A British manufacturer of modular synthesizer gear. Analogue Systems' main product line consists of the RS Integrator modular series, containing an extensive line-up of modules and pre-packaged systems. All of the series is made for the Eurorack format. The company also makes keyboard controllers. An unusual item in the catalog is the "French Connection" keyboard, which incorporates the sliding-ring controller originally used on the Ondes Martenot. The French Connection was originally commissioned by Radiohead's Jonny Greenwood.