Using a few bands of EQ doesn't really give you a whole lot of control, there are tools to create a IR by hand.
When you design the frequency curve in Goldwave, you do it using points. You can add/subtract points. I have not hit a limit on the number of points yet. For testing purposes I added 75 points and got tired of clicking 
So you can draw any crazy curve you want.
The point was to show how easy it can be. There are probably lots of tools out there as you suggested. This is just one.
this sound can also be achieved by the 'Character' parameter in the CABINET module:
I read the CHARACTER effect as increasing or smoothing peaks in the frequency response. You still need a response to begin with. That is where this post comes in. Creating a custom IR (freq resp).
The example I posted above was a from a graph I found on the web of a V30 speaker. I think the graph was created from a speaker in air (not in a cabinet) because the low end response is very low. There are no large peaks or dips in the response. In my mind, large peaks and dips (errors in the response) would be from cabinet resonances and microphone placement issues. That is why I wanted to try this method out. To get the desired freq response without the hassle of fighting mic positioning, cab resonance, EQ coloring, etc.
It is an attempt to get a more realistic response of what you would hear at the cabinet if the cabinet was very flat and you had perfect microphones , EQ, and placement. You could add more points to the curve to get resonances and suck outs if you want. I have not tried, because I am trying to do the opposite of that.
The other point is to get an IR that is EQ'd exactly how YOU would want it. Everyone has different tastes. And the Kemper only has 4 possible FX slots after the amp. So, tweaking the IR could free up a slot after the amp that would possibly be taken up by an EQ FX. I hear people on the forum always asking for more slots. This is one way you could free up a slot. But it will take some work and is not super easy. But it is incredibly fun for some of us.
I hear a lot of great tones on the Rig Exchange that are ruined by poor mic placements. There are large frequency suckouts here and there that make it sound like it is in a tunnel. This totally ruins the sound for me.
So you have three options:
- Adjust the Character as mentioned. This cant fix large problems. It can't add in the missing frequencies without modifying the overall response. So it is great for small changes, but not large suckouts/peaks.
- Use a different CAB/IR. Easiest fix. But every IR has its own sound. So you have to sort thru a lot to get the perfect tone.
- Build your own IR. You can use the method I outlined for greater control. Or use a tone matching program to basically do the same thing using some prerecorded material to create the freq resp for you.
I am not an expert in this field. I am just a guy who likes to spin the knobs and create some fun new things. And to me the Kemper is the most amazing device ever created for guitar. It allows us to have complete control of all aspects of a profile.
This post is just for crazy knob tweakers like myself. To me, the Kemper is a science lab that I play in all day long creating crazy inventions.
Disclaimer:
I am a big fan of Goldwave. A stand alone audio editor that has been around for years. Recently I started using an effect called the Spectrum Filter. This effect uses FFT and allows you to draw the frequency response you would like. Goldwave can usually be used in demo mode because the author is a god. I use it everyday for so many things. I am not affiliated in anyway to the company/author. These methods can be used in any audio editor.
LETS DO IT:
Step 1 is to get a base Impulse audio file. You can make one in Goldwave by manually editing a single sample in a file or use something you already have (made or from web, etc). In theory a single sample is a very short square wave signal. Since the rise of the wave is instant, it will create/include all of the odd harmonics after it. So all of the audio frequency spectrum will be present in this tiny pulse.
Step 2 is to open the Spectrum Filter in Goldwave. From this dialog you can add/remove points on a frequency plot to create the response you are going for. Once you apply this effect to the Impulse file you should get a response very close to the curve you drew. Looking at the resulting waveform you can see it is no longer a square wave.
Step 3 is to apply some gain to the signal to get the most volume out of the final IR. In Goldwave you can choose the Maximize Volume effect. I usually set the new volume to be -3dB. This gets me close to the normal Kemper volumes and makes it easier when comparing IR/CAB so the volume is not jumping around.
Step 4 is to save the file. You can select many different formats in the dialog. IRs are simply WAV files. I use the standard CD quality values of 44.1 kHz sample rate, mono, 16 bit.
Step 5 How you get this into the Kemper is up to you. I have a folder in Rig Manager that I drag them into so I can sample them and rebuild then over and over the get the right response I am looking for.
THE END
As of late, I have been focusing on making DI profiles and then designing these custom IRs to fit. The results have been pretty good.
I recently added a profile to the exchange of just a Metal Zone pedal and one of these IRs. No amp, speakers, or microphones we hurt in the making of this profile. Just pedal and IR. And it came out pretty cool. Way better than I imagined it could.
IMPULSE FILE
I could not attach a WAV file here. So I do not have an easy button for you. Generically, common IRs are based on 1024 or 2048 samples. Using a sample rate of 44.1 kHz means we need approx 46mS of audio. You will want some dead time before the pulse, so I used 50Ms. I created the IR pulse at around .45mS.
🙂 Is Amazon a well known Music Company?
I think the bad sets I ordered were from Amazon also. We live an learn 
I've just discovered there are some fakes.
Very interesting video. As I stated in this discussion I tried some Slinkys and they were garbage. They were maybe counterfeit?
I did not see in the video where he stated any proof they were counterfeit. I only saw differences between sets. What did I miss?
On the Helix there is a dynamic routing option. So you can go between two entire setups generically. I do not recall how smooth this was as I never intended to use it.
The Kemper WAH has some form of boost listed. Not sure if that would work but seems to be the thing you are looking for. However the WAH could color the sound, so it may not be the best option.
Since I am never quite happy with the dynamics of my Kemper, I find myself adding Direct Mix more and more.
Having a dedicated 3 band EQ for the Direct Mix would help a lot. Direct adds a lot of mid range that would be nice to dial out.
Bass, Mid, Treble would be fine for my uses.
Of course full parallel path options could fix this issue and a bunch of others
Priced a custom shop Jackson, 2 years wait and $7000 cad + 15% sales tax ! Found this beauty on reverb and it will certainly pass as my dream guitar
Awesome guitar but you posted your picture backwards. You need to use MIRROR image to rotate it to the correct view 
What is funny is, I came here today to praise RM for being so amazing. To me it is by far the best interface for editing sounds. And that comes from a long time Line 6 fan/user. RM blows Helix HX edit away. It is not even close.
Disclaimer: I do not use my STAGE to play out, so I have not messed with that aspect. I also would never use my phone to edit.
But having a "cloud" download sounds like a decent feature. It is just complicated by how locked down Apple phones are. You would not need a cloud version for Android, you could just have LOCAL LIBRARY copies stored. So I view that as an Apple problem not a Kemper problem. Kemper would have to create a web server to store 5,000 terabytes of profiles and write a bunch of code just because Apple phones cant store files. That is not a feasible thing to add to a unit this old. It would not be worth the engineering and support time/money.
Lately I have been wishing for a Studio EQ in the AMP section for more control. Pre and Post if possible. With an option to bypass them both.
I cant enter an email. No characters show up in the text box.
They sound nice from the sound clips though 
I do not have a remote, but the remote probably uses Power Over Ethernet (POE). From my understanding most if not all Ethernet cables should support POE.
Practicing with headphones at home solves a lot of issues. Beginning with the wife - she is the hardest to transpose.
I agree 100% except for me:
1) I do not like the sound of guitar in headphones. The attack sounds like a 'thonk' due to the small cab resonance.
2) I have dizziness issues so I cant wear headphones 95% of the time. The pressure on my ears starts me spinning.
3) Unless my wife is working, she likes the sound of my wheedlie wheedlie noodling.
4) I do not play super loud for dizziness reasons.
5) I do not play loud because I have blown monitor speakers in the past. They are not rated for constant high freq energy like a fizzy high gain sound.
As usual, the normal solutions do not work for me. I am what is called a statistical outlier 
Wearing heaphones is the dream though 
People should stop looking at it like a commitment to one thing or the other...
People drop $3500 for a head and another $1000 for a cab and dont even blink to get another amp that has a different sound.
Meanwhile the mild mannered Kemper at $1700 does almost all the amps pretty damn good. And its not even half the cost of another amp.
Get Kemper. Get Cortex. Get a Marshall. Drive the Marshall with the Kemper. etc etc etc
More is always better 
Unless you are playing loud, or using headphones, you may be hearing the physical normal-pitch sound of the strings.
Confirmed. I have no idea how my guitar is anywhere near loud enough to hear, but it is.
The issue I have is I cant hear high freqs very well anymore so I cant locate sounds. Between the deafness and tinnitus I am lost.
It sounded like it was coming right out of the speaker that I had my head buried in.
Thanks guys 
When I click thru profiles on Rig Exchange, I sometimes find a rig with a transpose stomp. When I use the transpose, it acts like a harmonizer. It plays the transposed signal and the original signal. Which completely defeats the purpose of transposing.
1) Anything that would help profiling be easier and better.
- VU meter.
- Spectrum Analyzer
- Graphic EQ
2) Dual Mono/Stereo Cabs after AMP or Dual paths after amp or Just dual amps and paths. I would be happy with any. Two cabs in series can sometimes fill out missing freqs. Two cabs in stereo can really help recordings.
3) Any additional USB audio stuff would be welcome.
4A) I still feel like my Kemper could use more dynamic range. Anything there would be great. Currently I am focusing on reducing low end on profiles then bringing it back in with EQ. Since the high freqs are what shine when digging in and are at a lower volume, they tend to compress less.
4B) If there is some compression at the input, the option to remove it would be great.
I only play at home for fun. So Stage only ever gets used. My Laney 50 watt head is usually in the trunk of my car during the winter so my back end doesn't come around 
Welcome!
I can imagine for a few tasks, manual method may be better. I do all profiling manually (Have not seen how to do it in RM?).
But, I would rather not own the Kemper than have to manually edit the 37 lines of description when making a profile. If you used the Kemper it would take you 20 minutes to do one profile.
I also have folders in the local library for IRs/Cabs, effects, amps based on style, specific profiles I used for each song (Gtr, Bass, Voc), etc, etc, etc.
I would never even look at a device that did not have a fully capable PC connection. So I guess I am lucky I got in once RM was fleshed out 
I would never attempt to do anything on a complicated piece of gear without a mouse, keyboard, and large monitor.
In other words, Rig Manager is always the way to go.
