Kemper Profiler MK 2

the swede said:
Such passion!

I hate when there’s a whining party in this forum and I completely miss it to step in and realize that I didn’t miss anything that concerns me at all…. Typical me!

I’ll just let you all continue, and go back to my pondering thinking about changing the knobs on a guitar pedal because I don’t like the color of the knobs… yes… it’s a big problem!
Click to expand...
THE SWEDE !!!!!!
No you got here just in time
 
Restorative circle time
Season 4 Hug GIF by NETFLIX
 
OneEng said:
The argument being made frequently in this forum is that if it isn't exact, it can't sound good. I disagree.
Click to expand...

This is a straw man argument.

That argument is not made frequently on this forum.

Both Kemper and other products can sound good with "low" accuracy. Off course! You may love a product or a single profile/capture without it being accurate compared to the source. That's fine. Or actually, that's really cool! Please do enjoy it. But the whole raison d'être of Kemper, Tonex, NAM and other products creating profiles/captures is to make a digital copy/recreation as close to the source as possible. If they are far from achieving that goal, it should be pointed out. That is what is done frequently on this forum.

That being said, I'd love Kemper to deliver on the promise of the new profiling tech to be "the most precise amp recreation ever achieved". Competition is good and it will put increased pressure on IK to improve Tonex (of which I am a user).
 
the swede said:
[…] thinking about changing the knobs on a guitar pedal because I don’t like the color of the knobs… yes… it’s a big problem!
Click to expand...
A very important decision, indeed. When choosing new knobs, you should definitely make sure that they are clearly visible even in direct sunlight. Otherwise you'll invoke the wrath of the gigging musician, and you don't want that.
;)
 
Deadpan said:
Unless it is a perfect null the measurement is meaningless IMO.

And even if it is perfect there's more in details that are not told.

Chatgpt cheat

Null tests can be a powerful tool for measuring how closely a guitar amp modeler replicates a reference signal (often a real amp or another digital model). However, while null tests are very sensitive to differences between signals, they do not account for several critical variables—especially in the context of guitar amp modeling. Here’s what they miss:


---

🎛️ 1. Perceptual and Psychoacoustic Factors

Human hearing is nonlinear and context-dependent.

Null tests may detect tiny differences that are inaudible or irrelevant in real-world use.

Conversely, perceptually important differences (like dynamic feel or stereo image) might not show up strongly in a null test.



---

⚡ 2. Dynamic Response / Touch Sensitivity

How the amp responds to input dynamics (picking strength, volume knob, etc.) is crucial for feel.

Null tests are typically done with static signals (e.g., reamped DI tracks), not varying player input in real time.

This ignores player interaction, which is central to the "feel" of a tube amp.



---

🧪 3. Nonlinear Behavior Under Stress

Real amps behave differently at high gain or volume, often producing complex harmonic content.

Null tests on simple signals might not push the model hard enough to expose nonlinear artifacts or weaknesses.



---

🎚️ 4. Cab and Mic Emulation Differences

Amp modelers often include cabinet, mic, and room simulations.

If these aren’t matched exactly between the reference and modeler, the null test results will be skewed.



---

📏 5. Latency and Phase Differences

Even slight latency or phase shifts can prevent perfect cancellation in a null test, even if the tonal match is perceptually close.

Some amp modelers introduce small delays due to internal processing that cause null tests to show discrepancies.



---

🔊 6. Output Impedance / Interaction with Load

Real amps interact with speaker loads in complex ways (especially tube amps).

Null tests using DI signals don’t account for impedance-dependent behavior or reactive load interaction.



---

🎼 7. Time-Variant Effects

Real tube amps can have drift, sag, or hysteresis effects that evolve over time.

Modelers may or may not reproduce this—and null tests on short segments may miss it.



---

🎵 8. Tone Stack Behavior

The response of the EQ (bass, mid, treble) controls in analog circuits is complex and interactive.

A null test at one setting won’t reflect how accurately the modeler tracks across the range of controls.



---

✅ What Null Tests Are Good For:

Verifying static accuracy at a fixed input level and tone setting.

Detecting phase, EQ, and harmonic mismatches in a controlled scenario.

Comparing two digital units to see how closely one mimics another at a technical level.



---

Bottom Line: Null tests can reveal whether two signals are digitally identical or very close, but they don’t measure everything that makes a guitar amp "feel" or "sound" right—especially under real playing conditions.
Click to expand...
lol, the things Null Tests are good at are the things that will determine how accurate the signal is being modified. The AI just basically told you a null test can’t account for human perception/manipulation, which is the point.
 
I will state if the K2 sounds better than the competition as they promise , has low latency and aliasing I will buy a player as my grab and go over the NDSP Nano
As others said I am rooting for them , I would love to see them regain the lead and it can be done but not with hype , they made the claim
Now ball is in their court to back it up
It will either be a great comeback story or a big disappointment. Will have to see
 
TheTrueZoltan! said:
A very important decision, indeed. When choosing new knobs, you should definitely make sure that they are clearly visible even in direct sunlight. Otherwise you'll invoke the wrath of the gigging musician, and you don't want that.
;)
Click to expand...
I will! Even though the pedal won’t ever see any sunlight… or a real musician for that matter. :bag
 
GTR37 said:
I will state if the K2 sounds better than the competition as they promise , has low latency and aliasing I will buy a player as my grab and go over the NDSP Nano
As others said I am rooting for them , I would love to see them regain the lead and it can be done but not with hype , they made the claim
Now ball is in their court to back it up
It will either be a great comeback story or a big disappointment. Will have to see
Click to expand...
I think there will be people that are entrenched in the ecosystem, and will play it regardless, even if it’s just incremental gains.
 
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