Too much bass and low mids

Please help
I have been a Kemper user for 10 years. After 10 years, I decided to switch to QC. But I have a big problem with the tone for a live gig, I go directly to the desk.The volume of gigs is around 150 db, sometimes more
The first thing is that the signal from QC is very low compared to Kemper.So I have to increase the gain in the board in order to reach the volume needed for the gig… With Kemper, I don’t have to do that. The gain in the desk is usually zero, sometimes less.As soon as I increase the gain in the board, every tone gets a lot of bass and low and high freq. I know that you will all tell me that this is normal and that I should put EQ in front, behind, global EQ and other various things, to fix the EQ on to the amplifier itself or on captures…I would also accept that this is normal and that I can solve it with some global EQ, but this is really impossible to solve. I have been playing for 30 years, for the last 10 years I have been using Kemper, before that I only used amplifiers, I have never had this problem.I can’t accept that I need to set up so many EQ blocks to get something, some compromise that will be good in the mix. I don’t know if I’m doing something wrong. My setup is very simple, guitar input 1, QC output 1, desk…the volume wheel is at max.On the Kemper, if I wasn’t really satisfied with the EQ on the profile, I replace the cab or adjust the EQ a bit and the problem is solved. When I set the tone on the Kemper at a volume of 50db and when I try it directly in the desk at a volume of 150db, there is not too much bass, there is not too much low mids, there is not too much high. The tone is the same, small corrections are needed, which I can solve with global EQ. On QC, this is a nightmare.Everything I do on QC at a volume of 50 db is unusable at 150 db…That is why I would like to ask for help from someone from NEURAL DSP or one of the users who use QC for live gigs to know the solution to this problem, and that solution is not 15+ EQ blocks.
Is it not possible to create a tone by taking an amplifier model + cab or capture, set some effects and that it sounds good when I plug it directly into the board so that Sound Gay has no problem putting me in the mix and removing the bass and low mids from my tone . Let me mention that I downloaded the presets from KIKO, REBEA… and tried and they all have the same problem,too much bass,low mids… Maybe there is something wrong with my device, maybe I didn’t do something with the setup, but I checked everything so many times that I don’t know what to do anymore except to sell QC because I’m not thinking about the gig anymore, but only about how I’m going to fix my tone.

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I use stock Cab and i solve the proximity effects with the distance of the mic, that reduces(increasing distance) the basses and increases the higs. At 90% i use this way and not a hpf

The volume of your gigs is above 150dB??
So everyone in your audience leaves with perforated ear drums then? :rofl:


Yes, considering immediate and permanent hearing damage happens at around 120db, it sounds like the band better get a good lawyer on retainer (too late for an audiologist) :laughing:

I’d guess that the increase in top and bottom that you’re hearing as you increase input gain at the board is due to our old friend, the Fletcher-Munson effect. If not, the board must have an issue as the frequency response should remain flat at any gain setting.

Concerning low output from the QC, have you checked the output meters for the outputs feeding the board? If the signal appears low, you could increase gain from the output screen or bump up the output of each of your presets. Just check those meters to avoid digi clipping.


150 Db?
At first I thought it was a typo but you repeated it several times. At this volume no one in the audience (if there will be anyone left) will notice if there is too much of a certain frequency, there will be too much of everything…
Maybe there is something wrong with your QC but also with your Db measuring device.

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It’s the Fletcher-Munson effect, but whatever I tried, I couldn’t solve the problem… Thank you for your help

Thanks to everyone for the answer, but I didn’t ask to talk about 150 dB… I have too many years and gigs behind me and I don’t have to explain where, what, how and how much… I was just asking for help. I don’t know what volume you play when you have 1000+ people at a concert, but I’m never below 120db… That’s why I don’t want to talk more about db… If anyone knows how to solve this problem, if anyone knows where I can buy some good cabs and captures marshall i mesa , I would like them to tell me. But only those who use it at live gigs…Everything I’ve tried so far for QC, is ok at low volume.
Has anyone tried to make some captures at high volume, the volume that is needed for live gigs. When the tone is set like this and the capture is done, then there are certainly less problems because from the start there is a good tone at high volume. It seems to me that all this in QC made at some low volume and for needs and work in the studio.
Today I had a concert. On the QC global eq I cut everything below 135 Hz, -8 db 250 Hz and cut everything above 6K Hz…when I got to the stage and connected to the desk sound gay immediately did this -12 db everything below 250 Hz and -12 db 500 Hz ,-9 db above 6K Hz and then I had something that looks like a tone and that can be used in the mix
Has anyone tried Kiko’s presets…even at low power they are very bassy on my QC. The guitars are ESP Horizon 2 with SD and Gibson LP custom with Suhr Doug Aldrich. Did I set something wrong on the output? I only use output 1, but it says multi out on the presets.
The output level is at the clipping limit but does not exceed it
Can someone who uses QC live tell me how they set up their QC inputs and outputs or tell me which captures sound good in live gigs. I’m slowly losing the will, desire and patience for QC
Thank you

This section above (and the 150db) in your post in particular caught my attention. It may be that the sound you have become accustomed to and prefer is partly a result of the gain level you have been running the board at. The first effort I would make is to gain stage my preset to get it up to a level that does not require you to raise the gain level on the board. You can do this via the levels on any number of blocks or a combination of them, including the input and output blocks, levels on various effects such as compressors or overdrives, the amp block, etc…

Once you have the preset’s output level equivalent to what you used to see on the Kemper, and you no longer have to raise the gain on the board, then apply the usual EQ curves you prefer and see how you like the tone. As you know you can’t rely on other people’s presets to automagically sound correct on your gear, no matter how gifted they are at preset design. They designed that preset or capture using different equipment from you, probably playing at significantly lower volumes (Fletcher-Munson) and they are listening to their finished result with their own unique ears, perception, and aesthetic.

I tried that, there is a difference at low volume, but at gig volume that difference doesn’t mean much, I changed microphones, positions, levels… without any results
Thanks for your help

Thanks for the help, I’ll try to do it and set the volume of my presets close to Kemper… I only mentioned Kiko presets because they are available to everyone and I thought someone tried them, so if they are ok for others and they don’t have much bass at low volume, then something is wrong with my QC. In any case, thank you very much for your help and time

The QC is sending out the same signal, regardless of the level you amplify it, as will any modeller.
If it sounds different at high volume as opposed to low volume, it can only be our perception of relative frequencies at higher volumes. This is a well known principle. Any preset dialled in for home use will sound crap at stage volume.
It has always been the case that you need to set your sound and EQ at the volume that you are going to use it, and this goes for any modeller, or even for normal guitar amps. They all sound different at different volumes.

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I have seen, since I have my QC, that it DOES send less signal to the line outs than my Helix Rack. I don’t own a Kemper, so I can’t say for this.
This is not a problem though. My Helix sends like -6db and the QC sends around -10db, which I actually easily fixed adjusting the out block level on the QC, just because I did not want to touch the gain settings on my console :smiley:
But normally, the sound guy would just raise a bit the gain of the 2 channels where your QC enters, that is normal procedure to adapt input gain to whatever you are sent.
Let’s not talk about the 150db, more than that in Europe, you would be shut down if you throw 150db to the audience (ah s…t, I talked about the 150db :stuck_out_tongue: )


Have you got links to your music or live videos?
Would love to see what a band regularly playing at 150dB are like.

Do you have a solution for this problem… and who are you that I have to prove and show you something
Everything always boils down to brainstorming and lectures about other things… I have a specific question, if you don’t have a specific answer there is no need to participate in the communication because you were not asked this question

I am someone who has been working and playing in the live music industry for over 20 years now. I have worked in venues ranging from 50 to over 5000 capacity. I also studied electronics with music at university, with a large part of my course being about acoustics and sound.
I have worked with or seen Sunn O))), Motorhead, Dinosaur Jr and Mogwai among many others. However, those are widely regarded as some of the loudest bands ever or are the loudest that I have seen.

When I saw them, Sunn O))) caused structural damage to the venue, gave a security guard a nosebleed and gave someone in the production office a perforated eardrum.
Their gigs are reported to generally be around 125dB.

This wikipedia page also lists the loudest bands/concerts on record:

136dB is listed in various places as being “the threshold of pain”.
147dB is regarded as being the SPL required to burst a human eardrum, and bthanks to that, was used in the name of the Line6 HD147 amp head.

You don’t need to prove anything, because I know for absolute fact that you do not play gigs at 150dB.
If you did, there would be news articles about it, as you would hold a Guiness world record and likely be in significant debt due to covering a large amount of medical bills for deafened audience members.

I was merely intrigued about your band and fancied gving it a listen. :man_shrugging:
You already have several answers or bits of advice, so there is no need for me to add aything.


My farts are at 150db guys

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Just set up a low cut as the very first thing in the signal chain. Works great to tighten everything up at high volume, since the amp blocks (or captures) are going to add more bass and low mids after that. Yes, you can add more EQ down the line, and yes, it helps.


Please check the level of QC Output 1 (i assume you’re referring to XLR left) on the panel that shows up if you swipe down from the top of QC display (like on iPhone). Tap on Output1 and make sure the volume level is 0.0dB. If you’re on the latest firmware, you have an option to make outputs unaffected by Master volume wheel on QC. To do this, tap on 3 dots on top right corner > Settings, > Device Options > Master volumes… assignment. I have the output 1/2 unchecked, as I use these for gigs and don’t want to make mistakes. Check this first, and if this doesn’t solve the volume issue, there may be another issue.


Again, 150 db is not the subject of this topic
You have less education in music than me, you have less experience in music than me. You play, probably only one instrument, again less than me and you are younger than me… That’s why, at least out of respect for all that, once again 150 db is not the topic of this conversation and it’s completely unnecessary to talk about it. The whole point is what happens with the tone or my device at a volume higher than 100 db or if you like more than 80 db or any volume at which a band works…
After 35 years of playing I know how to deal with all the problems that arise with increasing the volume, but if you read carefully on my device, there is no way to do it without losing the essence of my tone, after all that cutting there is nothing left that would look like a good guitar tone…I was looking for help here,someone who knows the device better than me or can point out something I’m doing wrong not for someone to give me lectures and ask for proof…
And I don’t understand what you want to prove…
I don’t like to write on forums because there are so many such people who do not understand the essence of the question and talk and enter into conflicts about irrelevant topics…trying to present themselves as an expert in sound, playing, the entire music industry…if I asked a question and asked for help, that doesn’t mean I’m a 15-year-old kid without musical education, experience and everything else that goes with it.
So peace, brother…
I’d rather play the guitar than think about how to fix QC or post on forums and argue about Db…
And all this time I use for writing and trying to solve the problem I consider wasted because for all that time I could have been playing instead

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Thank you very much for the suggestions, I will try to do what you told me… I hope I manage to solve it

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