Volume pedal sweep

julindres · Mar 14th 2016

Hey guys, so this is a problem I had with the axe ultra when I owned one and now eith the kemper...I use the volume pedal a lot. When I use a tube amps I use the Ernie ball volume pedals and love the sweep. Now for using an expression pedal for volume I use a boss fv500. And I always run i to the same problem, and I lnow that the pedal will oviously not feel like the eb, but the thing is just that I cannot get a gradual sweep. Especially live with the amplified sound foh. I always get the first part of the pedal a dead spot then a jump of volume and then gradual after that. O does anyone k ow an expression volume pedal that has a gradual sweep from beggining to end? I heard the fractal one might be one, any owners or experiences? And yes I do calibrate the pedal...and at home is fine, but once I go live is just too noticeable...

thanks!

Raoul23 · Mar 14th 2016

have you calibrated the pedal in the kemper?

julindres · Mar 14th 2016

Yea sorry thats what I meant, I calibrated the pedal in the kemper...Im connecting the pedal through the remote but it still gives me the option to calibrate it.

Ingolf · Mar 14th 2016

Quote from Raoul23

have you calibrated the pedal in the kemper?

This. Expression pedals actually are made for gradual parameter changes.

Ingolf · Mar 14th 2016

Maybe the pot inside the FV-500 is faulty.

Raoul23 · Mar 14th 2016

Quote from Ingolf

Maybe the pot inside the FV-500 is faulty.

This could be the issue

DanFran · Mar 14th 2016

I had a similar problem with a fender volume pedal I wanted to use as an expression pedal. I changed the expression pedal type in the system menu and it went better. I think the different types have to do with different polarity. Perhaps try this...

julindres · Mar 14th 2016

Allright ill try it this week and see, could be faulty too i remembrer trying everything on the axe and nothing worked...

paults · Mar 14th 2016

Having the same pedal issue with both the Fractal and the KPA strongly suggest the problem is the pedal.

DanFran · Mar 14th 2016

Quote from paults

Having the same pedal issue with both the Fractal and the KPA strongly suggest the problem is the pedal.

That's right, I have overread that the issue also appeared with the AxeFX... But maybe the AxeFX has also different modes for the different expression pedal types

mrs-zambesi · Mar 14th 2016

I don't know if that's an option for you but you could use your Earnie Ball pedal with the Kemper (before, after or in the loop).

lk_bill · Mar 14th 2016

I have the exact same issue with my volume pedal, same brand/model. Boss fv-500F. Calibrated correctly as well. And Volume level pot set to Minimum on the pedal itself (can act as a regular volume pedal direct in an amp).
I also had an Ultra before the Kemper, and there was an option to control the curve and in/out points of the expression pedal. I might have tweaked the "in" point to fix the issue with the Boss pedal, I'm not too sure, my memory is blurry, but I'm sure I ended up with a sweep that was working just fine with that pedal.

julindres · Mar 15th 2016

Yeah with axe i esite the curve to make it better but still it always jad like a little spot where the volime made a sudden jump so that made doing swells hard. I will try putting the eb pedal in the loop even thought that also means more cables but maybe it will work for now until I can get another expression pedal...

thanks guys

viabcroce · Mar 15th 2016

You can also use your EB pedal as an expression pedal, with a Y-shaped stereo cable.

julindres · Mar 16th 2016

"You can also use your EB pedal as an expression pedal, with a Y-shaped stereo cable."

Thanks Viabcroce, I did try it last week but it does affect the sweep of the pedal, it is gradual but only works for like the last 30% of the pedal so any small movement makes a big change in volume. As far as the effects loop, does the kemper give me an option to put the loop in certain places? If it does where is the setting?

viabcroce · Mar 16th 2016

Quote from julindres

Thanks Viabcroce, I did try it last week but it does affect the sweep of the pedal, it is gradual but only works for like the last 30% of the pedal so any small movement makes a big change in volume.

Have you calibrated it?
If the operation was unsuccessful it might be a matter of pot's impedance, but it is worth a try

gabehizer · Sep 12th 2017

I use the inexpensive Moog footpedal. I, too, had a problem with the volume curve (too fast at lower (heel) settings, too slow toward the top), then I went into System Settings and changed the Pedal Type from 2 to 1. Voila! Nice, even, smooth volume range.

Gabriel Heiser

Burkhard · Sep 14th 2017

Quote from julindres

"You can also use your EB pedal as an expression pedal, with a Y-shaped stereo cable."

Thanks Viabcroce, I did try it last week but it does affect the sweep of the pedal, it is gradual but only works for like the last 30% of the pedal so any small movement makes a big change in volume. As far as the effects loop, does the kemper give me an option to put the loop in certain places? If it does where is the setting?

That is the typical result, if you use an analog volume pedal. Its response curve is suboptimal. Expression pedals do have different pots and are recommended.

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