SYSTEM-500 540

The 540 Dual Envelope Generator and LFO (low frequency oscillator) is a multi-purpose modulation source. This unit features two independent ADSR (attack, decay, sustain, release) envelope sections that produce variable voltages for controlling other Eurorack format synthesizer modules such as oscillators, filters, and VCAs. Each section can be triggered externally, internally, or manually with dedicated jacks for each envelope, as well as an inverted output. Additionally, the 540 includes a voltage controlled LFO with 5 waveform outputs. Front panel controls adjust both frequency and delay time of the LFO start. Delay and reset can be triggered from either envelope 1 or 2. Controllers:ATTACK sliderDECAY sliderSUSTAIN sliderRELEASE sliderMANUAL switchFAST/SLOW switchEXTERNAL/CYCLE switchKEYBOARD TRIGGER switchDELAY TRIGGER switchFREQUENCY RANGE switchFREQUENCY knobDELAY knob Connectors:EXTERNAL jack: Miniature phone typeENVELOPE 1 jack: Miniature phone typeENVELOPE 2 jack: Miniature phone typeINVERTED ENVELOPE jack: Miniature phone typeCV FREQUENCY jack: Miniature phone typeSQUARE WAVE jack: Miniature phone typeTRIANGLE WAVE jack: Miniature phone typeSAW WAVE jack: Miniature phone typeINVERTED SAW WAVE jack: Miniature phone typeSINE WAVE jack: Miniature phone type http://www.rolandus.com/products/system-500_540/