presence control working in oposite direction on some amps

[pauliusmm]

Is this normal ? When turning clockwise presence knob decreases the effect. It acts the oposite way on some amps.

for example Class A amps vs Hipower amps
when turning presence clockwise on class A it decreases presence
when turning presence clockwose on Hipower amps it increases presence

 

[dsl]

From The Manual (Hope this helps):

PRESENCE/HI-CUT – Boosts (or cuts) the upper frequencies from the power amp simulator by varying the
negative feedback frequency response.

Increased presence can help a sound cut through a heavy mix.

Amps with no negative feedback circuits in their design cannot utilize a presence circuit.

If DAMPING (which determines the amount of negative feedback) is set to “0.00,” PRESENCE becomes a simple high-shelf
equalizer at the output of the power amp, and its label changes to “HI-CUT.” This allows you to control the high-frequency
response of the power amp for models that don’t have any negative feedback. When changing to a model with no negative
feedback (i.e. Class-A, Mr.Z, Recto Red), be sure to check your presence settings as settings higher than zero might darken
the sound undesirably.

Note: Unlike previous Axe-Fx models, the virtual presence circuit on the Axe-Fx II now operates from 0-10
instead of +/-5. Set it as you would on a regular amp.

 

[pauliusmm]

thanks