Waldorf WDF-RKT-1 Rocket Desktop Synthesizer Analog multimode-filter (VCF) with low pass/band pass/high pass Highly flexible oscillator-section with pulse width modulation and hard sync Up to 8 oscillators in unison for chords or ultra high density Sawtooth Low frequency oscillator (LFO) for modulation Envelopes for VCA, VCF and sync