Include also v2.0 software, turning your Hr16 into Hr16b. Alesis Hr16/16B. reverse eprom 16 will go into the socket marked U15.
Alesis HR16 / HR16B Soundchip Upgrade Roland TR-808 V2 + Firmware 2.0 Eprom Rom
Alesis hr16 / hr16b firmware upgrade version 2.0 incl. Sound Chip latest OS Ic
Alesis HR16 / HR16B Soundchip Upgrade Roland CR-78, Boss DR-55 & Emu Drumulator
Alesis HR16 / HR16B Firmware Upgrade Version 2.0 Incl. Sound Chip Latest OS IC
Alesis HR16 / HR16B Soundchip Upgrade with Casio RZ-1 + Roland CR78 Cheetah MD16
Alesis HR16 / HR16B Soundchip Upgrade Vermona DRM1 Kit incl. Firmware 2.0 Eprom