Hi. I have a Code 100 combo and I have been thinking of upgrading the speakers. Should I replace the stock speakers in the amp, or would it be better if I just bought an external cab and bypass the built in speakers? I have found that when I deactivate the cab simulator in the amp I get a more “defined” and less muddy tone, but sometimes it just sounds like “an amp without cab”, the sort of scooped sound if that makes sense, even if the sound comes out through the amp speakers which should be considered a cab. If an external cab is better, what wattage should it be? Thanks!