Question Bitfenix bwg650M 650w noise

No, it's not normal. Bifenix Whisper 650M usually is a pretty silent unit.
48dB in average my room is so quiet . It makes the mouse click sound noisy. idk I stopped all the fans except CPU fan and made it under 500 RPM. I can hear the sound from the PSU as it seems in the audio. what do you think?