There is an entire aftermarket for OP-1 USB and audio I/O boards because they fail so often, both physically and electronically, and somewhat the same for the b

There is an entire aftermarket for OP-1 USB and audio I/O boards because they fail so often, both physically and electronically, and somewhat the same for the buttons and knobs. But yes, the milled aluminum is solid. I still love the OP-1 though. Nothing quite like it.