Post your views and questions about the Akai MPC2500
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By Menco Sun Dec 06, 2020 9:09 am
Probably a hardware issue. Which part exactly I wouldn't know, sorry. Am not that technical. You can always try to install the free JJOS, but I think it doesn't change that much.
By railspike Thu Jan 14, 2021 8:54 pm
I had this issue when I first got my 2500, and being inexperienced with MPC's, I just used it in mono for a while. But I did end up fixing it:

I took the casing off the MPC (take off the side pieces then the top plate), what I found is that the connection at the top right near the main volume pot was just not plugged in properly. I unplugged it and replugged it in properly and voila, both channels working from the stereo outs and the headphones.

Hopefully this helps!