I have been enjoying my two Vox Pathfinder 15R's getting some great cleans with slight breakup that sounds great. I wasn't looking for any better sound being really happy as they are but I was given a 12" speaker cabinet and curious to plug my Pathy into it, oh boy! I think the little Vox Celestion Bulldog 8" speaker is the perfect internal 8" for the design but plugging into an external 12" cab gave a much fuller, fatter & balanced sound with a greatly improved bass response. I still love the amp sound with the original 8", but its like another completely different amp plugged in to the 12". For the Pathy owners (like me) who had not tried plugging into a larger speaker, try it!