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Chapter 4  Specifications
Acoustic Noise Emissions
DLT-S4 Product Manual
42
Acoustic Noise Emissions
4
This section lists acoustic noise emission levels, both as noise power and 
sound pressure. The table provides the preliminary declared values per 
ISO 9296 and ISO 7779/EN27779. The values shown in 
 are the 
maximum values based on 3 sigma limits from a distribution of tape 
drives.
Table 28   Acoustic Noise 
Emissions
 
Mode
Internal
Tabletop
Noise Power Emission Level (LNPEc)
Idle
Not applicable
5.4 Bel
Streaming
5.9 Bel
5.9 Bel
Sound Pressure Level (LPAc)
a
a. Sound pressure level measured at front of tape drive. 
Idle
Not applicable
42 dB
Streaming
47 dB
53 dB