Moog Sub 37 Tribute Edition Analog Synthesizer 37-note velocity sensitive keyboard with aftertouch Classic Moog Ladder Filter with resonance, MultiDrive, and selectable filter slopes 2 modulation busses with assignable source and destinations 256 presets -16 banks of 16 patches Syncable arpeggiator and step sequencer One of the big attractions at the 2014 NAMM show was the Moog Sub 37 Tribute The Sub 37 Tribute includes updated features including Duo Mode, which allows oscillator 1 and oscillator 2 to be played independantly, programmable arpeggiator/step sequencer, two modulation busses with assignable source and destination options, access to 256 presets, and a 37-note velocity sensitive keyboard with aftertouch A fully featured mixer section contains dedicated controls and mutes for each sound source, as well as a level control for External audio input and Feedback - which feeds the output of the filter directly back to the input of the mixer Also included are the powerful DAHDSR envelopes from the Sub Phatty with panel control of each extended function