This machine has been a staple of house and techno music since the 1980s. It all started when Frankie Knuckles played 909 tracks at the Warehouse Club in snowballed from there. The next time you're at a club and feel that damn kick drum in the pit of your stomach -- that's a 909.

The 909 is an analog / digital hybrid drum machine. The cymbals and hi-hats were sampled at 6-bit resolution, giving them a distinctive edgy sound. Only 10,000 of these machines were you have one?