For you or some, but it’s not a general assumption, neither a fact, DG.
When using the word rationale I mean the reason behind the choice no matter the choice. My rationale is what I explained. Someone else’s rationale might be something different. Maybe the word can’t be used like that but that was my intent.
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I think you mean rationale here.
Yes that’s right. Thank you
I am not in a position to correct your English, as I don’t practise it better than you 
My understanding of rational is factual, objective. But you responded it’s more your experience than a fact.
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It was “rationale” with an e meaning “the reason behind” or “a set of reasons or a logical basis for a course of action or belief.”
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So it’s me who misunderstood. In French, rationnel means objective and factual.
I also used the wrong word with rational without an e which doesn’t mean what I wanted to say.
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Rationnel = rational (adjective).
Rationale is a noun.
For kicks, I named my wireless network ‘FBI Surveillance Van 7’ to play with my neighbors…
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Anyone interested in putting something together themselves for relatively little money that provides a result way above commercial offerings should take a look at Eric’s Throttle Cable. Translate is fine if you don’t read Deutsch.
My only comment would be to build the cable using the recommended components.
For the isolator, Eric’s DELOCK 62619 or Iso Plus Ethernet Isolator work.
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A very interesting site - thanks for posting.
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WiFi anyone? 
Well indeed, and there are some on the forum that use WiFi instead of Ethernet for perceived better performance and simplicity. I personally wouldn’t use wifi on the first gen Naim products.
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I use it now to simplify things. It also means I can place my system where I want without having to re-route expensive ethernet cables around the house. My wife is less than happy at the holes I made in the lounge floor to do this last time…oops.
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Hi Idak – A couple of months back I re-read your post, and it got me thinking about trying out the fibre connection again. I’d noticed in another pic you’d posted that you had grey fibre between the ADOT converter and KDSM and realised you had the single mode version – something i’d not tried.
I’d experimented with various combinations and whilst I thought fibre had potential, I found the result to be good, if lacking engagement compared to copper via my PhoenixNET. I’d always ended up going back to copper with the PhoenixNET as the final switch.
I still had an ADOT MC01 in my spare’s cupboard, so I borrowed a single mode kit (modules and fibre) and set it up with an iFi iPower 2 PSU.
Running with that setup for a few days I was quite surprised (and rather pleased) to find this combination to better my previous favoured setup. Whether it’s the different modules or the combination of modules and fibre, I don’t know, but it sounds very good. I left this set up it in place for a couple of weeks, just to be sure I was making the right decision and then bought the single mode kit. It’s been in place ever since.
My PhoenixNET has found a new home, so a bit more cash has gone back into the Hi-Fi fund…
I hope you’re still enjoying your KDSM.
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Good to hear James, I also use single mode fibre with my Lumin P1. The software engineer stresses that you must use single mode for best sound. You mentioned a gray cable, hmmm, mine is yellow.
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Yes, yellow is the industry standard colour for Single mode. ADOT have an optional grey coloured version so it doesn’t stand out behind the rack.
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@james-n I so glad it has worked out so well for you with the single mode fibre optic cable. The grey single mode is meant to give a better sound than the orange Dual mode fibre optic cable due to it being narrower with light reflectance in the cable being reduced.
Another improvement hack is to ensure the switches on the ADOT box are in the right position. I took my Linn KDSM still connected to the ADOT back to the dealer because I stuffed up the recent software update. One of the staff told me the two left switches should be down and the two on the right should be up. They were in a different configuration when it was initially installed by a different staff member.
It is hard to believe that the Linn KDSM can be improved upon but the fibre optic really does sharpen things up quite a bit with no sacrifice in musicality.
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That advice sounds like it is very specific to a particular setup and even perhaps equipment type.
Multi mode fibre is designed for LAN use, which is what we are doing here. Single mode is generally designed for long distance upto severeal km if not longer .. because it’s designed to use a narrow beam with less dispersal required for significant lengths, however single mode you need to be careful on very short lengths not to cause overload of the receiver detector (not good).
So for home use multi mode would normally be recommended. Now yes a set of carefully selected and matched single mode transceivers may work well over a short distance, but i suggest it is far from general advice.
An electronics/network specialist would (should) have explained that. I suspect a software developer may not be aware of some of these physical aspects.
I think you’ll also find single mode is more susctible to encoding jitter through microphony, where as multi mode will better average out.. though I have not performed comparisons of fibre mode microphony other than used the microphony feature in applications.
I think in the audiophile world because single mode generally costs more, it must somehow be better.. which is not necessarily the case, and ‘SQ’ is going to vary on many reasons…. I suspect most are nothing to do with the actual fibre mode.
If you are having issues with connectivity SQ, try WiFi, you may find certain issues are done away with.. (albeit one or two considerations may be added). These transmission type are effectively equivalent for data and SQ, they just expose difference compromises in the connectivity chain, which then become mostly system dependent.