21st-century overhaul/rewrite for the classic but rare Kawai SX-240 which makes it possible to control the parameters with any MIDI faderbox. Written by Bob Grieb of tauntek.com.
- CC control of SX-240 parameters (upper and lower voices) [CC parameter sheet, PDF]
- MIDI On/Off for lower voices
- Synth remembers the MIDI channel even after switching it off
- Patch and sequence save/restore via MIDI Sysex [Format sheet, PDF]
Note: The code is also available for download via Bob’s page, so you could burn it yourself. When you are buying the firmware chip here, the firmware author gets a share – meaning that you are supporting the work of a brilliant engineer with a true love for vintage synth gear.
The chipset, consisting of two 27C256 programmed chips, is available for a price of €40 plus shipping; this includes a license fee for the software to the author, Bob Grieb.
Shipping is done as an unregistered first-class letter; this is €2,50 within Germany, and €5 to European destinations. If you would like registered shipping with a tracking code, add another €2,50.
EU companies may get an invoice without V.A.T, in that case, please state your EU Tax ID number.
Deliveries to non-EU destinations may cause additional local taxes and customs charges.
To order, send me your e-mail, and your shipping address – I’ll prepare a Paypal invoice for you, and send the chips as soon as the invoice has been paid.
You may return the chips within 14 days after receiving them for a full refund; please bear the return shipping costs.