





Supposedly it uses some light-blocking trick to produce the closed hat and when the pedal is lifted up it unblocks the light and produces the open sound. Pretty interesting stuff.
Here's the inside of an SDSV pad...

I am missing the bass drum pad, which I'm on the lookout for, but seriously all this thing is is a piece of plywood with a piezo pickup, Lexan polycarbonate sheet and formed aluminum edging. Besides the acrylic backing, I could probably make one of these if need be...
Here's a cymbal that came with my lot that I can't identify, but it has a piezo pickup at the bell and is mounted on a heavy spring. I had to re-wire the XLR plug tonight to get it to produce signal; not sure how it worked before...



