Profiling signal seems very hot...concerned about amp speaker.

Make shure that the Distortion Sense is at <0.0> when you do the profile.

When profiling, you can specify IF it is a clean or distorted profile, select which one you want. If there is any amount of overdrive, I would select distorted.

Would be safe to operate at safer levels For sure, but I don't think I have heard of a blown up amp yet.... still probably best to use caution profiling at extreme levels that may damage your amp speaker.. The more power amp distortion you get anyway, I believe will not be as benificial in the profiling process..

Quote from Gizmo

Hi all.

Finally decided to profile some of my amps. Very impressed with how close the profile gets to the actually amp.

One thing is bothering me though, the profiling signal seems to beat the heck out of my amp.

For example, I've just profiled a old silverface Princeton Reverb with the volume set at 4. The volume level while profiling is WAY louder than playing a guitar though it, to the point that I'm seriously concerned that it could damage the small 10inch speaker if I try to profile at a higher amp volume setting.

Also, at 4, it should probably be a clean profile, whereas the KPA tells me a distorted profile has been captured.

So is it normal for the profiling signal to really whack the amp hard? There doesn't seem any way to bring this signal down.

Thanks from Ottawa Canada

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Quote from Gizmo

that does nothing for the level of the profiling signal

Are you shure?
Did you try?
What position is your Distortion Sense?

of course the Profiling tones are not what your guitar would produce, pretty harsh tones for sure. haha. I am willing to guess the dynamics of the signal soft then loud is what helps capture the dynamics of the amp. When profiling, you can select Clean or distortion, once you profile it in that setting, I don't believe you can change it after. So going through the steps, you should be able to designate what it is. And yeah, if you think its getting too loud, then back off, probably don't want to profile at extreme volume levels, more then your amp and speaker can take.

Changing distortion sense has nothing to do with the levels of the profiling signals.

If you are of the opinion that you're about to profile a clean amp you can do the configuration in the KPA accordingly.
If the profiler detects distortion though (sometimes distortion is not so obvious as we all know) it will continue profiling like it's a distorted amp, resulting in louder test signals.

It's all in the manual.

Concerning the loudness of the Princeton and the fear of damage:
AFAIK not one amp has been damaged yet.
If you can turn your amp to 10 (or 11 ) and like that sound you should be able to make a profile of it.

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Quote from ckemper

The Distortion Sense will affect the Direct out, too.
You should set it to zero, when you run your reference amp for profiling.

Yes, profiling an old none master volumen amp is very loud.

I have profiled a lot of then - and one amp was blown.

I asked for a shorter time for phase 3 from the ufo sounds - but got no answer yet.

Quote from fretboardminer

[Blocked Image: http://www.audiosemantics.de/FORUMS/his-masters-voice.png]

I stand corrected. Thanks for the HMV!
Fretboardminer, you always find the right pics to bring your points home. Chapeau!

This is one thing I do not like about the Kemper. It's not just the risk of blowing a speaker, it's that the amp will sound different with the hotter level going into it than it would with guitar going direct into it. My solution has been to use a little passive attenuator called 'The Pot' which allows you to dial down the volume and the tone in the same way as you do with your volume and tone pots on the guitar. I set it to about two thirds volume attenuation and one third tone reduction and that gives me the same sound as I get with my guitar going direct into the amp. The profiling signals are still loud but my speaker hasn't blown after numerous profiling sessions.

Quote from Gizmo

Hope it wasn't a vintage!!!
Not going to risk it.

Yes, it was the Fender Deluxe from 1952 - the C's in the power supply section.

(The 3 big ones on the left)
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It looks now like this:
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My Blankenship Fat Boy Supreme With Sour Cream fried a resistor in the output stage, which also took out the 6L6's, when I attempted to profile it. I never knew if there was a defect prior to the profiling attempt, but I was afraid to try it again after Roy Blankenship fixed it. I since have sold the amp.

Since Firmware 1.5 we can take down the level of the Direct Out.
Does anybody know if this is also possible in Profiling Mode?

I tried and could not reduce direct volume during profiling.

Hm - that's strange, isn't it? I mean, every volume pedal patched in between could do the same but why is it not possible to reduce the level simply inside the KPA?