As I was looking for a compact and USB-powered multiFX box to go with my synth, I settled with the CDR-70, though the dual 5.35 jacks on the side were an issue for me, as it takes too much space, and that’s too much cables for my compact synth setup.
So I worked on a simple mod to add stereo 3.5mm input and outputs, that can be used in place of the side jacks. Turned out that it wasn’t too difficult to do as there’s some space inside the pedal and it can be easily disassembled. Here’s how it went:
First step was to open the pedal and search for suitable space. I settled for the space just below the 9V power plug, as there’s space for the two 3.5mm jack sockets side by side, and it would not be in the way of an angled USB cable.
Then I drilled the holes, at a very slow speed to not damage anything inside:
Finally, wire everything and we’re done:
That’s it! Now with angled USB and 3.5mm cable its footprint is really small, perfect for portable setups 
