Acoustic Samples: Listen to this Heatsink!

Fan noise is moderate, and chances are that if you have a standard set of power supply and actively cooled videocard it won't stand out. To listen to this heatsink for yourself in operation, be sure to click on the little headphones icon below and download the Acoustic Sample MP3 file.

FrostyTech Acoustic Sampling Chamber
Standard Waveform view of a 10 second recording. Click on the headphones to listen to an MP3 recording of this heatsink in operation.

Sound Level Measurements:

Listening to the actual noise a heatsink makes allows you to hear what pure numbers alone cannot get across. To further emphasize FrostyTech's reliance on cold hard facts when evaluating a heatsink, we also take Decibel readings with a sound level meter. These results may be higher than the manufacturer's listed specs, but then again these are real world measurements. Measurements are made on the dB (A) scale.

FrostyTech Sound Level Results
-	Manufacturer	Model	Noise Level	Scale
	Verax (low RPM)	P14Cu	31.2 dB	Quiet
	Verax	P14	32.1 dB
	Verax	P11T	35.3 dB
	Spire	5U213C1H3G	35.7 dB
	Coolermaster	HHC-L61	42.2 dB
	Coolermaster	HSC-V62	43.7 dB
	Akasa	AK821	44.2 dB
	Spire	5F263	44.5 dB
	Akasa	Ag Mountain2Q	45.5 dB
	Taisol	CMK702	47.3 dB
	Zalman	All Flower HSF	47.4/28.9 dB
	Taisol	CGK760092	48.4 dB
	GlacialTech	Igloo 2310	49.4 dB
	Cho-Liang	CB0307U-17	49.5 dB
	Arkua	628	50.7 dB
	Noisecontrol	Silverado	50.8 dB
	Tocools	Novasonic	52.2 dB
	NengTyi	XPC5000	52.4 dB
	Spire	5T235	52.5 dB
	Eumax	B605-01	52.9 dB
	Thermal Integration	TI-V77L	53.0 dB
	GlacialTech	Igloo 2400	53.9 dB
	Eumax	EU01	55.4 dB
	Sibak	AE01625B	58.2 dB
	AVC	Tundra 2	58.4 dB
	Sibak	AC02625B	59.7 dB
	Coolermaster	HHC-001	59.9 dB
	Sibak	AC06725TH	62.4 dB
	Dynatron	DY1206BH-625	63.3 dB
	Dynatron	DC1206BMP	65.1 dB
	Thermalright	SLK800	66.2 dB
	Thermalright	AX-7	66.4 dB	louder

The Eumax B605-01 measures in at 52.9 dB which is just about dead center on this scale as far as these reference heatsinks are concerned. The noise is not high pitched, but seems to come from the airflow itself. Next up, thermal test results.