Etienne. If it's made by Bose it'll be a very good piece of kit they don't make rubbish, pre- amped is also the easiest and most simplistic way. No dramas helping you wire it up mate it's quite easy really, it's the tidying of wires etc that takes the real time.

Pfandango that's a beautiful vibe set up mate with a ported ski hatch too nice work.