I have a marshall avt100 but I need it a little bit louder. can i put a cabinet under this combo amp to make it louder?
i have a valvestate avt 150 and there is an 8 ohm extention jack on the back. If your 100 has that jack then by all means hook it up right through there
Adding a cabinet under an amp rarely makes it "louder." It'll sound bigger, but in terms of decibels, there won't be any difference.