DRONX is a special mixer designed especially for the DRONE38 module; if has 6 input channels (so you can connect two DRONE38 modules) and offers some sound processing capabilities: A tone control with bass and treble control, a distortion, and finally a dual delay with different algorithms. Two insert points allow to add up to two more audio effects to the internal signal chain. Together with the DRONE38 module(s) you get a quite nice drone synth for dense, dark soundscapes.
Of course, it can be used with any other sound sources!
You can find more information about this module on the AE Modular Wiki.
(Price without VAT; for buyers inside the EU 19% VAT will be added to the shown price = 89,25€)