I've not tried that cab, so can't speak from experience with it... that said... I can't identify the stock speaker... which would help in having some kinda clue as to what the cab might sound like...
yeah... not much info on that particular cab out on the interwebby thing. Depends on what it's made of, I guess. I have a 1933 1x12 that is all wood but it's a ported closed back, not an open back like the C12.