Bradprobert

Zc= 2.115 Zr= 2 Ztotal= 2.91088 70.7 Vrms 25.7654 amps Phase angle= 46.6o 1821.6 VA PF%=69 1256.9 true power edited some numbers because I calculated Vrms wrong. It should all be correct now.

A) 11.8v 11.4v C) 2280w D) 1596w

From the little bit of research I did, the difference between resistance and impedance is that resistance has just a magnitude while impedance has magnitude and phase because it is measured in an AC circuit.

Tuning lower won't make the "high bass" sound better. my brother has the same subs and its tuned 32 and it sounds a little better idk. im not a expert but some high notes sound a little cleaner on the 32hz thats all im saying. just the overall sq i would say is better Most likely the car is causing that effect to happen or the box isnt built to spec.

Guys stop! its HIS car! he can do whatever he wants with it and does not need, or want, your opinion; he would have asked if did.

My dad used to own a custom cabinet shop and his favorite glue was titebond II he did not like the 3 at all. The only glue that he used and did better was a liquid urethane glue. Super expensive stuff. But titebond II is the way to go in this application.

1283

It also shows 84.5 too. Looks like a very solid line-up! Can't wait to get my hand on one of those amps!

5234

Check out my sig, I did two in a 4th order but anyways yes .75 is the way to go. Do not skimp out on port area though. when its all said and done the box can be about 1.4 cubes gross for one but about 2.3 with two because of the port.

I have 2 sa8v2s in a 4th order and here are my mistakes that may answer some of your questions. 1. not enough port area. i had 50 sq in which was half my cone area. it would be best to mulitply that by your xmax to get a better estimate of what your port area should be. 2. ratio was slightly too big. it was about a 3:1 ratio. if i could do it again i would do a 2:1. any questions let me know i smashed my finger at a party so its kinda hard to type lol

Chris, would you be interested in helping me design a t-line for an X-18? //end thread jack lol

How much would a 3.5k and a 5k be? my zip code is 36352. thanks!