Basic switch....should I upgrade?

@vinylvalet 

The first switch was a Cisco 2960. Had mods done by audiophool.nl

Last month bought a Cisco SG110D switch. I needed one with a small footprint. Have sent it to Fidelity Audio in The UK. They have put one of their C4Mk2 clocks in it, and changed a couple of capacitors.

@jerrybj Thank you. Interesting.

@jerrybj

You have done some interesting stuff. But I haven’t heard you say anything about the differences you have hear in your system as a result of your changes. What have you observed? Reduction in noise floor? Dynamics? Small difference, big?

The amount of things you guys are trying is astonishing. But none of it works, and a lot of it is counter to how Ethernet works. For instance, for audio listening (not two way like voip), latency is irrelevant. The change in latency matters however, and if packets arrive out of order. Another things, the only possible outcome of taping batteries to an Ethernet cable is that you introduce CRC Frame errors, which the will force the switch to discard the frame, and higher level protocols to trigger a retransmission. 
 

pro audio applications use enterprise equipment, not made up cures but introducing voodoo into the chain, and adding things. 
 

maybe it is just me, but in general for my audio setup, I like to Keep It Simple, the fewer components, the better, since adding will only add to the signal, which means you have modified the recording in transit from source to speaker, and that is not audiophile grade. 

Now you have stated your opinion (many times), there is no need for you to post any more. Thank you for your views.