US E-MU Systems B-3 Hammond B3 Emu PROTEUS 2000 Sample Expansion Board Sound ROM
E-MU Systems B-3 (Hammond B3) Sample Expansion Board Sound ROM Card compatible with Proteus-2000-Family synths. This ROM is supposed to work in ALL Proteus-2000-class synthesizers (rack-mount modules, command stations / drum machines, and keyboards) regardless of OS version so long as you have an UNUSED / EMPTY ROM SLOT.