With the Subharmonicon, Moog expands its semi-modular instruments with an expressive analog synthesizer. No less than two main oscillators and four sub-oscillators provide a very broad and radiant sound foundation. This results in lush chords, pulsating sound carpets, massive basslines, and generic sounds. The waveforms of the main oscillators are switchable between square, sawtooth, and a mixture. The four sub-oscillators each have the sawtooth waveform, but their frequency and level are freely definable. What should not be missing in a Moog synthesizer is the famous 24dB lowpass filter, it works in a wide frequency range and goes down low, the resonance extends into self-oscillation. Two attack/decay envelopes are permanently assigned to filter and VCA respectively, in this way sounds can be realized that range from percussive to floating in to long decaying. The Subharmonicon has no direct ancestor in that sense, but is largely inspired by the historical sound generators Trautonium (1930), Rythmicon (1931) and the Schillinger system (also 1930s).