The New SuperJX‑flash Upgrade Is Available!
This is the pinnacle of Super JX upgrades. This new board is easy as poping in an IC chip and is an unbelievable piece of technology. It allows you to update the firmware on your JX‑10 or MKS‑70 using only MIDI cables! Daaaauuuumn! Now that's a cool invention!!! It also gives you access to 16 banks of cartridge data which is like having 16 M‑64C cartridges onboard all the time. There's also a version which has 32 banks. Unreal! No more EPROM's are needed for firmware updates. Just send a *.SYX file to the synth
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