Hades does a fantastic Job!
A monophonic bass synthesizer for eurorack or standalone use.
The MIDI connection will only work with external 15V 1A psu.
Otherwise it´s possible to power over the regular eurorack rail.
The sound is pretty warm with clearness and bottom!
The feeling of the filter is very smooth and leads into self oscillation.
The housing is handcrafted and i´m using it in standalone mode coupled with
eurorack gear or a MIDI sequencer.
https://www.dreadbox-fx.com/product/hades-diy-kit/
Put 1K resistor here for both, eurorack and external powering. eurorack only is just a jumper and external only is blank! 
