Ex-Demor Serial number: 19190903044 This Waldorf Quantum 8-Voice Hybrid Polysynth exhibits wear commensurate with an ex display model. It has been quality checked by one of our team of repair technicians to ensure that it meets a high playing standard. Any promotional materials offers software or subscriptions available when purchased as new may not be available with this Ex-Demo product. The flagship synth. Take sound production to the next level. The Waldorf Quantum 8-Voice Hybrid Polysynth combines incredible build quality with awesome innovation. Meticulously designed with enormous sound design capabilities. You can combine the best of both worlds with the use of the three digital oscillators and two analogue filters. With this hybrid polyphonic synthesizer you can produce a dynamic and unique sound. In the centre of the Quantum lies a responsive touch display. This allows you to adjust certain parameters with exceptional visual detail. And provides a display for the features of your sound.