it's too quiet. When I connect it as a mic in, it works, but I have to boost the gain so much that it hisses. How do I get a clean sound into my mixer?
Plug headphones into the output. Do they work? If so, I think the problem is with the cable you are using between the A-01k and your mixer. You need a stereo mini-jack leading to TWO normal jack plugs (or whatever your mixer takes). If there's any stereo information in the A-01k output, connect to TWO channels of your mixes, panned hard R and hard L. If not, you can use just one, ignoring the other.