Since a few days, we’ve been tweaking Vandal’s guitar amp tube stages for the ability to deal much better with slight overdrive. That’s a tough one, but I think we’re close to getting that nailed. We’re aware of the fact that delicate, responsive crunch is what divides a good amp from a bad one.
Here’s the current status, a video by Dimi Nalbantov:
What we did is basically fine-tuning the biasing of all affected preamp tubes (2 in ‘classic’ mode, 3 in ‘british hybrid’, 4 in ‘modern high gain’) as well as changing the tube character in particular.
We now have different models of tubes stuffed into the virtual circuits. In some stages we got more or less 12au7 behaviour and 12ax7 tubes when more gain is needed. Apart from ‘mu’ (amplification factor) and characteristics, each tube got implanted its own tonal response. We now got even more degrees of freedom than before, yabbadabbadoo…
It should be audible that we progressed somehow. The whole amp is now more responsive to volume change on the input and reacts a lot nicer on slight overdrive settings. It ‘breathes’ more, hopefully.
We still got stuff to do soundwise… so check back often 🙂