I know not many own this amp, but I just wanted to share my experience with the master boost.
My opinion is leave it on all the time and turn it to 10.
I really like a bit of fizz and sizzle so I also keep the channel volumes halfway.
Hope this helps someone. Feel free to tell me about how you run yours. Such underrated amp it's unbelievable.
***EDIT*** I now run the channel volumes on crunch and lead at 3:00. Clean channel volumes at full with less bass and more treble.
Invective Master Boost
Invective Master Boost
Last edited by Keolah on Thu Aug 17, 2023 10:20 pm, edited 3 times in total.