OS14 / Profiling 2.0 Public Beta Discussion

    Hey Mk1 owners... if your Mk1 was good enough yesterday it will be good enough today and tomorrow. The Mk2 is not going to make you famous or a better player, or even make you sound better. Besides, A.I. is going to make all this redundant in about 5 years anyway.

    Larry Mar @ Lonegun Studios. Neither one famous yet.

    Quote from Matzede

    What do you think about the resultus of the Null test of Leo Gibson?

    As expected 2.0 is better than 1.0 but it's still pretty far away from NAM (and Tonex). Had higher hopes to be honest...interestingly I even prefered the sound of the Kemper with Mk1 on identical captures packs nonetheless 🤷🏻‍♂️

    I ignore them entirely. It’s pointless - and I doubt anyone who actually knows the science would say those findings have meaning in real-world usage.

    Their value - if any exists - is on a spec sheet and in Internet forums to argue.

    Like reading by most detailed map or walking a 3d environment — and saying you ‘know’ the actual area. To say so is utter fantasy.

    Quote from timo

    You need to update Rig Manager to the current Beta. Do this by enabling „beta versions“ in the preferences dialog and then „check for updates“.

    Turns out my Kemper isn't happy with my USB hub anymore, even though it was the only device connected to it.

    Anyways, problem solved :)

    Quote from Ruefus

    Their value - if any exists - is on a spec sheet and in Internet forums to argue.

    The final instance are my ears and until now I will stay at KPA. They also do not tell us their monitoring devices. I think my monitors RME Fireface UCX + KSD C-88 +B88 (IK ARC4 Studio as Room EQ) and/or Ritter GBA 280 + 2x12 Kemper Cone Cab do not hide the truth.

    I checked also the other competitors (except Fractal).

    zuviel thread macht blead

    All the people saying the final instance are the ears...are right. Listen to all available demos and the Leo Gibson video. In the latter case no one can tell me they don't hear clearly that the NAM device is closer to the real Soldano. No one can tell me this is because of utube compression or subtle.

    And in ALL demos I heard until now, 2.0 has introduced a harshness that I never heard of the Kemper (and that is not there on the amp). Not brightness or cut of the real amp, but like some harshness gets in the front, because of some high mids / highs are spikey and others are too much reduced. Not balanced at all. I think that "lifted layer thing" is the effect of less compression, less perceived gain, less mids in certain areas.

    Listen with fresh ears, close your eyes or let someone else in your family listen. I can clearly hear some unpleasant harshness.

    I’m only mentioning it, not trying to start any drama. Maybe there is some bug filtering too much mids or something? If others hear it differently, that’s perfectly fine. I just find it hard to imagine


    • Official Post
    Quote from tedtan

    You couldn’t tell the difference between sample rates in and of themselves, but sometimes there are other tells, like differences in aliasing when gain is applied or certain converters sound different at different sample rates for some reason. But those are differences i other things, not in the sample rates themselves (44.1k fully captures the range of human hearing (plus a little extra)), and can be worked around via oversampling when adding gain.

    So this is not the topic of this thread, but parts of it.

    Many people were told that a higher sampling rate will tame aliasing, which is true. But on an expert level it is known that taming starts at 4x the sample rate at least. Going from 44 to 48 or 96 kHz has only decent effects on aliasing, depending in the situation. If you have to have your DAW running at 96 kHz (paying a high price) to make your plug-ins better, then you might hear and tame poor coding in your plug-ins.

    Same applies to converters. They run sampling rates in the MHz region at any time for many good reasons, and they simply don't give a * about the incoming sampling rate :)

    Fun aspect: while many believe in null tests as the scientific measurement for everything, the community is kindly forgiving aliasing effects in digital guitar amps.

    CK

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    blind test...

    Quote from ckemper

    Fun aspect: while many believe in null tests as the scientific measurement for everything, the community is kindly forgiving aliasing effects in digital guitar amps.


    Probably because, while it's easier to measure, aliasing is harder to discern in the output signal. As I'm sure you know, it's often audible, but mixed in with the rest of the signal. An oversampling control to A/B different amounts of oversampling is usually required to hear the aliasing outside of an aliasing test. Line6 bumped up their oversampling a while back and it made a noticeable difference.

    16X oversampling from 44.1 is good enough in almost all circumstances, but the fact is it's not as good as 16X oversampling from 48 :).

    It's your company, but I will warn you that you are risking getting banned from this forum for discussing this.:).

    Quote from ckemper

    Set the Return Level to some level and start profiling. When there is an error message (e.g.) too much volume, reduce the Return Level by 8 dB or so and try again.

    Once the Profile has finished successfully, the Return Level is set automatically, but the level still could have been a bit off the ballpark initially. Simply take the Profile a second time, it will happen now with nearly unchanged Return Level.

    CK

    I have been doing this with v1 profiling. When you do another profile, you see the level from the prev. Or you can start the profile and abort in the middle and its kind of close. v2 is fast enough that i just let it finish.

    Quote from taylorphototexas

    ...I don't understand what all of the hullaballoo is about.

    Well, that is the nature of forum discussions. People talk things through, go back and forth...and different ideas come up. Sometimes you discover bugs, sometimes you’re completely wrong and someone corrects you. Along the way, you uncover new things - and sometimes rediscover old things. Some paths lead nowhere (for a long time in some threads), but others end up helping everyone and can even make the product better...the old and the new units:)

    I don't believe null tests are relevant for Profiler 2.0 and liquid profiling. After the profiling is done, you have so many tone and EQ options that the Null Test stops making sense, since we are looking for a tone faithful to the amp but with other tweakability and tone possibilities.

    Quote from DonPetersen

    The tone a listener hears is obviously important—very important—but focusing only on that is an oversimplification that ignores other key elements.

    The tone and responsiveness the artist hears and feels has a significant impact on their performance. At a certain level of musicianship, the more an instrument—and the amp as an extension of that instrument—feels alive and responsive, the more it interacts with the player on an almost unconscious level.

    That interaction can directly influence phrasing, dynamics, and overall feel. In some cases, it can even elevate a performance from “very good” to truly outstanding.

    And interestingly, this can happen even when the audible tone (in terms of frequency response) is essentially the same.

    Thanks for posting this Don. Everyone who ever makes the "you can't hear the difference in a mix" argument should read this twice to get a feel for what making music really is about. Thanks again.

    Kemper PowerRack |Kemper Stage| Rivera 4x12 V30 cab | Yamaha DXR10 pair | UA Apollo Twin Duo | Adam A7X | Cubase DAW
    Fender Telecaster 62 re-issue chambered mahogany | Kramer! (1988 or so...) | Gibson Les Paul R7 | Fender Stratocaster HBS-1 Classic Relic Custom Shop | LTD EC-1000 Evertune | 1988 Desert Yellow JEM

    Ok listen guys. This will be my Last post here Until I get My Gtrs and my Amp/Cab into an MK2 cause I see clearly it is not fair to judge Without My personal experience.

    I just want to explain a fact:

    my wife sow me a bit alienated in the last days and tha's how I've explaied her the whole story in our real life:

    (we both have samsung moblies, mine was about 200 bucks 6 years ago, she has a 1300 bucks bought last year)

    ''Darling it's like the pictures we had last summer, Your pics ARE better, more resolution, more birghtness, more colorfull, I don't have to spend a second choosing wich one is better for my destop screensaver. but we both know my pics are more realistic.

    Your pic are ready to share on Socials, I will probably add filters to adjust mine before I share to the world, (in case I want to do it)''

    That's how I see the new 2.0 Profiling, it adds somthing we've not used to, it looks like there's less compression, sounds bright, brighter and less compressed than the Real amp, it seems a More Natural Sound if You play it, more Responive to touch, .. even if probably less close to the actual Rig profiled. But if it Sounds Good, it IS Good!

    Quote from Sollazzon

    ...That's how I see the new 2.0 Profiling, it adds somthing we've not used to, it looks like there's less compression, sounds bright, brighter and less compressed than the Real amp, it seems a More Natural Sound if You play it, more Responive to touch, .. even if probably less close to the actual Rig profiled. But if it Sounds Good, it IS Good!

    It is a very interesting point, that in multiple videos the 2.0 profiles seems to be not only less compressed than classic profiles, but even noticeable less compressed than the real amp.

    Others noticed less gain or more dynamic than real amp rig. I think this is the same effect. Maybe because some mids are reduced and shifted in 2.0 compared to the real amp.

    Less compression can feel more responsive, but also more stiff and less forgiving. As if some power tube saturation is missing in 2.0!?

    Edited 2 times, last by Ibot39 (March 8, 2026 at 10:49 PM).