Ensoniq MR Rack OS v1.53 ROM Firmware Upgrade KIT / New EPROM Final Update Chips

Roland GR-50 OS v1.14 EPROM Firmware Upgrade SET / New ROM Final Update Chips

Ensoniq SQ-80 OS v1.8 EPROM Firmware Upgrade SET [with hidden Waves enabled!]

Roland GR-1 OS v1.04 EPROM Firmware Upgrade KIT / Brand New ROM Update Chip

Sequential Circuits Prophet 600 OS SIX-08 EPROM Firmware Update KIT / New ROM

Ensoniq ASR-10 OS v1.5B EPROM Firmware Upgrade SET / New ROM Final Update Chips

Ensoniq ESQ-1 OS 3.5 EPROM Firmware Upgrade KIT / Brand New ROM Upgrade Chips