Have you tried re-installing the firmware ?
I've found with other gear sometimes that helps.
I made a factory reset how indicated by the support team. The first time, 1 month ago this seemed to solve the problem, that appeared again after 2 weeks. Not it seems to work, but I don't know if it will not reappear. Regarding your question I don't know if the factory reset is doing only the operating system reset or also installs a new firmware.
Display MoreAre you connected to anything via usb when this happens ?
I had the same problem with my player for a while, identical weird sound, I'm always connected to my PC.
I changed my usb cable to a better one and not had a problem so far.
You mention it only happens on start up, mine was the same.
I had problems for a while switching between the Kemper and a focusrite interface in Reaper.
The kemper would cause Reaper to freeze and I'd have to restart everything, it was then I'd sometimes get the weird sound, another restart would fix it.
It happenned while connected to my PC while at home, but also on two venues when no USB cable was connected, and only my Ipad through Wireless.
In my case the USB cable semm not to be causing the problem.
Since one week more or less the problem did not appear anymore. What I seem to have noticed was that the white power led was not 100% on while this happened but somehow dimmed. But this maybe it's not true, I will note this if it happens again. Last time it happened, on the 18.11 it was easily to reproduce, I have done another Factoryy Reset and tested with the factory content for two days then restored my backup. Since then all Ok, hopefully it won't come back. One of those "Strange things".
Did you shut it off between soundcheck and show? Because then that's another issue if it comes back after being on. I have a rack but all of our gear stays ON after soundcheck. Usually that's 2-4 hours.
Good question!
I shut it down after the soundcheck, because we have to free the stage for a dancing group 
The problerm never appeared when while the unit is on. Only after a new start. And not always !
I had two weeks with no problems, than one day when after each plug-in to the socket the problem was there. Since yesterday it's again working fine.
The suport team suggested testing with the factory content after a reset. Unfortunately I can't stay on the factory reset setting till the problem appears again.
Today I tested again and got some additional information on the issue.
Firstly I made a backup, and reset the unit how suggested by the support team. Then restored my backup.
Maybe an important notice: I use a remote controlled power plug and after shutting down my Kemper I cut the power off with the remote, so the white led is not lightning anymore during night and the unit gets no more power.
When I switch it on, I first use the remote to activate the plug and afterwards switch my Stage on. And I get this awful sound.
Today I tried to switch on off some of the effects to see what happenns, and see if this has some effects.
Switching on-off the effects before the Amp section had no effect. Same for the effects after the amp and cabinet.
Switching the Amp and the cabinet off, takes the clipping away, you hear a normal sound, with no amp and cabinet at a lower volume, obviously. !!!
So the problem seems to be in the Amp section that is giving back a bad sound in the chain.
Activating the amplifier or the cabinet back on, brings the clipping back. And you can do this more than once. Also activating only one of the two, amp or cabinet has the same effect.
What I noticed, after switching the amp off, the sound is still bad for a short time 1-2 seconds then is goes to normal. Switching the amp on, the sound is immediately bad.
I switched to several other performances , to use another profile amp but the problem remains.
At a certain point, after several cycles, the sound was clean even with the amplifier on. Changing the performance, it started again clipping. So in this situation you can’t do nothing but only reboot the unit ( press the button till is says goodbye).
Of course I don’t switch the remote plug off and only restart my Stage. Everything is Ok.
Switching again off the remote plug off ( after a shutdown of the Stage) and powering it back after a couple of minutes and starting the Stage, the bad sound comes back.
Actually what is consistent in my case, I get clipping sound when I first switch on the unit after plugging it on to a power supply. After a restart ( leaving it connected to the power supply ) it returns to normal. It is not related to my remote plug, on the two events we had last week it happened the same as at home.
I don’t think this is a normal behaviour. I actually can’t rely on this.
If anyone has some ideas ( except leaving it always plugged in ) please shout out.
I attached another recording session when you hear the different events, bad sound than no clipping when the amp section is off, than repeated.with two other performances.
Still having the problem!!!
After two weeks with no issues, last days it happenned again We had a small gig, and powering on the unit for a sound check gave me that awful sound. Switched it off-On, all back to normal. The gig went well. Yesterday a somehow bigger event, start the unit bad sound, Restart again normal. After the soundcheck break, when we entered to play, I got the bad sound, restart everything ok.
I was lucky to go through our gigs with no firther problems, my mates were lookong strange at me. This starts to worry me a lot. I will reopen the siupport ticket and see what they say.
Till now I could not find a pattern when this happenes. I am somehow clueless.
Solved: After checking the content with : Power on keeping Rig button pressed, seems that the issue is gone. It sounds again like a Kemper!
Most probably caused by switching off the Profiler in a not proper way.The support guys suggested that.
Thank you. I have thought on that too at the beginning. This bad sound comes also in the Kemper cabinets connected directly to the moniror output and in the headphone output of the profiler. After reboot without changing anything it comes back to normal. Than next time, randomly it gets back to the clipping sound. It is weird.
Thank you!
I opened a ticket and send a backup and a sample of the bad sound to the support team. (I attached the clip even here).
The problem appeared even today several times. Rebooting solve it but not always.Sometimes you need to reboot more than once.
Hi,
I use the Kemper since 7-8 years, my last one is a Stage MK2 that I started using 3 months ago.
I connect the main outputs to a Focusrite Scarlett Audio interface, and the monitor outputs to my two Kemper power cabinets.
I use three pedals for Volume, Wah and Morphing, and the latest OS Version:13.0.5.61298.
No problems till today . I have started my profiler ( the Kemper power cabinets are switched off ) and I heard only garbage sound in the speakers . A lot of clipping, I could hear the notes but with a lot of noise above. Actually unusable. All cables were set correctly. I even started some music on my PC the sound in the speakers was ok.
I powered on the cabinets, the same bad sound also in the cabinets output. I tried to listen into the headphones attached to the profilöer, even there the same bad sound.
I changed the guitar cable, also no effect.The profiler display and the Rig manager did not show eny error messages.
At one moment the Kemper has rebooted itself, and after that all returned to normal. I don't know the reason for the reboot.
Well, I was not sure what happenned, so I switched it off again and restarted. The same bad sound came again!!!
I have switched to Browser mode then back to Performance, loaded different rigs and/or performances no way to make it sound again correctly.
Then I switched the profiler off/on once again, everything is back to normal.
Now I have a doubt if this happennes ad the Z day of a gig.
So my question: Has anybody encountered such a problem? Is there something stupid I have done and need to check?
Thank you for your attention and for the solutions!
My Regards,
Cantemir
I have all performances filled, that's maybe why I get the perf 125 with the strange slot name fff&ffff as seen in my third photo.
Thanks to Slateboy for opening a support ticket.
It was also on Stage MK I available.imho … sorry, you meant the rack not the Stage.
I asked the same question several weeks ago. It was always like that.it’s not a bug, it’s a feature.
Hello,
as I wrote in another thread I am new to the Stage, but used the Toaster for 8 years,
While exploring the Stage features I noticed that the two knobs Browse and Type have now also a Push function. That's very nice.
I was on Performance 57 that was selected.I pressed the Type knob once, it showed the slot details,
Then I pressed Type again. It showed number 128 as performance number ( that's weird )
and if I choose to select this slot by pressing the slot number button below, it shows some very strange slot names like fff&fffffff on all slots and moved to performance 125.
I could return to my Performance by pressing another slot, but sometimes it remains at performance 125 which is not very nice.
I added photos in the same order I got them.
I can reproduce this easily. Am I the only one experiencing this?
P.S. Don'T ask about the time on the display, I reproduced it several times so the time showed in the display is not relevant.
My regards,
Cantemir
Those are two different power amps so I would be very surprised if 10% output on one matches 10% output on the other…
The GPA delivers 190 something watts at 4ohms if I recall correctly.
Like Ingolf suggested, I would crank them and control the output volume via the Stage, then use the power amps output to level match them.
Thank you for your replies.
Hello,
on my Stage MK2 I use two Kemper Cone cabinets.
The first one was built be my for my previous powered toaster using a Cone loudspeaker from the Kemper store and a Harley Benton enclosure. After moving to the Stage I added a Harlev Benton GPA-100 amplifier for powering up the cabinet. Everything was working fine. The GPA-100 is a 100 W amp.
To achive some stereo I also bought the Kemper powered Cone cabinet ( the original, not one built by me ) and expected to get more or less the same sound.
The powered Cabinet used a Cone Neo speaker and has according to the specificartion 200 W.
What I immediately noticed was the much lower volume on the Kemper powered Cone cabinet compared to the one built by me + GPA-100. .I have to turn up the volume arount 14:00(75%) to get some decent volume on the Kemper powered cabinet.. On my DYI cabinet when I put the GPA-100 at 10:00( 30%) it sound a lot louder than the original Kemper.
I know that I compare apples with pears, two different enclosures, two different amps, and even the loudspeakers are not the same model, but the difference is IMHO too big.
Any ideas or thoughts on this "problem".
Thank you!
I've seen those clear molded covers for pc keyboards and wondered if there was such a thing for the Kemper Stage?
Any ideas?
You can try this site knkshields.com. They have what you want.
Regards, Cantemir
Sorry, I haven't seen all replies This site was already reccomended.
They were never there. I was never here. Key in " The X Files" theme or "Mandela Effect theme".
You mean it took me 8 years( bought my first KP in 2017) to notice something that was always like that.That‘s funny.
Thank you.
Today I sat closer to the Kemper screens and noticed that a small part of the image is missing.
I noticed that on my Toaster Power Head and also on my Kemper stage model. The rectangles enclosing the labels of the soft buttons are missing the top part.
Both profilers have the same version 12.1.2.57916. I could not notice any missing part on the remote of the toaster because the displayed image is different.
It doesn't bother too much, but still...
Am I the only one with such sharp eyes to notice this, or the onyl one having two bad screens?
See attached image from the Stage. It shows identically on the toaster..
Thank you!
Cantemir
Are the Distortion and Clean Sens the exact same for both Profilers?
I made a backup of the old Power Head and imported on the new. I checked all parameters.
Hi,
I am using a Power Head Profiler since 2017 and acquired recently a Stage model. I restored a backup of the Power Head on the Stage, so they have identical OS versions and content. I have connected the main outputs of one to the inputs 3,4 of a Focusrite audio interface and the mains of the second one to inputs 5,6. Both are connected with identical cables and the Focusrite mixer is set equally on all 4 inputs.
When I play the same rig on both profilers, sequentially, by switching guitar cable from one to the other,I got a much higher output volume from the Power Head (Toaster) than from the Stage profiler. Needless to say, master volume and rig volume are identical and I do not use the internal amplifier on the Power Head.
Is this expected or I do some error? I read the specs and noticed that the line out has a higher value in dB on the Power Head compared to the Stage.
Any hints? Thank you!
