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Casio RZ-1 Expansion ROM

This modification to the wonderful Casio RZ-1 adds up to fifteen sound banks of drum hits to the RZ-1 factory presets. The current bank is selected using a rotary knob or by sending a MIDI command.

Casio RZ-1 with Sound band expansion mod fitted
The new ROM PCBs. The firmware gets upgraded to 1.96u too.

The mod kit is available on eBay for £99.95. You can download the MIDI files and instructions here.