Yamaha SK30, Analog Symphonic Synthesizer

via this auction
"This unit is massive, I cannot understate that. It is probably the same size as the CS-70, and it uses a lot of the same internal components as the CS-70 and CS-80. The big draw you hear for this synth is the String sounds, and there is a reason for that. It is the best string sound I've ever heard, and I've heard solinas, crumars, arps... There is just no comparison and the main reason is that not only do you have 3 preset string sounds but you also have a 2 OSC polyphonic analog synth built into the unit as well that is fully customizable. This polysynth section is made to be played in tandem with the string section and the two together create a very lush, deep string sound. This section also has an analog ensemble and tremelo effect that you can run it through to deepen it up even further. The polysynth section can be played alone as well and it has your standard square wave and saw tooth settings, and it sounds wonderful. If that wasn't enough, there is also an organ section (also has separate tremelo and ensemble effects) that sounds fantastic as well. You can get amazing analog-sounding emulations of any organ, especially a B3, and it has several draw bars. It even has a leslie connection on the back if you want to hook it up to one of those speakers. Again, the feature set is not over. There is also a ripping, separate monophonic synth section that reminds me a lot of the Yamaha CS-5 or CS-10 (Think really early Depeche Mode basslines and leads). Very buzzy, cool sounding resonate section with many different features including glide, portamento and PWM, etc. This part has CV-in/out so you can get a Midi to CV box and hook it up to a modern MIDI computer or sequencer. I used it mostly for huge basslines but the portamento makes for some great leads as well. All of these sections are stackable and you can also do keyboard splits (say, if you want the polysynth on the right and the organ on the left. Buying this is like getting 4 very nice instruments in one."