Nice tight rhythm! Love the machine gun fire. I would have never guessed it was a JTM. Just goes to show the wide range that an amp and player can cover.
Posts by lbieber
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What I find humorous is that prior to this, a number of us were vocal in asking for improved Profiling.
Now that we’re getting it, a number of us are vocal in saying it’s unnecessary.
That’s funny.
Why is that funny? It is completely expected, at least by me. It would be ironic, hypocritical(maybe funny?) if the same individuals were vocalizing both.
I am in the unnecessary camp. I personally see no significant benefit in 'improved' profiling and will stay with my Toaster for the foreseeable future. One of the major, unexpected side effects of the Kemper is that it removed GAS. I think this is true for many others as well. The Mk2 seems to be turning the GAS back on for many. I will continue to focus on playing rather than diverting to the GAS impulse.
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lbieber I said: back to topic please.
I only saw your command after I posted
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... Lets just say that you use an analog filter to TOTALLY trim off anything over 20Khz so the higher frequencies aren't even being sampled. FYI, any 2nd year EE could do this easily.
I don't particularly enjoy correcting this comment, but since you failed to fully understand the course material...
Please elaborate on the design of the analog filter that can TOTALLY trim off anything over 20kHz. That filter, a brick wall, only theoretically exists and cannot be implemented unless you have infinite time. So no, what you propose can't be done by you, any 2nd year EE, or anyone else for that matter.As others have alluded to, any non-linear process will create sum and difference frequencies. These cannot simple be handled by a high sample rate and will alias. Your assertion regarding Nyquist is true in very limited cases, most of which don't occur in real world audio.
This is a good example of how falsehoods get propagated. Dunning-Kruger is real.
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I'm trying to be polite
- I think we are all taking about aliasing that would be a problem to what we do (making music, recording things). Let's not get super academic about it please.I simply interpreted your words as they were written. It would have been impolite of me to reinterpret them to mean something else.
There is a lot of grey area in interpreting what is a problem in this case. For the record, the level of aliasing in the Kemper is not an issue for me. Thanks for clarifying as the original wording was potentially misleading. Hindsight is 20/20 but something like "the Kemper team carefully analyzed and designed the system to minimize all sampling artifacts" would have been a clear statement on this topic. If it is indeed accurate. -
Please provide some evidence for your statement. You seem to believe that "From what we know there is no aliasing" is a problem. Why? Do you figure the Kemper engineers don't understand Aliasing and the Nyquist frequency (and sample rate)?
I believe that there is PLENTY of supposed proof of aliasing, and none of it holds up to scrutiny. There are certainly artifacts that can be created by DSP, but I think that MANY people cry "Aliasing" anytime they hear anything they think they don't like.
That statement, as it is written, is problematic. Aliasing exists to some extent in every sampled system. The designer can take steps to minimize it. Can it be completely addressed so that there is zero aliasing? At best, it can be improved, but never completely removed. There are always artifacts related to digital sampling. Good design tries to minimize the effects. So yes, 'no aliasing' is not an accurate statement. And never on our radar requires at least some further clarification.
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What we still haven’t seen is evidence this ‘issue’ exists.
Lots of hand wringing, gnashing of teeth, jaw-flapping and tense words…..but no evidence beyond second-hand claims (at best) that this was ‘known’.
I’m happy, ready and waiting to be put in my place.
So far we’ve argued semantics more than anything.
I don't know where your statement 'hand wringing, gnashing of teeth, jaw-flapping and tense words' comes from or what you are trying to apply it to. My comment regarding the design of a sampled system is fully accurate.
... I doubt that Team KPA did not check this during the device design and testing process.
I would have probably agreed with you until G-String made his 'from what we know' and not on our radar statements. Either those statements are incorrect or Kemper didn't address the issue. So, let's see if the statement is changed.
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Please post a link to the video you're talking about. And then we all can see on what basis a person on youtube claims that the Profiler (and every amp sim apparrently) issues audible aliasing.
What I've wrote is "From what we know there is no aliasing." - Don't change that and claim that I've said that there is no aliasing. We're just curious about where this is coming from. Because in all the years, it was never on our radar.
The statement "From what we know there is no aliasing.", raises BIG RED flags!!! And 'it was never on our radar' is even BIGGER and more RED!!! Aliasing, Nyquist rate, sum and difference frequencies, are among the first aspects to address in any sampled system. These concepts are basic and fundamental to any digital signal processing engineer. Perhaps the way you worded these statements is incorrect?
On a side note to many in this forum, there have been repeated claims that somehow German engineering is magically better than 'other' engineering. This is complete nonsense and is nothing more than a superstitious claim with zero foundation in reality. Making the claim is a display of illogical thinking. There are only competent engineers and less than competent engineers. I will firmly state that any engineer that designed a sampled system without understanding and addressing aliasing, Nyquist, etc... is not a competent engineer.
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I don’t own a Player, but every German assembled product is built to be a tank, as to the video 🤷seems to have an agenda. Looks like a decent quality PCB to me
Your simply buying into a stereotype by lumping all German products into the tank category. Simply not true.
Just my take, but the board looks pretty decent to me aside from the fragile nature of the USB connectors that not everyone uses.
As one engineer to another, we know that the look of the board reveals little to nothing about it's quality. There are many details that could make a good looking board bad. Not saying this is the case here, but drawing conclusions by looking is silly.
It would be preferable to avoid misleading or unverified statements.
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It seems there is some confusion between failure rate and life expectancy. These are not the same thing. Kemper could potentially provide the failure rate or MTBF if they were so inclined. I doubt that information will ever be published, but I've been wrong before.
Lifetime indicates the expected number of normal operating hours before the wearout phase of the product. Kemper has a warranty based on the MTBF, I would assume, and also offers repairs outside the warranty period at the customer's expense. I have heard some say Kemper performed repairs for free outside the warrany period. To the OP - what are you actually concerned about?FYI, my powered head had one hardware failure. It stopped being recognized by the USB master. I returned it to a Kemper repair center which happens to be in my state, Colorado. It was done in a timely manner under warranty and I have had no issues since. I have no idea about the details of what was actually repaired as they never responded to my questions. I added a POE box which allowed me to avoid cycling the RJ45 connection.
I have also had the unit freeze up 3x on a gig over 4 years. Reboot solved the issue each time. A bit inconvenient and clearly not ideal, but these were bar gigs where it's really not a big deal to me.
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There are some mighty acoustic pickers out there. Grassers in particular. It just the picker and a string...nowhere to hide. It's why I always chuckle when I hear guys say an amp/profile makes them play better. That's a delusion that some use to avoid improvement.
I like Billy's playing, but I like his attitude and thinking even more.
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Pretty much any guitar with a bar, a cranked Marshall, and flanger should get you very close. Nothing complex about getting those sounds.
That song is all about attitude and arrangement. Roger is one of the unsung greats. His attitude and originality are UNIQUE. As Finally said, cleverly arranged. That dude is a badass and he alone made that band rock. They were never the same without him. In my mind similar to what happened with Chicago and Terry Kath. Both unsung guitarists that were completely unique. Neither got the credit they deserve(d).
Oh and good luck singing it or finding a singer that can. I tend to dislike Heart covers due to the singing and guitar playing.
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How do you achieve this ? You read the FRFR's specs and get rid of frequencies (with highcut) that go to the tweeter ?
It is useful to know the spec of the FRFR, but this still leaves alot of uncertainty from a numerical POV. I simply use a combination of hi cut, definition, presence, treble, and EQ while listening. It is easy to hear the tweeter's influence on the sound. As an experiement, I have added a switch to connect/disconnect the tweeter and listen to the difference. It makes the influence of the tweeter undeniably obvious.
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At 3"00/4"00, he says he dislikes all FRFR solutions for monitoring but likes Speaker designed for modelers with coaxials speakers....
Some tracks to explore
I've posted on this quite a few times. The 'video guy' makes a distinction between a PA cab and a vocal wedge. That is mostly a distinction without a difference. The coaxial idea is nonsense, IMO. IME, the problem is the crossover frequency and how much content is directed to the tweeter. Historically, we are used to guitar sound from a guitar cabinet, i.e. no tweeter present. Why would we expect a full range cabinet to sound as good, if content is directed to the tweeter? I have gotten very good results by removing the tweeter content coming from the Kemper. This is also true with a traditional amp into a PA, especially if the mic and placement are not ideal . Tweeter content ruins guitar tone. The Kemper offers many ways to resolve this - some of which have already been mentioned.
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I just watched the string fuel video. Horrible performance by the 'actor' and the product seems silly. The majority of the gunk that builds up on the strings is located on the underside of the string between the string and fretboard. How could dragging a sponge across the topside be effective? The idea of applying oil to a wound string seems problematic and not much different than applying the natural oil from our clean fingers. As mentioned, wash your hands.
I know quite a few use 'oily' products or baby powder. I have seen Jeff Beck and Ronnie Wood using powder. For me, powder makes a big mess and provides very little benefit.
I don't understand why the finger squeaks are such a 'big' topic? For me, it is easily improved through good technique to the point of not being an issue. Sure, certain profiles/EQ can highlight it, but I would argue those are bad settings. Steel string acoustic guitars are the worst IME, and are a good platform to develop anti-squeak technique. Some squeak is unavoidable especially with round wounds.
Guitar setup matters to me nearly as much as technique. It all matters. Nut slot depth, string height at the 12th, neck relief, level frets and intonation. A well set up guitar can make or break a situation. My acoustics are all set perfectly. I'm not there with my electrics yet, but I will soon be. I'm dragging my feet on the nut filing front.
I have never played a guitar where the setup had any influence on squeak. Yes, setup matters for playability which is what you are referring to? Interesting that you have acoustics that are setup perfectly. I don't believe I have ever played an acoustic or any other guitar with a perfect setup. There is no acoustic guitar, or any guitar for that matter, that is perfectly intonated in all keys. Such a thing does not exist especially considering Western tuning. We are subject to that problem. The player must play the instrument so that it sounds in tune. I have had many other guitarist play one of my guitars and make the tuning sounding horrible. Yet it is in tune when they hand it back to me.
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I've tried the acoustic profiles on RE. I one or two that I thought were ok, but only ok. Bought Bert's pack and found some very nice profiles that work well with my acoustics, most of which have K&K sensors.
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I have had similar experiences with and without the Kemper in the chain. I have had speakers that exhibited the behavior you describe. Many ported speakers have an odd bass response. But it sounds like you have tried different speakers. Next, I would suspect the room as every room has resonant frequencies. Have you experimented with different rooms? I would guess it is related to those two things.
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Lot's of US people who don't see US TV as well. Have no idea what a Bledsoe or a Ryan are and not a believer in the first coming or any coming fairytale.
I thought the subject was Kemper and US tariffs...time will tell
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Definitely not clickbait. Maybe you meant to say trolling?
A reading of the executive order indicates the tariffs are on imports from Canada, Mexico and China. Mexico tariffs were delayed today. Note that this is an initial order and that further tariffs on imports from additional countries are likely. Trump has expressed many times that the EU is taking advantage of the US. Another round of tariffs targetting EU countries may occur.
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I think it is better to offer the actual Rockman tone. Some good tones in that video but very few have what I consider to be the Rockman/Boston tone. Scholz used a Marshall and heavy EQ to arrive at his sound and then built the Rockman to replicate it. Undoing that EQ is simply unwinding the tone toward a Marshall sound. I am speaking mainly about the driven sounds. Clean is something different.
