Just finished to solder my xOx Heart pcb to make it work. Not totally finished but I could tune it and use knobs, sequenced by A4.
Modular TB 303 clone that sounds better than A4 in that domain for sure.
After many hours of soldering and wtf moments. Can’t believe it works now.
Cost around 100€ / 115$.
http://www.openmusiclabs.com/projects/x0x-heart/index.html
@acidhouseforall
Edit : first recording