Looking at the photos above I’d say this is what’s required. I’m going to try the 3.5mm mod myself and will let you all know if bridging this removes the requirement for the R plug to be in to activate stereo output.
Finally got around to the 3.5mm socket mod last night. A couple of things for anyone else trying this to watch out for:
- If doing this again I wouldn’t try to disconnect the original input/output daughter board connectors from the main board. The connectors are rightly lodged in and I damaged two of the wires where they go into the connector and had to repair it. Just unscrew the output boards sockets and slide it out of the way, but leave it connected to the main board.
- Ensure while testing your source device volume is up… I’m embarrassed to say I lost a good 30min diagnosing this issue when it was just too low to hear
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Also soldering both right and left input/output grounds seems to work.
The only issue I have now is that once the batteries are in it turns on straight away, something to do with the new 3.5mm sockets or wiring. I’m thinking the paired grounds. Anyway, I’m probably just going to wire an on/off switch too from the battery positive to sort this out.
Overall a pretty good mod, makes it much easier to use with a smaller more portable setup while still allowing the existing input/output connectors to work.
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Looks like this sort of stuff
https://www.amazon.co.uk/Temperature-Resistant-SACONELL-Polyimide-Sublimation/dp/B07W3M8XV8
I would like to share my experience on this pedal. The USB connection with the computer is very useful for fx programming: there are hundreds of online presets to download and this is really practical. I crossed the red line when I heard about custom firmware: I tried to install the firmware and … BRICKED! The pedal is definitively dead with no way to resurrect it. Luckily I was still in Amazon’s grace period and returned it.
I probably did the wrong update procedure, I don’t know, but I would like to warn users: installing custom firmware can be lethal for the pedal. if something goes wrong, the risk of killing the unit is a real possibility
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I have 2 and have hacked them no problem…
Does anyone have any comparison experience between the MS-70CDR and, say, the built-in effects of the Korg Modwave / opsix / Wavestate series?
I wish there was a compact pedal with chainable multi-effects to make my effectless synths sparkle and punch the way Korg’s engine does.
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The MS70CDR’s FX are chainable. Whether or not they sound better than the Korg stuff seems like a personal opinion to me. 
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Yes, the chainable FX are what is driving me to the MS-70CDR! (Plus, the adorable graphics are too fun 
)
Well, that’s an answer I can live with for sure. Thanks for response!
See, the synth this pretty-much-decided pedal is going towards is actually my Korg Radias…which has what you could call FX but are really rudimentary, not great sounding, and generally insufficient. The EQ can’t seem to address the nasal quality of the synth - but it’s my baby. I’ve used Radias since 2007 and it’s still so powerful–and practical for live performance…I just wish I could use better effects.
The only other condender to the MS-70CDR would be a Line 6 HX Stomp which could actually act on all 4 analog outs of Radias…but its way more expensive.
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I did not do a direct comparison, but in my opinion Korg’s contemporary options are in general of higher quality.
Zoom CDR effects have that… How to call it. A subtle digital graininess, like almost audible 16-bit truncation. Of course the real resolution can be higher, that’s just how I perceive it. On some effects it’s not audible, but on some it was clearly heard. It’s sort of mixed bag really.
Maybe it’s not relevant at all for the guitars, but on my electronic recordings with the effects the Zoom character was quite obvious to me.
Korg effects usually have sound which can be characterized as “sweet” and “warm”, they have some wide sweet spots. Maybe less parameters than on Zoom for most of the effects (which may have 3 pages of controls).
By the way Korg did have a comparable pedal. What was the name, Pandora? Looks like obsolete for years.
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I have to admit I mostly just set and forget the MS-70CDR parameters as they’re not very user-tweakable, partly thanks to the clicky encoders, which are fine, but don’t encourage something like rapid filter or time sweeps.
Someone I know had one of those for a long time and found it useful at the time, and recently told me about the Yamaha MagicStomp, which was one of the first multi-effects with a screen on a pedal.
New models 
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Would love to know what’s the new features for the CDR+, could not find any info yet 
Let’s hope these can be hacked as well. 
No on and off button still 
I mean, it is designed primarily as a guitar pedal…
None of my guitar pedals have on/off switches.
Cheers!
I’ve just seen an IG reel previewing the MS cdr70 + but i didn’t saved it…and it’s now lost 
After a Little search on Google i’ve found the specs from this store:
This leads me to believe that the release date is near! 
Edit: typos
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Korg effects are more airy and transparent. The ms-70 is a little dirty and noisy, but due to the flexibility of settings and a variety of effects, it is suitable for deeper sound design, it is more in settings and combination of different options for the chain of effects.
One of my favorite patches with the MS-70CDR that i’ve heard so far.
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Finally the release of MS-70 CDR+ on 22 May
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What is the difference with the original?
Edit: here is an article…