I bought an Ion idm02, with a dicky power supply, for peanuts. (from my usual source of bargains)
Basically, these are Alesis SR-16 units, but with trigger inputs so you can make an electronic drumkit with this as the controller.
They also function EXACTLY the same as an SR-16, which is my digital drum machine of choice..
This one has an issue with the power socket: wobbling the power plug makes it go on and off. Either the socket needs “tweaking” to make a better contact, or it’s come loose and needs re-soldering.
Either way not difficult.
This project is probably next, now I have shifted the Boss DS-330, MicroKorg XL and Alesis SR-16 (the one where I fixed the PSU).
My balance is looking decidedly healthy.
I need to buy some stuff, or I’ll end up spending it on a clutch replacement on the Megane..!