There is also 'modern' audio gear in the racks: two Avalon VT737 input channels, two Chandler Germanium compressors, a Demeter Stereo Tube Direct and two Urei 1176 compressors, along with some vintage Ibanez (AD230), Ensoniq (DP4), Korg (SDD2000) and Roland (SBF325) effects — an essential ingredient of the AIR sound from the beginning. In the studio itself, there's a Yamaha grand piano, a drum kit, a vibraphone, some kalimbas, a Neumann U47 microphone and Godin's collection of guitar and bass amps.more
Ensoniq DP4 Audio Effects Processor. There were four ESP DSP chips* designed into this unit, which means four distinct channels of processing.
It's being bragged about as one of Daft Punk's sources for vocoding on many of their tracks. I'd say if you're ever to look for an affordable external fx unit then this is it. You can algorithmicly chain 1 effect to 4 outs, 2 stereos or 4 mono's (and here you were wondering why Ensoniq called it dp4). Remarkable how it still sounds fresh today. If you are a firm fan of say Nexus 2 or Sylenth (or anything else that looks better than sounds good) try and route it through this. You'll be surprised. For me it's leads, strings and fx that get DP'd.. Or Quadroopled, or quadrophonia'd. Whatever