so I bought a behringer ultra g to do direct amp profiles with, and it's not coming out the way it should that's for sure. Amp is a 5153. When profiling, the profiles do not end up sounding like the amp at all: the definition never gets above 3.0, and gets lower with more gain! For instance the red channel I got profiles with the definition at ZERO, not at all what you would expect from a focused high gainer. All my connections seem to be correct. What is weird is, I get the high pitches microphonic squeel on the higher gain channels, much like if there was a microphonic tube, high pitched squeel with the volume on the guitar at zero etc: like what happens when you use a guitar cable between your speaker cab and amp, but I'm using speaker cables. It does NOT do this with the amp plugged straight in and the Kemper not connected to it... can anyone help me out?
Problem with making direct amp profiles!
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Are you using battery or phantom power? Do you have both -20 pads engaged?
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I would try the battery. I thought my amp was bad before and actually sent it back for repair......turns out the battery in the DI was bad.
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Is you speaker connected to the amp, and what is master volume set at?
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Are you using battery or phantom power? Do you have both -20 pads engaged?
the battery is brand new right out of the box, no phantom power used. I had only one of the pads engaged, I did not see clipping at the volume level I was using on the DI itself
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Is you speaker connected to the amp, and what is master volume set at?
yes
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Is the DI box on top of the amp or at close proximity otherwise? If so, try moving it further away from the amp.
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Try the battery. It eats batteries and there is no guarantee that the battery sent is any good. I take the battery out each time I use it because it will eat them if left in even not in use. What you described is familiar with what I experienced. If you have a multi adapter around with a 9v plug use it so you never have to worry about the battery again.
If you have no clipping it's either the battery or the unit has defects.
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yes
And the master volume?
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Try the battery. It eats batteries and there is no guarantee that the battery sent is any good. I take the battery out each time I use it because it will eat them if left in even not in use. What you described is familiar with what I experienced. If you have a multi adapter around with a 9v plug use it so you never have to worry about the battery again.
If you have no clipping it's either the battery or the unit has defects.
the battery was one I went and bought, not one that came with the unit (it didn't come with one)
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And the master volume?
I've used all kinds of settings on the amp from low, to over speaking volume, to above bedroom levels, to gig/Much higher volume levels
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Is there a built-in (hardwired) noise gate in the amp? Some amps have that, which can cause problems.
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Maybe try the ground switches on the back of the Kemper. They have got me many times.
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Maybe try something else other than the Behringer. Nothing against the brand...just a suggestion.
If you try the Behringer going to the DAW with IRs does it sound as it should?
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huh interesting.. maybe I need to check those pads myself.
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I think one of the biggest problems with the Kemper and digital in general is just the headroom issue. It's the reverse of what everyone's been told for so long with analog where you want to go towards the hot end of things in order to reduce the noise level in the signal. With digital and modern convertors the noise floor is so low but the headroom is a hard set fixed point where clipping occurs so it really makes good sense to use much quieter signals in order to get a realistic dynamic range and clarity from your source.
If you think about how some amps and signals can have a transient that's maybe even 30dB louder than the body of the note itself we kind of need to be looking at an input signal that's really very quiet in order to capture the full dynamic range. Then if you want that analog compression and dirt you need to push it up afterwards in the box.
