Doepfer is an audio hardware manufacturer which spearheaded the production and popularity of synthesizer modules, analog modular systems, and MIDI sequencers. Gaining acclaim in 1977 when Dieter Doepfer introduced a DIY Voltage Controlled Phaser (VCP) module, the company went on to play an integral role in the development of MIDI technologies during the 1980s and the legendary A-100 and MS-404 units in 1995. Ubiquitous within the community, Doepfer's mark on the hardware and very development of modular synthesis cannot be overstated. Find them here on Reverb.