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	P11T	35.3 dB
	Spire	SPA04B4	35.3 dB
	Spire	5U213C1H3G	35.7 dB
	Titan	D9TBCu35R1	37.6 dB
	ArcticCooling	CuSilent2	37.9 dB
	Aopen	ACK7L	40.4 dB
	Zalman	CNPS7000A-Cu	42.2 dB
	Thermalright	SK-7	42.8 dB
	Thermalright	SLK-900A	43.0 dB
	Coolermaster	HSC-V62	43.7 dB
	Akasa	AK821	44.2 dB
	Spire	5F263	44.5 dB
	Zalman	All Flower HSF	47.4/28.9 dB
	Arkua	728M-7N01	48.2 dB
	Taisol	CGK760092	48.4 dB
	Cho-Liang	CB0307U-17	49.5 dB
	Thermalright	SK6+	50.4 dB
	Titan	TTC-CU9TB/SC	50.5 dB
	Taisol	CEK787172	50.7 dB
	nPowerTek	TTIC NPH-2	50.7 dB
	Arkua	628	50.7 dB
	Scythe	Kamakaze	51.0 dB
	Tocools	Novasonic	52.2 dB
	Tocools	Novasonic-AlCu	52.4 dB
	Thermal Integration	TI-V77L	53.0 dB
	Jetart	JAKS29	55.8 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	DC1206BMP	65.1 dB
	Thermalright	SLK800	66.2 dB
	Thermalright	AX-7	66.4 dB	louder

We measured the Zalman CNPS7000A-Cu without the Fanmate 1, at just over 42 dBA. At this noise level, it would be hard to hear the heatsink from outside of the case. Up next, thermal results.