Output Noise
For these measurements, we used a CEM-8852 Sound DB Meter we installed 50 cm away from the NAS. Ambient noise in our lab was below 30 dBA while these noise measurements were taken.
The 92 mm fan won't be very noisy at all since it uses a very relaxed fan profile.
Output Noise Comparison Graphs
The following graphs show the DS216play's output noise and compare it to that of other units we have tested in the past.