Do upgraded LAN cables/purifiers/switch box make a difference. What is recommended, if so?

@roadcykler  In your system that is...

No, they make no objective difference in the sound from a stereo.

@devinplombier 

While analogue and digital issues are distinct in this case they are comingled: EMI/RMI noise on cables affects the D/A conversin since your bit perfect bits are arriving with messed up syncronicity and bent shape which both lead to increased jitter: in other words: analogue is messing up digital. hence your horsepower analogy is fallacious

I didn't realize you were in Dubai. Surely that complicates things.

Of the DRC systems I've used (many), I think ARC is one of the better ones.

When I tried a DAC3B in an all-Benchmark system (DAC3B - LA4 - AHB2s), the result was excellent. That might be a reasonable path to consider.

Enjoy!

@earthbound Thank you for your comments. I am looking at a sort of hybrid solution at the moment. Benchmark DAC 3B (waiting for a decent/recent one identified through HiFiShark.com) plus upgraded Ethernet Cables (many mentioned in the thread) and a Stack SmoothLan on a 60 day trial. From there will decide on future upgrades - if any

@sns You've opened a new rabbit warren for me  the master clocks - new area of research. Your comments are appreciated. 

@audphile1 Appreciated and a IFi Silencer is on its way (second hand and great price). Looking into the Ethernet cable recommendations.

@foggyus91 Appreceiate the comments and products mentioned. A lot of research to keep me busy for a while

@sns will look into the Sonore and Finisar products. They are new to me

@mike_in_nc Thank you. Yes, we are starved of decent audio equipment in the UAE, outside of the very expensive stuff (MBL, D'agostino, Axxis, etc) and also very curated offerings to a market where cost is no issue. They only item of my system I could buy in the UAE was the Martin Logans - everything else was via Agon/USAM/eBay and from diverse places like Canada, US, Poland, Estonia and New Zealand. Some of these sellers became friends and we share lots of details - even invites to join us on safari vacations in South Africa in July / August any year 

@antigrunge2 thank you for your initial input. I do hope that we can have civil discourse and disagreements. Opinions can differ - let's just keep accept it without attacking another. BTW I learned a new word 

@mike_in_nc the all Benchmark stack is what I am looking at (DAC 3B, HPA4 and 2X AHB2's). I just ordered JM Editions XTC2 Headphones, tuned individually to provide with similar sound charateristics of the ML 9's and the BM stack (never had headphones before). Can't wait to receive them!