Optimal Sub Angle and Amp Size Options

[LastOfTheSTs]

Hey Guys,

I'm planning a 10" or 12" sub for the trunk just to round off my upgraded sound system - I was planning on probably making my own box for it and the amp but I was wondering, if there is indeed one, what is the best angle for the sub to be mounted at would be, i.e. straight up. straight back towards the end of the car, straight forward to the front or at a 45 degree angle... any thoughts?

Also does the box need to be any specific size in relation to the sub size beyond physically holding it?

Thanks for the advice

LST

This post has been edited by LastOfTheSTs: Aug 31, 2008 - 11:58 AM

[D-Man]

oh, okay.

First, Please note that this is probably going to spark a HUGE controversy in witch everyone is going to lay down the law about how wrong i am. Just like my version of testing the quality of metal, or D/S rotors, or spoilers... and the list goes on... Funny how my sh!t works pretty damn well though I'm old-school white trash sometimes, but effective is effective Again, this is not exact science, but when i fiberglass boxes, i use this method to ensure that what i've built isn't total garbage after all the work & effort i put into my work

Okay, You'll wanna grab the cone that you change your oil with or something. (roll a sheet of paper or anything to make a cone) And place it on your woofer's face pointing out. Then you'll want a small ball of yarn and some of that Ticky-Tack that your teachers never let you play with in school. (you're also going to need a protractor and a small flashlight, Maybe some tape if you cant come up with ticky tack, i just like playing with that stuff .)

The object of this game is to figure out where the highest concentration of sound waves will be going. So, take your cone, and place it infront of your woofers face pointing so that it's male. Shine your flash light thru the female side and see where the light lands. Now ticky or tape the yarn from the cone to the light. Now invert that drgreese and keep going by adjusting the woofer, you'll see where the center of the wave lands and how dramaticaly it adjusts when you change the subs just a little.

Now again, this is not exact science, but it's damn good science. lol. Smaller woofers can reflect the sound to better fill the car, and while this isn't a perfect replica of what the sound waves are doing, it measures the center of the wave theoreticaly accurate. In real life a sub fires in all directions, but the front 180deg. has the most volume. We're just maping the center of this "big Part".

Again, not perfect, but damn good. (or you can go blow your money on a decible meter and hold it to the back of your seat with the stereo blairing, while a buddy adjusts and adjust and adjust (ect) untill you get the highest reading. That's the "profesional" way of doing it.) Retarted if you ask me... But w/e

Good luck, and may the flaming of my methods begin