2. digital
  3. 192927-149900

Power supply for ethernet switch?

Hi, All,

 

LOVING my DENAFRIPS Hermes/Pontus combo! WOW what a difference adding the Hermes made. I could not have been even hopeful for the improvement this made!

 

I just bought the TP Link TL-SG105 Ethernet Switch. I have been contemplating so many different paths here, including the setup from Small Green Computer with the Optical Module, power supply, etc. Very intriguing. But that's a little expensive and a lot of added wires,components, etc. I was also looking at the Silent Angel Bonn N8 switch...Would love to get some opinions on just adding a power supply to my new TP Link switch or would one of the other paths mentioned above be better?

 

If adding a power supply to the TP Link would be a worthwhile improvement, any recommendations, maybe even the 5V power supply from Small Green Computer?

Thanks in advance for your time and advice😊

kingbr

Showing 3 responses by erik_squires

erik_squires
16,677 posts
 

Ethernet jitter has nothing to do with DAC jitter.  Or should not.  The reason is buffers built into the streamers, which may hold several seconds worth of music.  The buffer's output is doled out by the DAC chip itself on demand.

Even a loss of network connectivity lasting several seconds should not impact the music, or video for that matter.

Certainly network latency of even hundreds of milliseconds and jitter in the same scale should do nothing to the audio jitter except in poorly designed and tested systems.

erik_squires
16,677 posts
 

Hey @amtprod ,

Furman units with SMP are series mode surge protectors.  Like ZeroSurge or Brickwall.  What they all have in common is they have a low pass filter at the start of the surge protection circuit, which is another word for "noise filter."

This low pass filter is active around 3kHz and higher, which is a lot lower than EMI/RFI filters, a good thing. 

Furman also adds LiFT, an active linear filtering technology to further reduce noise.  While the strip is designed to reduce noise coming in, it also effectively reduces noise above 3 kHz going out, making it a great candidate for wall warts.

The low pass filter slows down a voltage surge long enough for the rest of the circuitry to have time to respond to it.  Some parallel mode surge strips also incorporate some sort of low pass filtering for similar reasons. 

erik_squires
16,677 posts
 

Personally the fanciest I’d like to get is to use iFi power supplies with the correct V and at least the needed current.

My experience is that giving the switches good clean power is less important than the noise the power adapters can generate back into the AC line itself. For this reason you should keep such devices from being plugged in after your fancy conditioners. Put them on their own strip like a Furman PST-8 which has excellent noise filtering, and surge protection or leave them connected to the wall.

Also, be careful how you route your Ethernet wiring. I use shielded power cords and shielded IC’s in part becasue I have so many Ethernet devices. Try to minimize how and where your Ethernet crosses power cords and interconnects. Avoid bundling them together and definitely don’t put your Ethernet switch on top of your preamp. :D

More to discover