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Thank you, Doepfer! (Ethernet mults)
MUFF WIGGLER Forum Index -> Eurorack Modules Goto page 1, 2  Next [all]
Author Thank you, Doepfer! (Ethernet mults)
hippo1
I whined and whinged about earlier about 'having too much stuff, spread about in separate cases'; yes, easily solved with patchbays... but then there are all the weirdo patchcords needed (half a million 1/4-to-3.5mm cords). I just picked up a pair (and have another pair on the way) of Doepfer's new Ethernet-compatible mults (A-180-9, I think). Great idea, using existing tech to 'better mousetrap' the patchbay!
I'm having schnitzel tonight, to celebrate Herr Doepfer! Danke!

(Hope this doesn't sound like a sales pitch; I've got no irons in those fires!)

Keep on wiggling!
andybizarre
Yeah, those a great, I bought mine the moment they came out. Kept me from continuing a rather disastrous DIY project of mine with the same goal. However, if you wish to use longer cables than the ones included, make sure you are buying at least the same cable category and shielding. The longer the better. I tried some cheap 3m Cat5e/FTP cables and got a *lots* of crosstalk.
Radical Ans
Evaton Technologies has a similar solution using HDMI cables to connect up to 18 signals over a single HDMI cable: http://www.evatontechnologies.com/link
starthief
I had a semi-DIY solution that was a bit awkward, and they saved me from that. I'm doing fine with 8 foot Cat6 cables (mine came with ridiculously short Cat5).

I find if I plug a sound source into, say, "F" on one module but connect "E" on the other to my mixer, I can still hear F faintly -- so I started worrying about crosstalk. But if I connect anything correctly on both ends, it's grounded properly (or, I guess, shares a common 0V reference) and all is well.
ersatzplanet
starthief wrote:
I had a semi-DIY solution that was a bit awkward, and they saved me from that. I'm doing fine with 8 foot Cat6 cables (mine came with ridiculously short Cat5).


I was going to DIY myself a similar setup. I was going to normalize all the jacks to ground so if I wasn't using a line, it would add a ground path in the cable on top of the shielding.
starthief
ersatzplanet wrote:
starthief wrote:
I had a semi-DIY solution that was a bit awkward, and they saved me from that. I'm doing fine with 8 foot Cat6 cables (mine came with ridiculously short Cat5).


I was going to DIY myself a similar setup. I was going to normalize all the jacks to ground so if I wasn't using a line, it would add a ground path in the cable on top of the shielding.


That seems like the way to go. Even though the Doepfer is passive I was kind of expecting an optional-but-recommended ground terminal or at least a standard ribbon cable or something
Foghorn
These things are pretty good, aren't they.
I think the 0.5 meter long cables that come with them are meant for cases that are mounted on top of one another.
I made some 5 foot long (and 8 ft.) cables from Belden 8 conductor and used a crimper to install the ends.
It works fine.
However i do have ground wires between cases.
I run 10 gauge wire between these 0 volt bond points.
Ground Terminal picture

I had to laugh at the mention of "a rather disastrous DIY project " as I was going down that same rabbit hole.
I was going to use another sort of multi-pin connector and was pleasantly surprised by the use of the 10 pin modular connector in these.
I guess the name fits the use.

Foghorn
andybizarre
I just found out that the new Intellijel 1U Octalinks are compatible to the Doepfers! hyper
Mndscrpt
Hi there! Im currently going out of my system with the nw2s i/o unbalanced module. the multicore with sub25 plug is super sturdy but also bulky and heavy.
As im using the unbalanced version anyway i was wondering how practical it might be to use either octalink or the doepfer as main output module. My behringer xr 18 should handle the input gain without the -6db attenuation.

My idea was to build a little breakoutbox which is placed near the mixer and converts the cat to 8x 1/4". My only concern is that ethernet cables can break easily compared to a tascam audio multicore and also the diameter of the wires itself are way smaller than regular audiocables...

Hdmi cables might be more flexibel.

Edit: i just discovered Neutrik Ethercon



hmmm..... hmmm.....
EPTC
Both Evaton's Link and Doepfer's A-180-9 both look perfect!

Wondering if there's any format preference for HDMI or Ethernet on signal quality. Presumably, you'd use these for CV signals but curious about sending audio through the chain. It'd be 1:1 in signal strength, or possible attenuation, akin to a passive mixer?

Either way, I'm liking these a lot. Doepfer's seems to be pre-ordering at around $130 for a pair. Looks like it could clean up a lot of 5 foot and 10 foot cables I use. Thanks for posting about this, hippo1.
foliephonics
Apparently Plum Audio also has DIY modules :
- https://www.modulargrid.net/e/plum-audio-rack-plumber (RJ45)
- https://www.modulargrid.net/e/plum-audio-rack-plumber-hd (HDMI)

I don't know if there's a format preference apart from the number of wires (8 for RJ45, 18 for HDMI).

The Doepfer one seems interesting in that the 2 cables can be sent to different cases.
Foghorn
I have only ever considered using these multi pin telephone (a-180) type of things with CVs.
I wouldn't think that they are good with final audio.
The wires are too low in cross section and they are not always shielded from each other.

Though I suppose that you can consider VCO output a CV, I think after filtering and VCA, well that is final audio.

Foghorn
Mndscrpt
Foghorn wrote:

I wouldn't think that they are good with final audio.
The wires are too low in cross section and they are not always shielded from each other.


Yea, after reading the specs of my dedicated output module again i realized there is much more going on and they use quality parts only. Maybe i'll try ethercon one day with a minirack but for now the nw2s is pretty much the best i can get. The wish to change something all the time is really dangerous.. confused
strangegravity
HDMI cable is a terrible design (ultra thin wire and poorly designed non-locking connectors). I'd go with RJ45, easy to make and inexpensive. Clever idea.
david_r
wow.. had no idea this existed, I have a bunch of little cases so this looks perfect!
ersatzplanet
The best use I have for this is from a controller skiff to a main cabinet. I recently did a live show and the amount of patching I had to do before the show, just between my controller skiff and my two cabinets, would have been cut to nothing with a couple of these modules.

I started to lay out a Front Panel Express panel using shrouded 16-pin headers and ribbon cable. I have a few spare TipTop power bus cables to sacrifice for the cause. If every other line was ground it should cut crosstalk some. I'm getting last though and may just buy one of the ones shown in this thread.
djthopa
Hi!

I i have a few Elby trunks that have been performing well for many years.

Tried dying my own but massively failed, having signal problems over 5 meter distances.

Eyeing the plum audio as its DIY and the dopefer ones.

Is anyone using this for audio?

Cheers
Summa
http://addacsystem.com/product/addac200-series/addac213a
djthopa
Thanks for the reply Summa.

Those are similar to the Elby i have.

Thanks!

Summa wrote:
http://addacsystem.com/product/addac200-series/addac213a
Summa
djthopa wrote:
Thanks for the reply Summa.

Those are similar to the Elby i have.

Thanks!

Summa wrote:
http://addacsystem.com/product/addac200-series/addac213a


They're also available as kits from thonk

https://www.thonk.co.uk/shop/addac213-eurorack-bridge-kits/
djthopa
Thanks Summa!

Unfortunately they are out of stock @ Thonk.

I ordered some Plum Audio Rj45 network ones, lets see how they work out.

Thanks for your feedback thumbs up
OB1
djthopa wrote:

I ordered some Plum Audio Rj45 network ones, lets see how they work out.


I'm using the Rack Plumber system to connect my cases. Works a treat ;-)

Recommend using shielded Cat6 cable for best results.
Parnelli
I have a set of the Intellijel 1U links, they work great, and I love the idea that they work with Doepfer links as well, which I didn't know existed until I purchased these!
djthopa
OB1 wrote:
djthopa wrote:

I ordered some Plum Audio Rj45 network ones, lets see how they work out.


I'm using the Rack Plumber system to connect my cases. Works a treat ;-)

Recommend using shielded Cat6 cable for best results.


Thansk Ob1!

I went for cat6 shielded cables, not cheap!

There is a jumper on the back of the pcb to setuo as shielded and not shielded connections right?

Cheers
Gandalf
Foghorn wrote:
I have only ever considered using these multi pin telephone (a-180) type of things with CVs.
I wouldn't think that they are good with final audio.
The wires are too low in cross section and they are not always shielded from each other.

Though I suppose that you can consider VCO output a CV, I think after filtering and VCA, well that is final audio.

Foghorn

LAN cables are usually twisted pairs so you get a 'good' wrap with signals, great if you are mixing audio and cv in pairs!!!!!
Remember, the ONLY screen (0V) between the two cases is the shield of the LAN cable and MOST common LAN cables DON'T have that. READ the Doepfer page and make sure you use the proper network cable. I believe that is the reason that ELBY are supposed to be going with the DB9 (RS232 cable) approach as it guarantees a 0V connection and an optional shield
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