This stage is an accurate approximation of the interaction between the power tubes, output transformer and global feedback, which produces a particular frequency response for different tubes and speakers.
Controls the hi-mids response just like the feedback based presence control on tube amps. Turn it up to cut through the mix or turn it down to sweeten aggressive distortions.
Controls the low-end and resonance peak caused by transformer-speaker interaction in tube amps. Now you can control the dampening factor and get super tight low-end clarity and authority.
POWER TUBES SECTION:
3 way toggle switch that mimic the different response of classic tube types:
EL34: Complex mid response with a compressed feel.
6L6: A more open and dynamic response with deeper bass and sparkling highs.
KT88: Similar to 6L6 but with improved low-end range, perfect for bass or 7+ strings guitars.