one more time…
@ digdugDIY - Etsy
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back once again
this time a little upgrade
version 3 sports a thru hole TRRS jack
instead of the old surface mount one
thru hole components are sturdier, stronger and more durable
than the surface mount ones.
@ digdugDIY - Etsy
2 Likes
Hey I got this thing some years ago and it’s rocking. I’m using it to send jam to friends as IM on Signal etc. Works fantastic direct from OP-Z, Digitone, everything.
I might be getting into Eurorack and would like to ask @docshermsticks or whoever might know if the TRRS splitter is DC coupled maybe? I’ve understood output from modular should be DC coupled so maybe maybe this could serve that purpose besides bringing levels down? 
Thanks
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far from an expert on dc vs ac coupling
the TRRS splitter has a capacitor at the input
and as i think i understand would make it ac-coupled not dc-coupled
i believe that dc-coupling has more to do with CV signals than audio signals
audio signals should pass thru untouched just fine in either ac or dc coupled scenarios
so i dont believe u would have any issues running the audio signal of your modular into it
almost positive i’ve seen or ppl have told me that they were doing it (to great fun)
no one has said to me that they’ve had issues trying to do this either
this should be more than safe
like u said, just watch your levels and be mindful of whatever u are running the modular into
the splitter itself can handle the voltage but your other devices down the chain may or may not
so as i believe i understand things
u may run into strange behaviour if u are trying to send CV thru an ac-coupled input
like LFOs, step sequencer voltages, etc etc. things that change or move slowly or not at all
if u send CV thru it and it is ac coupled it merely just removes the DC offset
i dont believe that ac coupled vs dc coupled would damage anything before or after or the splitter itself
in fact u may even stumble upon something cool or different doing this
heres a pretty decent read on it if u are looking to ruminate on it some more
https://noiseengineering.us/blogs/loquelic-literitas-the-blog/ac-vs-dc-coupling-what-is-it
if u want to make it dc-coupled i believe that u can just jump the capacitor on the splitter
but this is not something that i have tested at all so u would be at your own risk kinda thing
the input capacitor is there to protect the circuit and whatever is down stream from any potentially damaging DC (and is super common in electronics and audio electronics)
generally speaking as i see it electronics as a whole are very different from how they used to be
we know a lot more than we used to. the way parts are made is much better. etc etc etc
less prone to the failures and imperfections of old
so a lot of these safety guards were put in place at a time when things were not as safe or robust
just like many things in our world today. we do things better and safer now because we can.
i’m not saying that these things are not necessary anymore or do not have their place still
they totally do but
moreso that while the potential for damage is still there
electronics seem pretty robust now that they can handle some abuse here and there
and everything will still be fine and joyful
hope this is helpful
and so glad u are digging
<#
Thanks for your reply @docshermsticks , I have something to digest… and experiment (hoping not to fry any of my gear)
Meanwhile: apparently the splitter also works with Macbook Air M2… I didn’t know it’s headphone jack also has input… here a dub riddim with Kastle 1.5 recorded into Audacity. Knob on the splitter adjust the gain going into the computer.
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no doubt
always happy to help 
like with most unknowns
just approach with some appropriate level of respect // caution
and u should have a good time
awesome!
yea should work with pretty much any combo TRRS “headset” type jack
i was using on my ipad the other day w/ the headphone adapter and the quality was superb
so i thought i was all out of these
but i stumbled upon some boards hiding in the back of the drawer the other day
prolly most likely will be the last batch of these
there are so many more uses for these now than just the OPZ
pretty much the whole Field range
ipad, iphone, microfreak plus many others
listing them at special ~50% off
@ https://digdugdiy.etsy.com
as always much love & many thanks!
2 Likes
Works great with a normcore Apple laptop. Good fun!
2 Likes
rad dude! 
been getting a few messages recently about this
so inspired me to dust off something i had put some work into but never finished
• MEMENTO
fka OP-Z TRRS SPLIT I/O
TRRS I/O AUDIO INTERFACE (SPLITTER)
& 2 CHANNEL PASSIVE INPUT MIXER
each with its own volume // impedance control
1x 3.5mm (pink) TRS input jack for things with smaller plugs
1x 1/4" TS input jack for things with bigger plugs
both INPUTS can be used simultaneously
• MEMENTO DELUXE
everything MEMENTO
plus OUTPUT EXPANDER
2x 1/4" TS outputs = separate LEFT and RIGHT stereo output jacks (BACK)
great for separating sounds // tracks for further processing
with the panning function
both OUTPUTS can also be used simultaneously
stay fresh stay rad <#
§§§¶
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Hoping more of the deluxe is made.
This device would allow me to output a signal from op-1f or op-z apply external effect and record back in w/ability to monitor?
yo! sorry for the late response
yes planning to make more of the deluxe
and yes if u pan your tracks correctly u can def do that
much love!
couple MEMENTO & MEMENTO DELUXE back in action
• MEMENTO
fka OP-Z TRRS SPLIT I/O
TRRS I/O AUDIO INTERFACE (SPLITTER)
& 2 CHANNEL PASSIVE INPUT MIXER
each with its own volume // impedance control
1x 3.5mm (pink) TRS input jack for things with smaller plugs
1x 1/4" TS input jack for things with bigger plugs
both INPUTS can be used simultaneously
• MEMENTO DELUXE
everything MEMENTO
plus OUTPUT EXPANDER
2x 1/4" TS outputs = separate LEFT and RIGHT stereo output jacks (BACK)
great for separating sounds // tracks for further processing
with the panning function
both OUTPUTS can also be used simultaneously
stay rad
much love
1 Like
I have the v2 trrs splitter and I am trying to use it with the tx-6 cue jack. I can use a common trrs splitter cable into the cue jack and it works but it doesn’t work with the dig dug opz splitter. Has anybody got the dig dug opz splitter working on the cue jack on the tx-6. I will mention I tried some continuity tests putting a trs cable into the pink mic jack on the dig dug splitter and checking continuity on the white trrs input cable and I don’t get any continuity from mic jack tip to the white trrs cable. I get continuity from the tip of the mic cable to one of the two parallel resistors but then there is nowhere else in the circuit I get any continuity to the tip on the mic cable. Maybe that isn’t an appropriate test. Please if anybody used this on the tx-6 please let me know. thanks
pretty sure this might be the same j pilarski that i have been corresponding with over messages?
but didn’t want to leave u hanging here just in case it wasn’t
if its not lemme know! (stranger things have happened )
It is the same thank you very much and I will post my findings and I’ll email you back once I tried out your suggestions. Thanks
sounds good
fingers crossed for ya 
It worked as expected with a line input and I’m happy with that. I kept testing the dig dug splitter with a trs mic but either it doesn’t like this trs mic or the impedance on the tx-6 creates an issue because it basically acts as if there is no input signal but with a line input signal into the dig dug splitter it works great. When I used a common trrrs splitter cable the mic worked fine on the tx6 cue jack and that’s why I kept testing it thinking maybe there was an issue but I think this might just be impedance related. Anyways thanks for your help and based on my findings it works well on the tx6 cue jack if using a line input.
glad u got it sorted dude
i wonder if your trs mic is expecting some kind of plug in power
maybe that your other trrs splitter provides on the mic input?
