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Originally Posted by billytheman1188
Dont speakers need a little area for them to sound good (like subwoofers?). I don't know too much about audio cause i'm more about performance so i'm JW. [......] I do know speakers need to be in certain positions for them to sound right.
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Woofers/midranges/speakers (whatever you want to call them) need some sort of enclosure in order to produce low frequencies. Otherwise, they sound very "aired out". Likewise, building a large box for normal 6.5 speakers as one would do with subwoofers is about the same as not having anything to enclose the back because the speaker doesn't have any sort of seal. Speakers are a lot easier to enclose though. They don't need much space behind them. That's why door speakers work. The metal around them gives them enough enclosure to be able to produce a low tone without feeling aired out.
As far as position, it's all how you look at it. My 94 Cutlass has speakers in the dash, but they're practically non existent as the speaker cone is pointed towards the windshield. If it were angled towards the cabin then my hearing perception would be towards the front and not the back. That's how positioning works. You want to create an allusion that the source of sound is either coming from the front of you, the rear of you, or the side of you. All depends on how you want it. I personally like to feel as I'm in front of the sound rather than listening to it from a background perspective.
The OP is obviously building a competition sound system. In this situation, it doesn't matter how it's positioned ergonomically, but rather what matters is how it's positioned to create a louder sound. In his case, he would need to create a backing so his speakers don't lose "pressure" when creating a low tone. The metal frame of the door can provide that, and to some, it can be enough, but depending the op's vision, he may have to create "channels" so the speakers don't sound as if they're chillin in the air.
Now I'm not an expert, but I do know enough to create something loud and "bangin". My Grand Am is known to be loud, and I'm taking the Cutlass to the next level, simply for it being a convertible.