Hey, I'm in the process of finishing up my box and I was just wondering, why do people put that fabric onto the boxes. Is there a specific purpose this has over just painting the box ?
i was thinking of using that textured spray paint. has anyone ever tried this? its a stupid color tho so ill put a coat of black over it. it should look pretty good when im done.
Yeah I used spray texture on a system I had about 5 years ago. It is very expensive i speant like $75 for two subs(4cf each) and two bookshelf boxes(1cf each). I used the gray one. They looked good. Different but good.
Carpet is bad for acoustics because it dampens sound. Take a quarter and bounce it off of your coffee table (wood) and then bounce it off of your carpet. Yes I know, it is going to dampen the midrange and highs more than it would in the bass frequencies, but bass frequencies are not exempt from this at all.
Bass frequencies are non-directional, but can be altered/muffled by baffles or any other anti-reflecting surfaces.
Take an enclosure for example:
If the box is empty it will sound hollow, and boxy. It will boom because the inner walls reverbrate at a different frequency than the woofers cone. It then adds to the sound. If an enclosure has wall lining, it will reduce wall reverbration, but it will not eliminate it completely. Just use your imagination of what sound does in relation to its surroundings.
I know exactly what you are saying mixn, but in a car enviroment, I'm not sure if it would make a huge amount of difference.
How much of a car is made up of carpeted, absorbant materials? You'll be getting absorption from the top and bottom while getting reflection from the sides, front and back. It is also not a perfect rectangle either; seats, consoles, people, etc are all interfering with sound paths. There are so many variables within a closed car system that it is very difficult to do properly.
Unless you are going for a competing SQ (and willing to spend many, MANY hours fine tuning) it won't be worth it.