The MAIN OUT XLR is quite hot. Have you tried the -12dB PAD switch in the Output Section?
I have adjusted the volume on my speaker according to the output level of my Kemper to an acceptable level for my room.
My concern here is that these settings could affect the sound quality so this could be the reason for what I'm feeling.
Thanks again.
Not sure, why you skipped Monitor Volume!?
The MONITOR OUTPUT might be the first choice to drive your powered frfr speaker.
It leaves the MAIN OUTPUT for FOH.
Thanks for replying me!
My speaker is connected to one channel of main output: could this impact on sound quality?
Monitor output is off.
Basically, I am using just the SPDIF out and one Main output channel in my current setup.
And of course, the front jack for headphones.
Thanks!
Good morning,
Over the last times I used my Kemper I experienced some issues regarding the sound quality of the profiles, both clean and distorted.
I started to think that the cause could be due to wrong output volume settings.
I mainly use my Kemper with headphones and the issue is more pronounced when I hear it through my Headrush FRFR 108 speaker.
I also have a Focusrite Scarlett connected to my Kemper through an SPDIF cable.
Here are my settings:
Main Volume -13 dB
Direct Volume -14 dB
Headphones Vol. -7 dB
SPDIF Volume 0.0 dB
Pure Cabinet 2.5
Space 2.5
The volume I hear through the speaker is ok but the quality seems rather poor compared on what I hear by headphones.
Should I change something in those values? For example settings al of these to 0 dB and adjust them on the speaker?
Many thanks!
Good evening,
I was thinking about to buy an UPS to protect my Kemper to voltage issues and for having a backup power if the light goes out.
I know that there are different kind of UPSs, the chepest are pseudo-sinusoidal and the more expensives are sinusoidal.
Is a pseudo-sinusoidal UPS ok for the Kemper?
Which is the best solution to protect the Kemper from electrical line shocks, since this is my main target, and power related issues and interferences?
Many thanks.
Good afternoon,
I'm experiencing a kind of issue with my Kemper.
Since I can't get too loud in my room, I've setted Main Volume level to -13 dB. I have an FRFR108 speaker.
I don't know if my issue is related to this, but my profiles sounds with no sustain at all and when I try to play some tapping or legato with distorted profiles it sounds no good at all. This happens with a large amount of good quality profiles.
Should I turn up my Master Volume and instead lower the speaker volume to get the desired level or it's fine my settings? Can this parameter affect the tones other than volume?
Do you have any advice for adding some sustain or more spacing to distorted profiles?
Many thanks, and stay safe!
Good morning,
I am trying a Beyerdynamic DT 770 PRO 80 Ohm headphones with my kemper head no power.
At my home with my FRFR 108 I use to set master volume level at -10 dB, with FRFR volume set to 2/10 and it works great for me (very loud and clear in my room).
This Kemper Master volume settings works pretty well also with the iPhone heaphones I have used so far.
Now with my new heaphones I noticed that I have to increase the Master volume of the Kemper to 0 dB to have a decent volume (I think this is due to the higher impedance of the headphones).
On the other hand, when I turn on my FRFR 108 it is too high.
What do you think about my settings? There is a way to unlink the master volume to the main output and Headphone output?
Many thanks!
Display MoreIf you buy this for example, you will not need the iDefender:
http://www.aqvox.de/usb-power_en.html
"It is equipped with unique handmade USB adaptors, of which one side is being pluged to the USB socket of the DAC or device or computer and the back side takes the USB cable´s plug. Inside that adapter only the two USB data lines and not the powerline are routed through. The 5 V power supply line coming from the computer is terminated and replaced by the clean power of the AQVOX USB-Low-Noise power supply."
If you want to use the iDefender3.0, there also is a AQVOX power supply with micro usb plug.
I have these, but the price for all this stuff is pretty high. They change a few parts like the plug, but it is basically a rebranded cheap 20 dollar made in taiwan ac adapter. I think the brand was called "zip". But nowadays hard to find.
You can look at ebay for (old/used) made in taiwan or china linear adapters with 5V DC 1A output. But they don't have the right plug (micro usb) for the iDefender. Or you try the iFi iPower 5v adapter that is available in a set with the iDefender. But as said, I am not a big fan of switching power supplies, for the above mentioned reasons. But maybe it works in your setup. If not, send it back.
The iPhone charger will probably introduce more/other unwanted noise - but you can try this of course.
I get the best result with the iDefender (breaks earth and usb power) combined with the AQVOX adapter with simple micro usb.
If we are talking about the same issues this will completely kill the noise. If you find another solution or adapter, let me know.
Don't know why the TAG didn't work! Sorry, the upper post is a reply to your latest one. Many thanks.
Thanks for your reply!
Just to let you understand what I'm exactly talking about I report this video:
Display MoreYes exactly.
The iDefender3.0 will break the power supply line, so the interface no longer gets power from the usb/pc. Data still gets through unaffected, full speed.
You need an external 5v power supply with micro usb, that you connect to the side of the iDefender.
But with most switching power adapters you'll get annoying noises. So you should use linear 5v or low noise adapters with good filters.
Many thanks, again!
Can you advice me some specific 5V power supply? I have the 5V 1A charger of my old iPhone, but I don't know if it would be suitable as low noise for this application.
Display MoreWhat came to my mind: For the mouse, you can try setting a lower polling rate (if this is supported) or try another mouse. I had problems with a wired mouse too.
As said, the main problem is the usb connection from pc to interface. You can try something cheap (search for "usb isolator 1500v ADUM4160"), but you'll need an external power supply for your interface. And this will probably SLOW down your usb or maybe will not work at all.
What does work for me is the mentioned "iFi iDefender3.0". It does break the usb supply voltage - that is the most important thing!! But it does not slow down anything.
For a powered device like your interface you still need an external low noise power supply.
Or you look at something like this power supply:
http://www.aqvox.de/usb-power_en.html
One of the versions (I think) also does break the usb supply voltage, but I am not sure.
I use the iDefender in addition with an aqvox power supply with micro usb connection. Not a cheap solution at all, sorry. But it was the only thing that worked for me.
Many thanks for your reply!
I just have to clear my mind a little: My focusrite 2i4 snd gen has just one USB type B port which serves both as data transfer and power supply. In your opinion, to solve the problem can I just apply the iFi iDefender3.0 at my motherboard's USB port and from here connect the data/power USB cable to my focusrite?
Many thanks.
I don't think that usb connection from pc to Kemper is a problem in THIS case. The main problem here is the bus powered usb connection from pc to audiointerface.
For other cases there are cheap usb isolators available. For example I use such cheap china adapters for connecting my nux solid studio (for editor) to eleminate any noise the unit generates.
Thanks for your reply! Do you advice me an USB isolated cable and do you know a commercial one I can buy?
Thanks again!
Yes, I used to have the same issue with my RJM Mastermind PBC connected to the editor by USB. Apparently there is an isolated USB cable that sorts it. I never bought one as I ended up just unplugging the USB from the PBC but it is likely to be more useful leaving the KPA connected.
Many thanks for your reply! I think that this isolated USB cable could be a solution for me. Do you know a commercial cable of this kind?
I would like to have the audio interface on while I'm playng with the Kemper so I have to find something like this if I want to solve the problem.
Thanks again!
When the Kemper is off I can hear the noise through the FRFR 108, because I have one of its input connected to the Kemper and the other to the audio interface for listening also the PC audio when I need. As Ipreviously stated, the only way to eliminate the noise is to disconnect the Focusrite 2i4 from the USB cable (which is is power source).
If the kemper is on and I unplug the cable or engage the kill switch of my guitar the noise is attenuated.
My mouse and keyboard are combo wireless, one adapter for both.
I have LCD IPS screen
For the PSU, here is my doubt. I've tried to put it out of my PC case but nothing is changed.
Since it is a good 550W plus gold certified power supply which has almost 4 years of normal/light usage, I prefer do not change it unless I would 100% sure that it is the origin of the problem. I have no graphic card because I use the one integrated in my i7-6700 CPU so I think is well sized for my deskpo PC.
I'll wait for some advices or opinion!
Many thanks.
Good evening,
I'm struggling with a bad ground loop (I think).
When I've my Kemper plugged into my Focusrite 2i4 I can hear a noise, expecially with high gain profiles, which is directly linked to the movements of my mouse and even when my CPU is working more intensively.
I've tried to push the ground/lift button both in the Kemper and on my speaker (FRFR108) but it hadn't any effect.
I can hear that noise even with the headphones directly connected to the Kemper.
I've tried also to move the Kemper in a separate current outlet but it was useless.
The only way to stop this is to unplug the USB audio interface. So I think the issue is coming from the USB connection that it should be causing a ground loop.
But I'm quite confused, because I've kept the Kemper connected to the same motherboard to use RigManager and no noise can be heard.
So, should I have to change my audio interface because it is defective or should I have to investigate more (e.g. on the PSU of my PC, which is mid-range one)?
Has anyone win this battle with similar problems?
Many thanks!
Good evening, I own an audio interface with no S/PDIF ports, so I would have to connect the Kemper through the balanced male XLR main output connectors.
Which is, according to your opinion, the best type of cable for this purpose? Which cables do you use?
I saw some stuff from Mogami, Wireworld Luna, Mackenzie and Van den Hul but it is not clear for me which can be the best one looking also for the quality/price ratio.
Many thanks!
from what I can tell by looking at their website it does have two mono inputs to connect to different instruments or sources at the same time. Have you tried to set the Profilers output source to master mono and only connect a single cable between the devices?
Good morning and thanks for your reply!
Just tried your suggestion: I've found an improvement of the definition of my sound in the mid/high gain profiles range!
I'll think I'll use the other input of the FRFR cab to connect the output of my audio interface.
Are you using a stereo out from the Kemper into a single mono 108 cab?
Good morning, no, my FRFR 108 cab has a L/R stereo imputs. I connected the L/R main TRS out of the Kemper to the respective inputs of my cabinet.
If you use any delay , check if the delay has "Modulation" activated .....
Can sound like "phaser" in mono output
Cheers !
Thanks for your reply!
No delay is applied and I have stereo connection to the FRFR 108 cab. It seems it has been resolved just by rebooting the Kemper, but this is not the first time I'm experiencing this issue. Don't know and can't imagine which could be the origin.
How are you monitering your sound?
I am monitoring my sound through an Headrush FRFR 108 cabinet connected at the unbalanced TRS main out of the Kemper (I have not an XLR-XLR cable here at the moment).
This morning I have retried and the problem seems attenuated. I don't know why, I didn't change anything, just rebooted the Kemper.
Many thanks.
Good evening,
I'm quite new to Kemper and I'm currently expriencing an issue: almost all my profiles, expecially high gain ones, when I play sounds like they have a kind of subtle phaser effect applied, even if no phaser stomp is in.
I want to try to avoid a reset to factory settings and I'm here to ask if there is something I can try in general settings to try to fix this. Many thanks!
R.
