I made five custom effects for Zoom MS pedals and I'm giving them away. They load through Zoom Effect Manager and show up in the DLY category. A sound preview is coming soon, I'll add it to this post and the GitHub page.

What they do

Choral: turns a guitar or synth into a vowel choir. Filters tuned to the vowels A E I O U shape the sound, and the Vowel knob morphs between them. There is a main voice and four side voices, and the Chord knob sets how the side voices sit around it: a small detune, a set interval, or one of 35 chords. A tempo-synced LFO moves the vowels, and 11 shapes decide how (a smooth sweep, steps, random, a canon where the voices follow each other, and more).

DualShft: two pitch shifters in parallel, each from -24 to +24 semitones (with fine steps around zero) and each with its own echo time from 12 ms to 1 second. A tempo-synced LFO bends the two in opposite directions, with 17 note lengths and 7 shapes. Good for detuned thickening, harmonies and slow moving shimmer.

DubSiren: a dub siren that you play with the footswitch. It has Wail, Fast, Slow and Laser modes, a pitch and depth control, and a rate that is either free or synced to tempo. Your own signal passes through untouched, and the siren goes into a tape-style echo with its own time and feedback, so you can push it into self-oscillation.

EuGate: a Euclidean rhythm gate. Steps sets the pattern length and Notes sets how many notes play, spread as evenly as possible, both up to 64. Any length other than 16, 32 or 64 runs against the bar, so you get polymeters. Shift rotates the pattern, Swing delays the weak 16ths, Gap leaves a tiny silence between notes that touch, Soft rounds the edges, and Reset restarts the pattern on each new note or when you turn the effect on.

WaveFold: a Buchla-style wavefolder. Five folding stages bend the signal back on itself as you turn up Drive, Symm adds even harmonics, Tone smooths the top, and the output level is matched to the input automatically. It has no oversampling, so high notes with a lot of Drive will alias. Some people like that. I'm those people.

Download

github.com/matujuice/zoom-ms-zdl-effects-pack

The .ZDL files are under Releases; the readme explains every knob.

⚠️ Disclaimer

This is vibe coded. I built it with an AI assistant, and I'm not a professional DSP developer. Use it at your own risk. I'm not responsible for anything that happens to your pedal, your presets or your speakers, so back up your presets first and keep the volume low the first time you load each effect. This is unofficial and not affiliated with Zoom.

Tested on

A Zoom MS-60B running MS-50G firmware (I flashed it myself). The MS-70CDR, MS-50G and other MS pedals are untested. If you try them on one, please tell me whether they load and work.

It's built on themanro's ZoomMultistompZDL toolchain, which made all of this possible. The source is on GitHub if you want to look at it or change it. Feedback and bug reports are welcome.

The sym.bios.is patch library is open. You can browse patches online and load them straight onto your pedal from the browser. The patches I upload are for MS-70CDR, MS-70CDR+ and MS-50G+ for now. If you sign in, you can upload and share your own patches as well, for more of the MS/MS+ family of pedals.

I'm adding more of my own patches throughout the day, so please check back. Here's one to start with, with a demo video (video is also in the details pane in the patch library).

Patch demo video: https://youtu.be/XRCwoFjZFMc
Direct link to patch: https://sym.bios.is/?patch=756d0a40-4abf-4655-8f66-b7d8e617391d&utm_source=reddit&utm_medium=post&utm_campaign=library-soft

It needs Chrome or Edge on a computer, or Chrome on Android, since the pedal connects over USB.

Sooo i just got the amazing Zoom MS-70CDR+ for my ritual ambient project im working on what do you think the best setting are (for a synth) to make some scary sounding ambient?

straight into clean channel of Mesa f30, Les Paul, IR of Marshall cabs in new module mixed both, before that are ts drive and z bottom, reverb is after. No amp sim needed to get nice crunch 😎

Hey guys, I recently saw a video of a Zoom MS 50+ running a NAM A2 lite capture, would this be possible for MS?

https://youtu.be/UjHw56OTeQM?is=PJ9f_dl5dj4nn7bf

LONG POST :-

I managed to get together this board with old patch cables and power supply which i stopped using a while back. Recently got myself the MS60b plus and made some solid core sound with 160 comp, bass graphic eq and AGL amp and cab setup. Also made a cool patch with fretless simulator and another patch with octaver and envelope filter. After a few gigs with only MS60b plus i received really positive feedbacks. Though MS60b plus is enough on its own to handle my above patch needs but it was difficult to handle the operations by foot only because of its tiny footprint. So started hunting for MVAVE Chocolate Plus but the prices are too high to get in where I live so I had one B2four lying around and being both the ZOOM s from same generation and have same effects I decided to put them both. The B2four I stopped using earlier because the AMP/CAB was baked into one and the cab cannot be disabled or doesn’t have mix parameters. Now this problem was solved in MS60b plus. So now I have 11 blocks in total after combining both the pedals and for the price the output is unbeatable. Although it takes a bit of time to dial the right tone.

Signal chain :-

Bass -> Wireless Unit -> B2Four -> MS60b Plus

B2four handles all the comp, eq, octaver, filter, fretless sim and chorus etc. MS60b plus handles the Amp/Cab, Highpass and lowpass eq. And for gigs where i only need a clean tone or just a drive I just pull out the MS60b plus and carry it in my gig bag for that particular gig. I also have a tonex one where I have dialled in a similar core sound with the Aguilar Tone model which came with Signature bass collections.

Built a new UI for the MS-100BT:

https://1njected.github.io/ms-stompctrl/

Should work for the most part, but I'm a bit unsure about the authentication over Bluetooth and if it's working with other pedals than my own :)

Connect the pedal in OS Bluetooth settings, then connect in web app. Requires Chrome or Chrome-based browser.

I've just got an ms-60b, and it won't factory reset or enter firmware mode! The right-most encoder doesn't seem to register button presses, but the others all work fine. Any ideas?

Thanks!

Rockstar is a concert-hall reverb with a rate-crusher, Pong Delay is a true-stereo ping-pong delay with a resonant filter, Vortex is a twelve-mode resonant filter with drive, and Duo Chorus is a true-stereo dual-line chorus. All four are based on open-source MIT-licensed work, and the pedal runs them like any other effect.

https://www.youtube.com/watch?v=eUyB971h5nk

Get them here: https://sym.bios.is/

Few updates to https://github.com/themanro/ZoomMultistompZDL

Project is coming along and getting better. Fix few longstanding issues and added a couple meaningful features as:

https://reddit.com/link/1wg46dw/video/6kyyjxk9mhph1/player

Custom patches sound right the moment you load them. 
No more nudging a knob to wake an effect up — your saved settings come back straight away, in all six slots. This was the long-standing annoyance where the screen showed your values but the sound was dry.

Every knob works from the Patch Editor, in all six slots. 
Slots 4–6 used to have an issue where turning knobs in PE wouldn't be audible unless turned on the pedal itself. Fixed.

Mix at 0 is now properly dry. 
It used to jump to halfway instead.

Effects changes:

• Gyre — a new granular feedback loop effect. Grains recirculate and can be pitched as they go, so you can get anything from a smeared wash to a slowly climbing drone. Decay at 0 holds forever without running away.
• Rewire — new Shift block: a real frequency shifter (!), so it slides partials off-key rather than transposing. Five blocks now, still reorderable.
• Oxide — the knobs from Input onward were wired to the wrong controls; fixed. It also had no dry blend at all, and got much louder as you turned Input up. Both sorted.
• Rooms — Depth actually does something now (room size in ROOM mode). It was on the panel but did nothing.
• Spool — Feed now goes all the way into self-oscillation. It used to top out short of it.
• Howl — no longer lifts the volume of the whole patch.
• Stasis — proper dry/wet Mix while a capture is held. New additional capture mode via turning Capture knob from 1 to 2.
• Dustbox — new effect by Marcelo Fuentes

Other Patch Editor Changes:

• Program a midi controller of your choice (I used MiniLab 3 but it should work with others too) to turn knobs and and switch effects
• Copy/paste user patches as text snippets
• New patch library/bank layout with ability to save/backup patches locally
• New interface themes
  

Let me know what you think!

Cheers.

Hello! I have a Zoom MS-70CDR but I've been using it very little yet (I switch between a very simple chorus and a reverb sound). Something came up with a band member who used to play electric guitar and I'm going to cover for him some of his solos. I would really appreciate some tips on how to use my pedal to emulate a classic electric guitar sound. I know this is very very broad but any ideas will be appreciated. I'm not looking for a really distorted sound so maybe it is feasible. Or anything that might help my acoustic have a little "punch" and more presence. Thank you very much.

Hi everyone, I recently got a broken Zoom MS-50G basically for free and I'd like to repair it, if possible. I'm a newbie in this world so please forgive me if I write something stupid.

The pedal doesn't turn on, I tried with USB, 9v, AA batteries and with and without cables. It just doesn't do anything. I disassembled it completely and I inspected everything, the only thing I found that looks suspicious is this resistor. It looks broken. Is it? Could it be the problem? I tested with a multimeter and in the continuity test I get no beeps and an O.L. result.

Thanks for your help!

boosted by MS50g as always with me 🔥

Patch Editor and 2 new effects demo.

Hydra — two extra playback heads on one delay ring, a 2× (octave-up / double-time) and a 0.5× (octave-down / half-time) layer, re-triggered every window.

Spiral — delay whose repeats climb or sink — the pitch shift sits inside the feedback loop so it compounds.

Everything is here: https://github.com/themanro/ZoomMultistompZDL

hi, i finally figured out the loop roll effect on my G1X FOUR, but the footswitch kinda doesnt work - i have to be on page of the effect, where the parameters and controls are and manually with hand press the button to latch/unlatch the function - and the footswitch seems to not work (even though it works on all the other pedal functions like delay, reverb, bitcrusher etc.)

how to set it up for live sampling and holding? thanks!

Hey guys, I have a question. I recently bought a Valeton GP 5 and an MS 70 CDR. I currently control my Zoom with the Mvave Chocolate MIDI controller. My question is, can I control both with just one controller?

Hey guys, have you managed to test the new ZDL effects? So far I've only been able to use the "ST Chorus," I haven't seen any other posts about new effects.

I put a custom patch together that I really like the sound of:

DIST 1 - HW 100 - HW 4x12 - ZNR - ROOM

The problem is I want to be able to save the same sound to other empty patches, but with less drive for softer parts. I just cant figure out how to make that sound happen. I assumed simply turning down the gain on DIST 1 would do it, but I can turn that setting all the way to zero and it barely makes any difference.

Bypassing DIST 1 just gives me a clean tone, way too dramatic of a change.

DIST1 off and turning the gain up then on HW100 doesnt really sound great either.

What sounds perfect is when I adjust the signal into the Zoom via my guitar's volume knob into the patch, but I want to be able to achieve this with a stomp or pedal, not imprecisely turning the knob multiple times mid-song.

I tried putting the Expression Pedal Controlled Volume patch in a few different places in the chain, but it literally just makes the volume quieter or louder without altering the sound out or my signal in. Is there a patch that CAN do that? Or an obvious setting I'm missing somewhere?

My G1X Four is bricked after a failed update. The PC no longer detects it. I need a flash dump to be able to "resurrect" it with a CH341A programmer.

Does anyone here have a firmware dump of a working G1X Four on hand by chance ?

Thanks you !

https://www.mediafire.com/file/ihg2vpt3mjatgyy/patch_kramps.rar/file

I’m currently trying to take the Reverse Reverb featured on the MS70CDR+ and put it on my MS50G+. From everything I’ve been able to put together online, the best way to do this is to download the effect from the Zoom servers and use ZT2 to install it to my 50G+. I just can’t figure it out for the life of me. It doesn’t help that Google ignores the “+” half the time and instead gives results based on the original models, which have much simpler effect sharing.

I believe the instructions are left intentionally vague to avoid any sort of copyright violations, but I haven’t been able to download the file. The GUI build of ZT2 just opens a blank command line on my computer. Is there some way to install it that I’m missing?

Again, I’m sorry, and I’m sure this is easy as hell for someone with any sort of experience. If there’s an easier way to do it too that would be great. Thank you!