Output Noise
For these measurements, we used a high-quality CEM-8852 Sound DB Meter that has been installed 50 cm away from the NAS. The ambient noise in our lab during noise measurements was below 30 dBA.
This is a very silent product, ideal for users that hate noisy equipment.
Output Noise Comparison Graphs
The following graphs show the output noise of TS-421 in comparison to other units we have tested in the past.