Noise Level Results
Audio testing was a bit of a letdown. While I could obviously hear this cooler across the room, even at stock levels, the 32 decibels of noise level leaves the NZXT Kraken X40 slightly below average and louder than the Corsair versions of this cooler.
When you set the software to the Extreme mode and allow the fans to power up fully, the noise is not shy at this point. Dropping way down to near the bottom of the list, a 58 decibel level here is on the verge of annoying, even when inside of the chassis. To be honest, I was gaming with a headset through part of this testing and could easily hear the X40 at these settings right over the game track and chat going on.