Posts by Ibot39

  • Removing Tone control- Is the Tone affected?

    When the poti (really) is 250k then it acts like a 200k poti in the 4 positions. That is what the 1 M ohm does.

    But maybe it is a 300k poti with some tolerance it could easily be close to a 250k poti in these positions (and maybe 330k in bridge position).

  • my Kemper POWERHEAD does not show "External Storage"!

    Had the same problem with a stick that worked always fine before. "Reboot" the Kemper and try again. If it does not work, reboot and try again. It worked for me at some point.

    Don't know what the problem was?!

  • Rig Manager 3 is available for testing ?

    Quote from drog

    Does the lock light on the Kemper light up when you lock the effect in Rig Manager?

    First it was not light up. When switching off and on on the Profiler now the light of the Lock button reacts to the Editor and vice versa. But it does NOT lock the input and it does not lock effects.


    Not when locked in the editor. Not when locked on the profiler. Never at all.

  • Rig Manager 3 is available for testing ?

    Quote from Slyman

    Input stays locked, but Stomp and Effect blocks do not. They get overwritten when loading a rig from local library (browser mode), under Win10.

    Support ticket opened.

    @G String

    Just testing: Input does NOT stay locked!


    The editor shows it, but the Profiler still changes the values when browsing through rigs. I can not lock Input anymore. So wrong clean sense... This is a nightmare...

  • Removing Tone control- Is the Tone affected?

    If you change the load of the pickup(s) it does of course alter your sound (brighter, different frequency response).


    Why not just "hide" the currently used pot under the pickguard or control cavity?


    If you want to replace the pot you should measure the actual resistance of the pot.


    The capacitor is not important, when the pot is on 10 - so you just need a close value resistor.

  • How to solve a ground loop?

    If 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.

  • How to solve a ground loop?

    Yes 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.

  • How to solve a ground loop?

    What 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.

  • How to solve a ground loop?

    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.

  • How to solve a ground loop?

    Quote from Wheresthedug

    As ibot39 said, it is a ground loop caused by the USB output. You can buy isolated USB cables which should solve it.

    It's not ground loops alone, I think. The problem is, that the usb cable does transfer very "dirty" 5V (usually red colour positive wire) from the pc to the audiointerface, which you only hear when running the Kemper connected to that interface or a (gainy) amp sim. Caring about ground loops and turning down the preamp on the interface does help a bit.


    But for best result you need isolated or separate, clean 5V power for the interface in addition. This has the biggest effect in reducing /eleminating this kind of noises.


    I don't know about a single usb-cable that can do all this by itself?!