If you are looking for a fun and affordable mono synth without sacrificing features, Korg has you covered with this one. Until the end of December you can get this Korg Monologue Analog Synthesizer for only $199 from Alto Music. With 25 keys this fully customizable monophonic analog synthesizer has the classic raspy sound that Korg is known for but with some unique sounds of its own. It is a great mono synth to add to any studio. This synth is compact and powerful enough to add to your live arsenal.