<strong>Yamaha DX-1 synthesizer only 140&nbsp;made...</strong>

Among Yamaha&#8217;s DX line of synthesizers, the Yamah DX-1 is definitely the biggest and most expensive synthesizer out there. Only 140 were made by Yamaha back in 1984 to 1985 but it is rumored that there are maybe 210 made. Expect to find these syn...