Some friends and i play live often, my friends using hybrid mode and i’m only using the scene mode. We’ve never experienced anything like this when switching amps within one preset with a scene tbh.
ESPECIALLY Live i haven’t noticed anything. Even if i change whole stereo setups within one preset (like with 3+ amps), there’s no gap or something.
I should say that I haven’t measured the gap to 500 ms but it feels some hundred and is far too long anyway. I will post a video when I change scene while playing so you can hear how it sounds. I will also share the actual preset but I’m not sure how to do it. Can I just save my preset and copy it into this forum? Please explain the easiest way to do this and I will do it as soon as possible.
You can upload it to cortex Cloud within the QC and make it public to share the link with us.
A screenshot of the preset could be posted here. It could be useful, but uploading it to the cloud ( as DavidRSTV said ) would allow us to put it on our QC’s for a real world test.
Genuinely interested in whats going on with it
Here are screenshots of 2 scenes where scene E has a clean channel SLO100 active and scene H has an SLO100 with the OD channel on. I’ve tried switching channels using only one amp block, 2 blocks on the same row and 2 blocks placed on row 2 and 3 but there’s no difference. Please tell me if you see something wrong with this setup.
You’ll want to upload the actual preset to the cortex cloud so someone can try it. Hard to say just visually from the blocks. Switching channels on any of the single amp models on the QC has a gap, so we can ignore the possibility of that preset option. But that’s a pretty well known thing that’s existed for years now with various models.
I haven’t used my QC much since it came out (mostly because it didn’t have some effects I needed like a harmonizer) so what is well known by other users I probably don’t know anything about. However, I have managed to upload the preset from the QC to the Cortex cloud, make it public and here is a link to the preset:
Neural DSP Technologies - Algorithmically Perfect
When I was at it I also downloaded another users SLO100 preset just to test if I was doing something wrong in setting up the preset (which I actually think is a preset that came with the package I bought from NDSP) but it also had the same delay when switching between scenes. It is not possible for me right now but I will make a video with an example of what I could play in a live situation and you will immediately see the problem if there is not an instant switch from a clean sound to a lead sound. Thank you all for your time in supporting this question with tips! We all want the QC to be the best it can be and if we all set aside our personal needs that are already fulfilled and instead support other users in their needs the QC will end up being a perfect solution for studio, live and everything else.
Here is a screenshot of my ‘test’ preset. I’m tring some different things so don’t judge lol. I have three instances of the SLO. Two crunch amps in rows 1,2, ( one a little cleaner than the other ) and an OD in rows 3,4. I’ve had all three on rows 3,4 also with absolutely no noticeable delay with either setup switching amps with scenes.
Just by seeing your setup, I can’t see any reason you would be having trouble. The only difference visually is the way you have your splitter set. You may try returning the splitter to the same row ( if you haven’t already ) just to see if it could make a difference.
I’ll download your preset a little later this evening to test it and see if I get the gap you’re having. Maybe someone else will beat me to it, and determine what’s going on. I’m hoping it’s a simple fix
Thank you so much Krambone for your time and help! It seems like your preset has much more elements to it but if you can have immediate switching between clean, crunch and lead amps there must be something wrong with either my preset or my unit. I even tried a stripped down version of my initial preset where I discarded everything but the 2 amp blocks (clean and OD), speaker and put them on the same 1st row. Unfortunately it had the same result without immediate switch/ramp up/crossfade (call it what you will) between scenes so I believe it’s not my preset that’s the problem.
You are welcome! Yeah, I have a lot of things going on in this one, but the QC is like Honey Badger, it don’t care lol. I instantly saw that you should have plenty of power to run your preset.
I’m starting to think it could be another setting in global setup, or something not necessarily preset specific?
This forum is great for helping people out. I have learned a lot by just reading the threads. Hopefully we will get this sorted 
Ok, I played around with the preset, and can definately confirm there is a ‘gap’ of sorts, mainly in the OD block, that I don’t have in mine. It definately would be an issue for me trying to time it to the note for lead. So now I don’t think it is hardware related.
I also found there is more latency in the SLO OD amp block on my preset as well, just not as nuch as you have on yours. I hadn’t even noticed this with mine because it still can switch in time for the first note.This is understandable as the OD block is more resource intense, but again, it doesn’t delay nearly as much on mine as it does on yours
I spent about an hour with this so far, though I spent about half the time noodling with your tone lol. I love the SLO X! It has me puzzled as to what is different that is causing this. It has to be something in the preset setup. I just haven’t found it yet.
Here’s a link to my preset if you would like to see it. Maybe it will help. I use an Mc6 midi controller to change my scenes, so you may have to set it up to your footswitches
Can you double check that there’s no ‘scene assignment’ on the amp ‘knobs/switchs’ on the two SLO100 instances ?
It happened once for me with the JP2C amp, I copied the first block to a second slot in order to ‘instant switch’ between them byusing two scenes, but forgot that I previously assigned a scene to a switch that cause a small gap (those knob / switch usually have a small ‘i’ near them, indicating a ‘brief mute’ when switched).
I think I found the culprit.
On the second amp there is still a scene assignment for the channel. it changes between preset E and H. If you remove the scene assignment for channel the gap is gone.
For good measure you should also remove the scene assignments for crunch and bright, as they will also introduce that gap.
It works!!! Thank you all for the help! When I removed scene assignment from the OD amp the gap of silence disappeared. The only thing I wonder now is if the CPU can handle if I add a new amp block for every scene I want different amp settings on? I will try that later but for now I’m just happy that this works. Once again, thank you all for your input and time!
In most cases there should be enough CPU. Depending on how many other blocks you have, might have to distribute them between rows 1/2 and 3/4. But i have multiple presets using 4 amp blocks with some effects and stereo cabs without a problem.
On another note, you can definitely change the other amp settings without introducing the gap. If you, for example, just want to raise the gain, you can definitely do it with scene assignments.
You only have to be careful with channel switches and other settings with the “🛈” icon in the corner.
Great to hear it works for you now. Cheers!
I had just noticed this when I had to give it a rest . I had planned to dig into it today , but you beat me to it. Thanks for helping!
That sounds good and I will mostly do value changes within an amp block. In this case it sounds like 3 blocks of the SLO100 with their switches set to clean, crunch and OD will be the base and then just changes of gain, eq etc. in each scene.
Shout out to @BenM for nailing the solution as well!
So glad this was resolved, and I’ve learned something as well.
Yes, thanks to all of you who participated in solving this mystery and I learned a lot from this. 
