Ploytec (Ploytec.com) develops chipsets for USB MIDI and audio as well as the PL2, analog synthesizer module and the ONE.2 MIDI CLOCK TAP TEMPO PEDAL.
PL2
The PL2 is an analog synthesizer module with a digital (125kHz, state variable) multimode filter, offering unique saturation. That filter’s followed by a second analog lowpass filter. It comes in two versions:
The original black PL2 is MIDI powered via its MIDI input. It works with almost any MIDI equipped keyboard or MIDI interface. The built-in micro USB connector doesn’t contain USB functionality, but can be used for additional power when needed.