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We measure from a distance of around 1 meter from the closed chassis and 4 foot from the ground to mirror a real world situation. Ambient noise in the room measures close to the limits of our sound meter at 30dBa.
We use the integrated 3-step fan controller to measure noise levels at 5V, 7V and 12V. The CPU and GPU fans are manually disconnected to eliminate unwanted noise.
KitGuru noise guide
10dBA – Normal Breathing/Rustling Leaves
20-25dBA – Whisper
30dBA – High Quality Computer fan
40dBA – A Bubbling Brook, or a Refridgerator
50dBA – Normal Conversation
60dBA – Laughter
70dBA – Vacuum Cleaner or Hairdryer
80dBA – City Traffic or a Garbage Disposal
90dBA – Motorcycle or Lawnmower
100dBA – MP3 player at maximum output
110dBA – Orchestra
120dBA – Front row rock concert/Jet Engine
130dBA – Threshold of Pain
140dBA – Military Jet takeoff/Gunshot (close range)
160dBA – Instant Perforation of eardrum
Running at 5V the fans are nearly inaudible and fell below the lower limits of our meter.
Increasing the voltage to 12V the fans produced a total of 36.5 dBa. Though audible, we would not classify the fans as loud or intrusive.
I just recently purchased this case, in orange, and transferred my parts from another case I liked, but not happy with. This case, by a long stretch is definitely worth the money and the fact that I bought the orange one, which originally sparked my interest in the case to begin with. The reason why it sparked my interest, is because it reminds of the 70’s with orange painted big engine block cars, which you don’t find today!