GS Music – GS Apollo Analog Synthesizer


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SKU: GSM-APOLLO Categories: ,
Brands: GS Music


GS Music – GS Apollo Analog Synthesizer


The GS Apollo is a semi-modular subtractive synthesis analog synthesizer. The sound is generated in a totally analog way, with two voltage controlled oscillators (VCO), a mixer (mixer), a voltage controlled filter (VCF) and a voltage controlled amplifier (VCA). The control signals are digitally generated by a microcontroller, which is capable of processing three low-frequency oscillators (LFO) and two envelopes (EG) of the ADSR type. In addition, it incorporates an effects processor with chorus and delay.
The GS Apollo interface was designed to be simple and intuitive. It features 21 knobs, 3 pushbuttons and 5 CV inputs. It can generate a large variety of sounds.


  • Polyphony: Monophonic, last note priority / Duophonic, lowest note priority and la última
  • Oscillators: 2 voltage controlled analog oscillators (VCO) with sub oscillators.
  • Waveforms: Triangular / Saw-Tri / Sawtooth / Pulse
  • Filter: (VCF) 24dB / Oct low pass filter (4 poles) with resonance control.
  • 2 * envelopes (Attack, Decay, Sustain, Release)
  • LFO: 3**
  • Delay Effects, Chorus
  • LFO Waveforms: Triangular / Ramp Up / Ramp Down • Square
  • Presets: 32
  • CV inputs: Gate / Pitch / Cutoff / Amp Gain / Audio Input
  • Connections: MIDI IN, MIDI OUT, MIDI Thru , Audio Output (1/4 ”TRS balanced plug), USB (with galvanic isolation)
  • Power Supply: DC 12V 1A
  • Consumption: 6 W
  • Package Dimensions: 330mm x 140mm x 81mm
  • Package Weight: 1.6 kg
  • Package Dimensions: 398mm x 207mm x 168mm
  • Package Weight: 2.0 kg
* From the panel it is only possible to control both envelopes simultaneously. To control them independently the corresponding MIDI CCs must be used.
** Only one LFO is controllable from the panel. To access the other LFOs, the corresponding MIDI CCs must be used.