Which scroll saw model did you measure at 14dBa?
Agreed on all the tuning to reduce vibration.
Some background: I'm a mechanical engineer, which is why I love data. We're slowly replacing all our tools and appliances with quieter ones, in part to make them safer for kids (and adults). We just switched our dust collection to a Harvey gyroair, which is (for some settings) quieter than our prior cyclonic system. I wear hearing protection pretty much all the time in the shop, even when hand carving.