Raphabazz8Â months ago+2200.6dB at this flow rate? And in the tested "...only at high revolutions does it become audible..."? đShow in original language (German)Anonymous8Â months ago+110 Helpful answerI let it run at full throttle, it's not quiet, but I bought it as a rack fan, so it doesn't matter so muchShow in original language (German)CommentCysteK8Â months ago000Is a wrong specification...Certainly not max and the unit would be sonet according to the manufacturer...Show in original language (German)Comment