It is a drone synthesizer that can be played with 4 analog channels or 4 voices. You can play it with the touchpads or the buttons. The main difference between the touchpads and the buttons is that the former reacts accordingly to the level of pressure you force upon them with your finger. In fact, each channel is designed as a monophonic synth voice, and each has a sustain-release 2-stage envelope and a basic vca. In total, it has 4 envelopes and 4 vcas. Behind the VCA, there is a 4- channeled mixer. This mixer is used for the summing of these 4 voice channels. A modulation of frequency between the Oscillators 1-2 and the Oscillators 3-4 is possible. At the very end of this diagram, there is an RC filter that can adjust the frequency rate and tune of the synthesizer. It can run with a 9v DC adaptor or with batteries. The audio output is designed as a 1/8mm TS jack.

Technicial Specifications:

• 4 Polyphony

• 4 Analog Oscillator

• Touchpads and Buttons

• 4 Analog Envelope (Sustain, Release)

• 4 Analog VCA

• 4 Channel Mixer

• 1 Analog RC Filter

• FM Modulation

• Can work with adapter or 9V battery

• Mono Output (1/8mm jack output)

Youtube Video