Alesis HR-16: custom sound roms
Replaced the internal sound eproms of the cheesy sounding machine from 1987. The new roms include 2*48 sounds of Classic drummachines like TR-707, TR-727, 909, Linndrum, DMX, RZ-1 etc. Still needs the overall pitch adjustment mod.
Thanks to Alex Erlewein for burning the eproms and the help!
more info here: