I've posted the ProSolo, Pro2000, Pro4, and ProDCB Owner's Manuals in PDF (Version 3) at: www.synthtech.com I can email you these in MS Word7 if you need to. The manuals for individual internal kits I can snail mail. Othere MIDI to CV converters are available from PAiA, KJK Electronics, and Encore. Paul Schreiber Synthesis Technology