Q-Logic Wedge-style boxes
These will fit my 6"x9" speakers and they're inexpensive.
This is for a 15" subwoofer. I like that the box seems to be compact so it won't take up a ton of room.
This is killer for my subs. And I like that it's light gray. I also like that the boxes separate the speakers from one another. The slot vent is nice too.
This will be great for pimping out a hatchback. At least this way I won't have to cut the wood and cover it in felt myself.