I have a single 10" Xplode sub, and small Alpine Vpower amp.

All intergrated into the trunk

But i have heard about some boxes/sub combos that are great for convertables!!

 

I have a Group Buy going on sub boxes, subs and amps. Just click the link in my sig.

I've tested the ones I sell... it can be prefectly tuned with the music you listen to... or... you can park it inside a garage and have it rattle the garage doors... It can be just silly loud.

Are you looking to upgrade to new or better gear? (speaker about the sub)

 

My answer to this question is always custom box with a sub you like installed.

Prefabs are solid but rarely give the same performance as a custom box.

Though, the nice thing about Johns group buy is that it IS a custom box.

So I'd suggest either making a box yourself (I've done both MDF and fiberglass for mine, neither are overly hard but if you want a nice look it will take skill and plenty of time) or snap up one of his setups.