Just a small heads up, Highscoresave.com has managed to get some Qsound chips and has 9 units in stock right now. If someone is interested on those, go get them before they run out.
https://highscoresave.com/q-sound-limited-darksoft-cps1-cps1.5-multi-kit/
https://highscoresave.com/q-sound-limited-darksoft-cps1-cps1.5-multi-kit/