The System 1 is a readymade basic configuration by Analogue Systems consisting of modules needed for a well-equipped monophonic synthesizer with CV/gate control. With the System 1 you can easily get bass and lead synth sounds as well as effect and drums sounds, all in pristine quality as you would expect of an Analogue Systems circuit.This version of the System 1 comes in a 6 U/19”-frame suited for being built into a studio rack or a flight case.RS-15 case containing the following modules: RS-20 Ring Mod RS-95e High End VCO RS-95e High End VCO RS-100 VCF (LPF) RS-110 Multi-mode Filter RS-180 VCA RS-180 VCA RS-60 VC ADSR RS-60 VC ADSR RS-85 VC LFO RS-40 Sample + Hold w/Noise RS-160 CV Mixer RS-165 Audio Mixer RS-230 CV Buffer / Inverter RS-170 Multiple