GumiElectronic

I modified my Otari MX5050BQII 1/4″ 4 track tape machine for sound on sound (SOS). The work is pretty simple. All you need to do is install a switch that enables/disables each track’s erase head. When the erase head is enabled, the machine records normally, erasing the prior signal before writing the new signal to […]

You can get a variety of nasty distortion/bit reduction effects by connecting pins 1–12 on U40, which is the R-100’s DAC chip. I tested all 12 pins, but I only ended up wiring pins 1–8 to a bank of switches on the R-100’s front panel. These bends turn the R-100 into a very dirty beast.

Various photos of the Roland CR-8000 modification:

Photos of the Kawai R-100 in various stages of bending.