“The Yamaha DX21 is a digital controlled bi-timbral programmable analog synthesizer with a four operator synth voice generator which was released in 1985. It uses sine wave-based frequency modulation synthesis.” Click here to visit listing on eBay
“The Yamaha DX21 is a digital controlled bi-timbral programmable analog synthesizer with a four operator synth voice generator which was released in 1985. It uses sine wave-based frequency modulation synthesis.” Click here to visit listing on eBay