I’ve used Flipper Fidelity in the past, but think either supplier/product is very similar.
They’re good, but you need to turn up the volume a bit and the audio’s only as good as the hardware can generate - not sure CFTBL is one I’d choose to pimp with better speakers unless the originals were knackered! For better audio output you should consider Pinsound:
https://www.pinsound.org/pinballs/wpc-alpha-dmd/creature-from-the-black-lagoon/