Anyone tried fiber into EtherRegen SFP?

In case there's been misunderstanding here, currently I'm doing:

router => RJ45 A-port => RJ45 B-port  =>  Innuos Zenith RJ45

I'm curious about:

router => FMC RJ45  =>  Fiber  =>  ER SFP A-port   => RJ45 B-port  =>  Innuos Zenith RJ45

The Fiber package I have my eye on is from ADOT, which contains an FMC, cable and a pair of SFP adapters:

https://hifiplus.com/articles/adot-mc01-kit-2-fibre-ethernet-conversion-kit/

@wsrrsw You mention Ethernet in and SFP out.  Unless we're using different terms to describe the same thing, I'm wondering about SFP in (A side) and ethernet out (B side) to streamer

@discopants , @sns 

Thanks.  Useful info there.  Regarding the SFP modules, they would be supplied as part of an audiophile fiber kit, so am assuming they're fit for purpose - though this would seem to be a highly subjective area.  As far as I can tell from an email with the ADOT guy, he just tried loads of different modes and modules until it sounded right for him.

True, I have tried previously a very cheap fiber bridge (2 old FMCs from eBay for £11) and it wasn't pleasant.  

However, based on putting better quality ethernet cables in front of the ER I suspect a quality fiber hop may allow the ER to sing a little better.

@sns I have looked at AfterDark, but for such an audition the overhead of import taxes and possible return are discouraging.  My ADOT kit should arrive in a day or two.

@ozzy The Zenith is Ethernet input only

Well, I now have a fibre kit feeding my EtherRegen, and even in the few hours I've had it up and running I can clearly state that the level of detail, texture and musicality have gone up a notch, without impacting the overall warm tone which I have grown to cherish.

After previously adding such things as top-notch ethernet and USB cabling (SOTM and FTA), Innuos Phoenix USB and the EtherRegen, it still amazes me how much more quality I can squeeze out of the DAC's input stream.  Those out there who stick to the "1s and 0s" ideology are just wrong.

I consider the ER the best upgrade I've made to my system.  And despite the fact it's galvanic and a moat (etc etc) I'm still struck that the quality of its input matters greatly.  I'd already seen improvements after previously swapping the input Supra ethernet cable for a Wireworld platinum.  Swapping the Wireworld for a decent fiber bridge just added more.  Saying that however, the FMC is now fed by the same Wireworld. Go figure.

For completeness, I should add that I did try feeding ethernet into the ER's B-port and then feeding fiber from the ER's SFP to the FMC, and then to the streamer by the FMC's ethernet.  Basically:  router => ER => FMC => streamer.  But this didn't work.  The music was brittle and hard; the same reason I'd rejected a pure fiber ethernet stage months ago.

So, my ethernet feed is now:

Netgear Orbi satellite => Wireworld Starlight ethernet => ADOT FMC => Fiber => EtherRegen SFP A-port => EtherRegen B-port => SOtm DCBL-CAT7u => Innuos Zenith Mk3

Hopefully that is now me done.  I have a credit card bill to clear.  And I'll be avoiding reviews of the 2nd gen EtherRegen....

Thanks to all who contributed to this thread.

Thanks @antigrunge2 

First suggestion already done. Russ Andrews router connected to metre long copper rod stuck in ground

Second, thanks for the advice

Hi @antigrunge2 

Going back to your clock for EtherRegen advice, can I ask what you're using?

I don't want to spend silly money, and certainly not more than I spent on the ER.  I've noticed a Chinese clock, BG7TBL, seems to be a popular choice.  Do you know if square or sine-wave output is better?

Thanks