Thanks for the idea (3.5mm patch bay)

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Thanks for the idea (3.5mm patch bay)

Post by Digital Larry » Sun Jan 20, 2019 11:11 am

I recently rearranged things in my studio, so now my BeatStep Pro is to the right of the Euro rack instead of right in front of it. I'm also setting up a Keystep 32 and I wanted to have some sort of patch bay in between so I don't have wires dangling down that I can't remember where they came from unless I look at the rear panels of the controllers.

I spent an hour yesterday on ModularGrid looking at various passive and buffered mults, but I really only need (mostly) a 1:1 connection. Then I got on here and searched for "Patch Bay" and found a recommendation to use an audio patch bay with 3.5mm to 1/4" adapters.

As it turns out I have a Behringer "Eurorack" patch bay already installed which will do the trick quite nicely. I don't actually patch much audio through it. I just need to order 20 3.5mm to 1/4" adapters, from Amazon it works out to about $60 which is about the same as two 2 or 3 hp 3x3 mults, but doesn't take up any space in my rack!

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Re: Thanks for the idea (3.5mm patch bay)

Post by starthief » Sun Jan 20, 2019 12:03 pm

Digital Larry wrote:I spent an hour yesterday on ModularGrid looking at various passive and buffered mults, but I really only need (mostly) a 1:1 connection. Then I got on here and searched for "Patch Bay" and found a recommendation to use an audio patch bay with 3.5mm to 1/4" adapters.
There's a sad general lack of patchbays, trunk lines, etc. for this sort of thing in Eurorack.

ADDAC911 is a 1U patchbay that has 1/4" and 3.5mm jacks for each channel, but it's pricey compared to standard 1U patchbays.

Other options:

-- The 2HP Bastl Multiple is dirt cheap, comes with all jacks wired together on the back, and you cut the connection wherever you like. I currently have one set up for four 1:1 connections to the back of my audio interface, though there's one jack left over.

-- A pair of ADDAC213B -- eight 1:1 connections in 6HP total, and you don't have to place the two modules side by side.

-- Trouby Modular Jack 8 is 8 3.5mm to 1/4" converters in 12HP.

-- Pulp Logic Patch Multiple or Liivatera Switched Patch. Instead of dividing the multiple by cutting wires, you divide it by patching cables in the left column. I used a pair of these for a while to bridge between cases.

-- Boredbrain Patchulator, but I think it's a bit overpriced and wonder why there's not a more straightforward, plain desktop patchbay like this.

-- DIY.

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Post by Digital Larry » Sun Jan 20, 2019 12:25 pm

Thanks for the comment. I decided I really need 10 patch points with my current setup.

4 for the drum triggers coming from my BSP. It supports 8 I think but I just use 4 going to 2 Erica Pico Drum modules.

2 each for the 2 melodic sequencers gate/pitch in the BSP (I don't use velocity at the moment) so that's 4 more.

2 for the gate/pitch on the Keystation.

I think the Behringer will be great as I can bring the signals in from behind, keeping that bunch of cables out of the way. And switching off normalling, I can have 24 channels just on the right hand side, leaving a few channels open for any audio patch routing I want to do (which is not much). Also, the connectors will be spread out a bit rather than all jammed into 6 or 8 hp. I have a few HP left over for "something else" but haven't been exploring the modular much recently, rather playing a lot of guitar.

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Re: Thanks for the idea (3.5mm patch bay)

Post by Rex Coil 7 » Sun Jan 20, 2019 2:11 pm

starthief wrote: ... ADDAC911 is a 1U patchbay that has 1/4" and 3.5mm jacks for each channel, but it's pricey compared to standard 1U patchbays.
You ain't kiddin' !! At today's exchange rate it's running $262.00 USD plus $40.00 USD shipping!

At $302.00 USD that thing better do flips and cartwheels!

:moneyburn:
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Post by Rex Coil 7 » Sun Jan 20, 2019 2:19 pm

Why not just make your own? Or if you're not hip on soldering/drilling holes and such there are quite a few people within our membership willing to be paid to make such a thing.

You could make a desktop format conversion patch box out of a $10.00 stomp box enclosure and ten 1/4" jacks plus ten 3.5mm jacks.

There's other methods and ideas that would be easily produced as well ...

Image

Image

Image
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Post by DSC » Sun Jan 20, 2019 3:30 pm

Seems necessity always becomes the mother of invention.
Did the same for the MPCX!

Image

Image

Image

Image
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Re:

Post by xcc » Tue Feb 25, 2020 2:01 pm

Rex Coil 7 wrote:
Sun Jan 20, 2019 2:19 pm
Why not just make your own? Or if you're not hip on soldering/drilling holes and such there are quite a few people within our membership willing to be paid to make such a thing.

You could make a desktop format conversion patch box out of a $10.00 stomp box enclosure and ten 1/4" jacks plus ten 3.5mm jacks.

There's other methods and ideas that would be easily produced as well ...

Image

Image

Image
I’m planning on building something along these lines soon, for various tasks. On that top box, what are the switches doing?

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Re:

Post by drowld » Mon Oct 12, 2020 5:56 am

Rex Coil 7 wrote:
Sun Jan 20, 2019 2:19 pm
Image
Oh damn i need this one. Whats the build like ?
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Re: Re:

Post by Rex Coil 7 » Mon Oct 12, 2020 8:57 am

drowld wrote:
Mon Oct 12, 2020 5:56 am
Rex Coil 7 wrote:
Sun Jan 20, 2019 2:19 pm
Image
Oh damn i need this one. Whats the build like ?
The "build"? Hmm ... layout holes on a blank panel, drill, install components, wire it up. I'm not exactly sure what you mean. :hmm:
xcc wrote:
Tue Feb 25, 2020 2:01 pm
Rex Coil 7 wrote:
Sun Jan 20, 2019 2:19 pm
Why not just make your own? Or if you're not hip on soldering/drilling holes and such there are quite a few people within our membership willing to be paid to make such a thing.

You could make a desktop format conversion patch box out of a $10.00 stomp box enclosure and ten 1/4" jacks plus ten 3.5mm jacks.

There's other methods and ideas that would be easily produced as well ...

Image
I’m planning on building something along these lines soon, for various tasks. On that top box, what are the switches doing?
They do this ....

9827_4x6_modbox1__rcm__block_diagram__1_1.jpg
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Re: Thanks for the idea (3.5mm patch bay)

Post by Peng33 » Mon Oct 12, 2020 10:13 am

I am using the Patchulator and enjoy it. Nice thing is if you get the newer version, it is TRS stereo.

I am redoing my setup since I massively expanded my modular gear and bought a few more pieces of "regular" gear as well, so the Patchulator is gonna be nice to route eurorack stuff out to outboard effects/mixers/recorder.

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Re:

Post by R.U.Nuts » Mon Oct 12, 2020 11:35 am

DSC wrote:
Sun Jan 20, 2019 3:30 pm
Seems necessity always becomes the mother of invention.
Did the same for the MPCX!

Image

Image

Image



Image
_20200905_210833.JPG
Did that, too for the MPC one. I used stereo jack sockets for the inputs because the MPC one has four TRS jack sockets with two CV outs each.
Yes. Rolling your own patchbay is cheap and easy - and rewarding

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Re: Re:

Post by drowld » Tue Oct 13, 2020 4:51 pm

Rex Coil 7 wrote:
Mon Oct 12, 2020 8:57 am
The "build"? Hmm ... layout holes on a blank panel, drill, install components, wire it up. I'm not exactly sure what you mean. :hmm:
Oh i thought there was a board but it's not buffered ?
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Re: Re:

Post by Rex Coil 7 » Tue Oct 13, 2020 7:22 pm

drowld wrote:
Tue Oct 13, 2020 4:51 pm
Rex Coil 7 wrote:
Mon Oct 12, 2020 8:57 am
The "build"? Hmm ... layout holes on a blank panel, drill, install components, wire it up. I'm not exactly sure what you mean. :hmm:
Oh i thought there was a board but it's not buffered ?
Nope. 100% DIY ... it's just a combination of an input panel for trunked CV/Gate controller lines that can accept 3.5mm or 1/4" plugs. Here's some old pics and an old diagram I did in response to someone's question .....
Interface Mult rear view - 1.jpg
Interface Mult rear view - 2.jpg
Interface Mult - function map - 1.jpg
Interface Mult - CV signal to Controller Panel paths - 1.jpg


Here is an alternative, a terminal strip mounted to the backside of the panel on standoffs that raise the terminal strip above the jacks to facilitate easier wiring from jack to t-strip. Makes it into a sortof universal ~normaling panel~ or whatever your imagination drives you to do with it.

I have a picture of that someplace ... if I locate it I'll post it here.
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Re: Thanks for the idea (3.5mm patch bay)

Post by col » Tue Oct 13, 2020 7:45 pm

Also, there is the Plum Audio – Rack Plumber Beat Step Pro breakout solution. It looks a bit fiddly to build though.

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Re: Thanks for the idea (3.5mm patch bay)

Post by muleskinner » Wed Oct 14, 2020 2:11 am

Having gone down the DIY myself and built some converter modules similar (but much more shoddily made) to the ones pictured above I have come to the conclusion that this solution is not ideal - too much cable mess.

So I'm in the (slow) process of another solution where the 1/4" jacks will be permanently patched inside the case, leaving the front panel for euro connectors only. Much tidier. Instead of building the panels myself (and making a mess of it) this time I'm probably going to repurpose a couple of MA 4x4x4 kits.
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Re: Thanks for the idea (3.5mm patch bay)

Post by drowld » Wed Oct 14, 2020 3:19 am

muleskinner wrote:
Wed Oct 14, 2020 2:11 am
Having gone down the DIY myself and built some converter modules similar (but much more shoddily made) to the ones pictured above I have come to the conclusion that this solution is not ideal - too much cable mess.

So I'm in the (slow) process of another solution where the 1/4" jacks will be permanently patched inside the case, leaving the front panel for euro connectors only. Much tidier. Instead of building the panels myself (and making a mess of it) this time I'm probably going to repurpose a couple of MA 4x4x4 kits.
Nice. I think using the MA 4x4x4 is a good idea to avoid too much efforts
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Re: Thanks for the idea (3.5mm patch bay)

Post by kay_k » Wed Oct 14, 2020 1:09 pm

Hey, speaking off ..
I made myself a 4HP module for bringing in the inserts of my desk via a "TASCAM to 8x TRS 6.3mm" cable . It basically has 8 "send" jacks normaled to 8 "return" jacks. The D-SUB 25 will be mounted to the backside of my rack (via ribbon cable), could be also going out to the front

This way I can quickly patch in filters, compressors etc to the inserts.

I will order 5 PCBs of that so hit me up if you need one. :D

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Re: Thanks for the idea (3.5mm patch bay)

Post by circuitburst » Wed Oct 14, 2020 1:28 pm

Another option is the Bulkhead module by Tymkrs:
https://www.tindie.com/products/tymkrs/ ... khead-kit/

I use one to route eight audio signals to my 8-track recorder. Really great for cable management!
2019-05-23T02_38_10_525Z-top.png
2019-05-23T02_38_10_525Z-inside.png
2019-05-23T02_38_10_525Z-bottom.png
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Re: Thanks for the idea (3.5mm patch bay)

Post by drowld » Wed Oct 14, 2020 3:59 pm

circuitburst wrote:
Wed Oct 14, 2020 1:28 pm
Another option is the Bulkhead module by Tymkrs:
https://www.tindie.com/products/tymkrs/ ... khead-kit/

I use one to route eight audio signals to my 8-track recorder. Really great for cable management!

2019-05-23T02_38_10_525Z-top.png

2019-05-23T02_38_10_525Z-inside.png

2019-05-23T02_38_10_525Z-bottom.png
Oh it's a good one for bigger case. I may get 2 on opposite sides of my case
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Re: Thanks for the idea (3.5mm patch bay)

Post by muleskinner » Wed Oct 14, 2020 4:30 pm

circuitburst wrote:
Wed Oct 14, 2020 1:28 pm
Another option is the Bulkhead module by Tymkrs:
That's exactly what I want but with 1/4" jacks on the back!
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Re: Thanks for the idea (3.5mm patch bay)

Post by xcc » Wed Oct 14, 2020 9:34 pm

muleskinner wrote:
Wed Oct 14, 2020 4:30 pm
circuitburst wrote:
Wed Oct 14, 2020 1:28 pm
Another option is the Bulkhead module by Tymkrs:
That's exactly what I want but with 1/4" jacks on the back!
For reals, that would be great.

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Re: Thanks for the idea (3.5mm patch bay)

Post by circuitburst » Thu Dec 24, 2020 10:09 am

Mazzatron just released this... 8HP, 1/8" on front (8 jacks) and 1/4" on back (8 jacks):
https://www.mazzatron.com/product-page/ ... ack-module
"make the events occur that you want to occur" - the black dog

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Re: Thanks for the idea (3.5mm patch bay)

Post by drowld » Mon Feb 22, 2021 11:49 am

circuitburst wrote:
Thu Dec 24, 2020 10:09 am
Mazzatron just released this... 8HP, 1/8" on front (8 jacks) and 1/4" on back (8 jacks):
https://www.mazzatron.com/product-page/ ... ack-module
Nice I’ll get one. Easier than to make my own for sure.
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Re: Thanks for the idea (3.5mm patch bay)

Post by kay_k » Tue Feb 23, 2021 8:26 am

circuitburst wrote:
Thu Dec 24, 2020 10:09 am
Mazzatron just released this... 8HP, 1/8" on front (8 jacks) and 1/4" on back (8 jacks):
https://www.mazzatron.com/product-page/ ... ack-module
sadly passive .. I'd get an active version

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Re: Thanks for the idea (3.5mm patch bay)

Post by xcc » Tue Feb 23, 2021 8:40 am

kay_k wrote:
Tue Feb 23, 2021 8:26 am
circuitburst wrote:
Thu Dec 24, 2020 10:09 am
Mazzatron just released this... 8HP, 1/8" on front (8 jacks) and 1/4" on back (8 jacks):
https://www.mazzatron.com/product-page/ ... ack-module
sadly passive .. I'd get an active version
Why would this need to be active?

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