I have a few shows coming up, and I wanted to use my Roland SP-404SX to play and loop some samples. The only problem was that the music stand I was using was bulky and lacked a certain degree of elegance. Also, the ledge at the bottom of the tray was blocking the input jack, so I couldn't plug a microphone into the unit.
After experimenting with a few different ideas, I realized that if I removed the tray from the music stand, I might be able to attach the SP-404SX directly to the adjustable bracket at the top of the stand.
To make it work, I found a washer and nut that matched the bolt from the microphone stand. Then I removed the cover from the battery compartment on the back of the SP-404SX and drilled a hole in the center of it. The hole is the same size as the bolt.
Next I turned the cover over and glued a washer and a nut over the hole with super glue. This part was a little tricky. I had to make sure all of the holes lined up and that none were obstructed by excess glue. I also had to make sure I didn't glue my fingers together.
While the glue dried, I put a quarter inch of foam padding over bracket at the top of the microphone stand. Then I put the cover back on the battery compartment of the SP-404SX and screwed the bolt into the nut. This took a little bit of maneuvering as the hole is fairly small, but I managed to make it work.
I don't think that batteries will fit in the compartment now that I've made this modification, but I prefer using the AC adapter anyway. Also, I think it looks a lot better than the alternative.
With any luck, the whole thing will hold together!