That is ROLAND'S first synthesizer and the first to come out of Japan ( 1973 ) . It does not have the well known ROLAND sound but it's still ok for a single oscillator synth . I have one and I like mine , I use only analogue synths . I can't stand MIDI , it's crap . Why do you want to sell it ? According to my book the SH-2000 sells for about $175 so I wouldn't expect too much . Everyone has got to have the more popular ROLAND gear like the SH-101 , TB-303 , MC-202 , TR-808 , and of course the JUPITER series . I'll offer $150 , I wouldn't mind having 2 of them .