One step forward: ER +lpsu

I believe 5.5 is the outer diameter of the plug in mm, and 2.1 or 2.5 two versions of the inner diameter.

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The mystery is still there :face_with_monocle:

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Ok, Went to Mouser and looked at the technical drawing of a 5.5X2.5 plug and it is the full width of the barrel. 2.5 or 2.1 is the inner opening.

Can you explain with less technical words Charles ? Full width of the barrel ? Inner opening ?

@frenchrooster the outer size is 5.5mm (the shaft part) and the internal hole is 2.1mm to allow a 2.1mm pin to fit snugly when the male plug is inserted into the female port on the ER. Much like male and female anatomy actually. The best fit is always snug. The 2.5mm internal hole would lead to a loose fit and intermittent connection issues.

2.1mm inside the plug end. 5.5mm the outside of the plug.

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Those are technical words? I thought pretty straight forward myself, even with english as a second language. Steve has you covered with some different synonyms so hopefully it make more sense now. :thinking:

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Sorry, but didn’t understood well. It happens. Steve explained and I completely understood now, specially the anatomy image.

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@frenchrooster, have you ever used the google translator? just want to know how good it is if you do.

Not always good…but I confess I was this time a bit lazy

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Just received the Belden 75 Ohm master clock cable 4694R purchased on Amazon from Custom Cable Connection. It brings additional clarity vs the “unbranded” I had to use so far: more details, musicality, no question. Let us see if it further improves with run in. Listening to Suzanne Vega’s last record at the Carlyle, her lyrics are becoming much more crisp, and the low frequencies are more clearly and sharply articulated bringing more flow, prat and interest to the music. Quite amazing in fact. So it is worth to look into the weak point of any system, and the more resolving, the bigger the payback!

6 months ago, I didn’t know about the ER (I still do not know exactly what it actually…is), apart from the fact that it greatly improved what I was hearing, then I added an lpsu, and it did improve again, then I added a master clock …and it improved, then the ultracap to the lps…again. And now the masterclock cable upgrade…what an incredible progression based on something (the ER) a device that didn’t even exist…

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I`m still waiting for the delivery of the ER- for my NDX2/XPS DR/ 52/135s/ Kudos Titan T88.
I am using a BJC cat 6a from router to current switch (Ubiquiti switch 8) and same cable to my NDX2 from the switch.
Hoping that the ER is an upgrade over the Ubiquiti.
Should be arriving soon- from what I have read on the Audiophilestyle forum there are so many positive reviews of the ER (and hardly any neg ones) that I have high expectations. Hope I wont be disappointed.
Understand it takes of bit of time to show what it can do.
David

Glad you’re enjoying it.

Have you tried just plugging a Ethernet cable straight from your router into your streamer to check what the difference is between baseline and what you have now?

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Hi JimDog,
Yes this is on my todo list. I asked myself the same question. I will report when I do!

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So how’s the run-in of the ER going, Thomas?

Has the sound changed over recent weeks?

Have you tried another back-to-basics comparison, e.g. ER vs Cisco?

I ask this because I did the same test and also heard some things I preferred about my PoE 2960s over the ER, and other things I preferred about the ER over the 2960s.

But on balance I preferred the 2960s and so returned the ER, and didn’t wait for the run in or try it with the DC3 I had ordered.

I don’t regret that decision because in the end I think the funds are best invested in the main components of my system rather than on a switch at this stage.

(e.g. I might get Roon?)

But I’d be interested to know how/whether the sound of yours has changed in the interim.

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One thought is that for me I didn’t hear much difference bringing in the ER. However when I added the ultracap this changed completely and it really improved. Maybe worth trying if you have a spare lpsu.

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I don’t have a spare lpsu. Otherwise I would have tried that.

But then if the bare ER is not better than the PoE 2960s, why would I invest even more time and money in buying an lpsu for the ER?

In that case I may as well spend that energy trying to improve the psu for my feeder 2960 which is plugged into the mains - as indeed @Peder and many of his colleagues have done.

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I’m not sure what you mean by the psu of your feeder 2960, plugged into the mains, next to your POE 2960?
Is it the point of entry device, where the internet data signal enters your home?

Of course it’s all location and/or situation dependent, but here I’ve changed both switched standard SMPS power adapters (of my switch, and the modem/router-entry point (provided by the telecom-provider)) by linear toroidal power supplies and both had a very noticeable and positive effect on SQ.
(PS. used to have 2x 2960’s, worked well, but replaced them recently by EE8 (not ER)).

Hi Mike

Yes, I replaced the Sagemcom psu of my PlusNet router with a lower noise iFi iPower one.

I have a PoE (Power over Ethernet) 2960 that sends electrical power as well as audio signals down an ethernet cable to my PD (powered device) 2960.

PoE in my view gives a much better effect (of lowering the noise floor) than merely chaining two 2960s in series.

The first of my 2960s is plugged in (currently using hte supplied smps) - the PD one is not plugged in to the mains (except indirectly via the ethernet cable).

There is a very long thread on ‘switches and cables mania’ where this is discussed in detail.

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Thanks Jim, clear explanation!
To be more precise: the past I used a WS-2960G-8TL-L and a WS-3560-8PC-S, only the latter one eventually providing POE. Unless I missed something, I was under the impression I couldn’t use POE power with these two devices, and therefore used for both switches their mains cables. Did I miss something?