Routers and Ethernet switch

[yamamoto2002]

My network switch constantly emits annoying coil whine noise from switching power supply.

It is designed to use in on 19 inch server racks, not in listening rooms.

 

Perhaps audiophile network switch does not emit such audible noise ?

 

Here is a recording of my switch singing 😀

Netgear_working3_EEE65a.flac

 

Here is a noise spectrum.

 

Those noise is from the worst case switch configuration (Energy efficient mode enabled and only 3 port is used). With the best case (?) configuration, the switch emits constant 17kHz tone.

 

[yamamoto2002]

14 hours ago, VaG said:

Hello, I recived 3com Switch 4400 SE. Do you think it is worth try for better audio? Will improve sound quality over internet?

 

 

According to 3com 4400 getting started manual page 89,

This is FCC Class A commercial/industrial equipment. It is not designed to be used in home wherein RF-sensitive devices (audio equipment!) may be malfunctioned by its radio frequency noise emissions