The BOss Katana 100 head is a powerful beast and using the tone studio software, offers huge flexibility in sound control. However, I’ve been struggling to find an option that boosted the volume without adding too much extra dirt. You can short out the FX loop and set a volume change by switching it in and out, but I’m using the “4 cable” method to add my spacial effects after the preamp, so this wasn’t an option.
I played extensively with the “solo boost” options, but the sound was getting dirtier rather than louder, even using the “clean boost”. Some googling later, I realised the effects chain defaulted to #2, where the boost was before the preamp. Switching to chain 1 moved it after the preamp, which gave me extra volume without adding more dirt. Result 😉