I have owned and played lots of 12 stringers and should make the point that if you just want something a bit louder than your 6 string then suggest you get an amplifier, as the 12 string is, in my opinion, a completely different instrument which shares the same chord structure as the 6 string. I use mine for specific pieces.

Incidentally Silas - Leadbelly played a Stella 12 string and is regarded as a virtuoso on the instrument. I was fortunate enough to own a Stella until some traveller pinched it and then lost it in a fire.