Komplete Kontrol S88 MK2 Sustain Pedal Not Working

choeichoee · 2025-08-10T16:34:44+00:00

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Hello, I recently purchased a used Komplete Kontrol S88 MK2 master keyboard.

The keyboard was in excellent overall condition. However, when I tried to connect my existing sustain pedal and play in my DAW, Logic Pro, I noticed that the sustain pedal wasn't working.

So, I Googled and found comments from others who had struggled with the sustain pedal issue, and I tried all the suggested solutions. However, my keyboard still wouldn't respond to my sustain pedal.

So, I desperately need your help. This is a real headache, and I've been fighting this for days. I contacted Ni by email, but the response was so slow that I couldn't wait for a response, so I'm posting this here.

Considering the possibility that my existing pedal was broken, I purchased a new M-audio SP-2 sustain pedal, officially certified by Ni, and tested it.

Let me explain my situation.

After connecting the keyboard to my Mac in the latest version of Komplete Kontrol, I checked if the app recognized my keyboard. Next to the MIDI settings panel, I saw that it recognized exactly 88 keys.
In the most basic MIDI panel, I checked the Pedal tab, switching between Tip and Ring, and confirmed that the CCs were set to 64 and 65, respectively. I tried turning one off and trying a multitude of other options, but sustain didn't work at all.
To check the MIDI input signal, I used a MIDI input signal check app to adjust the pedal settings, then pressed the pedal and observed the pedal without pressing it.
When I switched my pedal to a mode other than Switch mode, I confirmed that CCs 123-127 continued to log even though I wasn't performing any actions. I also occasionally check the input log for "demper" and "portamento." Portamento is recognized as a CC65.
Given this, I've confirmed that the pedal isn't defective or not being recognized. If I'm wrong, please explain in more detail.
I've tested the SP-2 pedal by constantly changing the polarity, and I've tried everything, but nothing has changed.

Is it because the Komplete Kontrol file path isn't downloaded to my MacBook? I understand others have easily resolved this issue, so why is it so complicated for me?

My Komplete Kontrol app is version 3.5.0, the latest version.

PS. I have another question: I also downloaded the latest version of the Controller Editor app, version 2.8.2. There's a Connect button in the app, but it's not activated. This is driving me crazy. I'm not sure if my hardware is missing some important file or if it's not downloading properly. Please help.

To help clarify this explanation, I'll attach a screenshot I took.

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Uwe303

Hello,

this pedal is only tip to sleeve (switch), ring to sleeve is shortened, so maybe try to set tip to what you need and sleeve to something unused or off if that´s possible, cc41 it´s unused/undefined. And maybe turn pedal b off if you don´t use it. Polarity is just a switch to set the switch as opener or closer, just set it for unpressed value is 0 and pressed value is 127.

choeichoee

Hello, thank you for answering to help me. I just don't understand it very well. 1. What does it mean to turn off the sleeve? 2. Does it mean to enable the Tip and leave the Ring Off? 3. Does it mean to turn off the Pedal B because it doesn't have a connected pedal? I'm really sorry, but I'd appreciate it if you could explain a little bit more in detail

choeichoee

Why don't Ni officials give you quick feedback on the issue? I don't know how many days I've been having a headache over this small problem. Please take care of it quickly..

Uwe303

https://community.native-instruments.com/discussion/comment/237103#Comment_237103

Exactly that, just use the tip setting, ring is shorted anyway by the plug, cause it has just 2 instead of 3 contacts, or set, as I said before, ring off, if that's possible, or set it to some unused midi cc. Pedal b should not produce any midi data but maybe turn it off, just in case, can help to rule that out Have you tried kontakt stand alone with the midi monitor script?

Jeremy_NI

@choeichoee Let's check a few things.

You mention the issue happening in Logic, just to be 100% sure, this is also happening in Komplete Kontrol in standalone? If the issue is only happening in Logic it's most probably a wrong MIDI setting, this happens frequently, that's why I'm asking you to double check.

There are two inputs for pedals on the keyboard, have you tried to set the sustain pedal in both?

If issue is the same in both inputs, can you check that there isn't another knob or button assigned to the MIDI CC 64 or 65? That can create conflicts and "steal the MIDI CC64 & 65 information". You can also reset the MIDI assignments to default by creating a new template.

Also double check for MIDI assignments for the Komplete Kontrol application when the keyboard is NOT connected. Everything is summed up in this post:

https://community.native-instruments.com/discussion/5234/tips-how-to-fix-sustain-pedal-issues-on-our-mk2-keyboards

Let me know if any of the above helps.

Also a couple of other points. Controller Editor is only needed for MK1 keyboards, for MK2 everything is handled in the Komplete Kontrol standalone application.

And regarding NI reps, we do help users whenever you can but we can't see every post and it's not a substitute for support. You did the right thing to get in touch though, I've been dealing with quite a few sustain pedal issues. I hope we can get your pedal to work and that it's not a hardware issue.

choeichoee

I looked into this method and tried it, but there was no progress.

Jeremy_NI

This looks like a hardware default then, you should definitely return the unit. I saw that you also requested licence transfers, my colleagues will get back to you as soon as possible.

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