Output Noise

For these measurements we used a high quality CEM-8852 Sound DB Meter which was installed 50 cm away from the NAS. The ambient noise in our lab during noise measurements was close to 30 dBA.



With the fans working at low speed the noise is minimal but at full speed things change and the output noise increases dramatically. Nevertheless during our entire time with the TS-669 Pro, its fans never operated at full speed (with fan speed control set to auto mode), on the contrary, they were spinning at low RPMs so the noise output was low.

Output Noise Comparison Graphs

The following graphs show the output noise of TS-669 Pro in comparison with other units we have tested in the past.