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Synology DS920+ 4-bay NAS Review - Good but Pricey
Performance Rating & Performance per Dollar »Output Noise
I use a Class 1 Bruel & Kjaer 2250-L G4 sound analyzer equipped with a Type 4955a microphone that features a dBA-weighted dynamic range of below 6 dBA and up to 110 dBA. All tests are conducted inside a hemi-anechoic chamber at 25–28 °C ambient, and the test subject is placed a meter away from the sound analyzer.
The unit's fan is not noisy, especially in quiet mode, which can be set in DSM OS.
Output Noise Comparison Graphs
The following graphs show the output noise of the DS920+ and compares it to other units I have tested.
Nov 28th, 2024 00:31 EST
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