LinuxMusicians

@kirjis
Thanks for testing and feedback.
I'm glade to hear that the change at least not hurt.

Finally had the time to test it out, build was quite easy on Arch using the AUR-package guitarix-git as a starting point for the deps.
I have to say this is a big improvement ! It feels way more intuitive from the start and the "muffle" I was referring to seems to be gone! I focused on the standalone version for now, but I suppose I will have similar things to report on the plugin (GxAmplifier-X) once I dig into it!
Big thanks and kudos for the find to @tramp

@robin
Thanks for testing.
I'm glade to hear that it makes your guitarix experiences better..
And yes, sure I've implement the same change for the Lv2 plugs.
Just, in guitarix main I've implemented a dcblocker cause some sound-cards tend to forward dc-offset, which may lead to some ringing noise in the tube simulations. (Hence that was the reason why we once implemented the high-pass filter, yes, the memory comes back ) A dcblocker could do the same without interference with the frequency, so it's the better choice.
However, I've forgotten to implement this one in the LV2 plugs, so you may experience some noise from them, as long I haven't fix that, which I'll do soon.