Can someone confirm that this sounds normal?

For both @ashtweth and @Fireloogie, I totally agree with @Ibot39, I've definitely heard this kinda noise with tube amps. I reckon it depends on a wide range of factors which can emphazise this: poor power conditioning being the first one, but also amount of gain, some pedals in the signal chain (I know it's not the case), poor shielding in the guitars, etc...

Sometimes other gear's EM fields might also affect drastically the sound you're getting from your speakers. I've got the feeling that if, for example, (keeping all the cabling and other equipment he might have just the same) Ash swapped his units he might be getting the weird noises in the other unit.

I think it might be a similar problem as the one in the thread @808illest found.

Quote from 808illest

Maybe you have tinnitus haha, just kiddding ash! That is really strange, I wish I could offer some support other than moral support that this get resolves swiftly so you can enjoy the only buzzes that matter, for you both!

Edit: I just noticed this post but..

Help - Crackling

If Ash could try swappin' his KPAs we might discover something interesting! Or maybe not, hehe

BTW I heard the clips from the OP thru some crappy earbuds, I might have missed something...

Cheers.

I dug old the old thread I made on the subject - provided we're talking about the same noise:
Strange noises inside my kemper!

thanks guys so strange I had a long 4 hour jam last night and guess what no noise on both kempers so maybe I need a priest to get rid of this sound

ah man it's prob all those factors I feel sorry for the op , @Fireloogie pm me brother to cheer you up I'll shout you a rig pack on me

Ash

Quote from Fireloogie

I am going to order an AMT Preamp.

Hmmm... That's a bit of a crap shoot, isn't it? What if it is indeed "normal" tube behaviour, but not all amps exhibit it to an appreciable degree - or if it is dependent on the specific settings etc?
Then you can only make your conclusion for one specific amp.
I don't know what the AMT preamp is, but from the name it sounds like it doesn't have power tubes. What if the issue is related to those?

I'd suggest you start by going to a store and playing a number of real amps to see if you can recreate the issue on those instead.

Quote from Fireloogie

But it definitely should not be on EVERY profile then, should it?

Yes, since the problem might be caused by (for example) the proximity between your KPA and some other equipment, as a Laptop, a a desktop PC, a LED or TFT screen, etc... The problem isn't necessarily in the profiles (even when some of them seem to bring out the issue more prominently). Have you tried moving your equipment around? I mean, separate the possible culprits? I'd even try setting up the kpa in a different room or even in a different building, it might well be just electrical noise which amongs others can be caused by induction, conduction...

Cheers.

If it was external interference you should be able to hear something with the guitar volume turned all the way down

Quote from Michael_dk

If it was external interference you should be able to hear something with the guitar volume turned all the way down

Not necessarily, I reckon. Some pickups can be noisy AF in some environments.

Quote from Fireloogie

Hi.
I have two completely separate setups with different speakers, cabels and even soundcards. One setup does not need a computer, but it can - hence the second soundcard. They are in different rooms. Though my recording place may not be high end, it is still all valid and up to date gear. I also tried the KPA in a friend's homestudio.

Believe me, I'd be lucky if I found it was something outside the KPA.

And you get exactly the same noises everywhere?

Before moving into a new house, my guitars picked up a lot of strange "noises" and I was not able to address them all. Some noises only at certain times (hobby radio operator?), some always. Once I changed a single light bulb, it helped a lot

I also have a Furman power conditioner now- but I don't want to promote anything.

How "pure" does your setup in your room(s) sound, if you grab a single coil guitar and activate a very high gain profile without noise gate? Now you can actually hear what is going on in your room - just listen to all the noises around!

Even humidity does affect these issues - for example static discharges.

Quote from sercho

Not necessarily, I reckon. Some pickups can be noisy AF in some environments.

Sorry, of course... At least it should be audible with the strings dampened, I should say then

.

Quote from Ibot39

Before moving into a new house, my guitars picked up a lot of strange "noises" and I was not able to address them all. Some noises only at certain times (hobby radio operator?), some always. Once I changed a single light bulb, it helped a lot

I also have a Furman power conditioner now- but I don't want to promote anything.

How "pure" does your setup in your room(s) sound, if you grab a single coil guitar and activate a very high gain profile without noise gate? Now you can actually hear what is going on in your room - just listen to all the noises around!

Even humidity does affect these issues - for example static discharges.

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Exactly!

Quote from Dean_R

It can be related to this because I have similar problems if I user certain appliances in my "Guitar equipment room" like a portable heater etc. I'm considering getting a power conditioner. But in this case for our friend Fireloogie he might want to take the Kemper to a different house and see if the noise disappears then possibly a power conditioner would help.

Definitely with Dean here, take your KPA somewhere else to recreate it.if you can? Also, power conditioners are a must in my mind, it'll protest you from spikes, surges etc... which happen daily and over time with do damage to equipment, especially RAM in your puter! It doesn't have to be the latest and greatest furman either, just one that does it's job. Hope you make some positive steps to a solution

You guys are gonna laugh at me, but when i played my guitar in my Boxer shorts and a little distance i get no issue, so i think its a grounding /distance issue for me. It hard trying to answer the door in your boxers man

Ash

It's the belt. and the metal buttons of your fly

Good luck, keep us updated!