Odd Question - Trying Again

Imagine a right angled triangle behind the seat, measure two or three sides with a tape measure then calculate the angle from the link below.

below.http://home.alltel.net/okrebs/page91.html Ah, yes. See? This is why I should've paid more attention in school... Thank you for the refresher in geometry, I certainly can go about it this way!

If someone else reads this and knows the angel, though, I could still use it :-).

~Mister.Lull

You don't need to know the angle, you need a template. Take a couple of wood rulers and a C clamp. Put the rulers against the floor of the trunk and the back of the seat. Clamp them together tightly to hold the angle, and then transfer the angle to the material you're building the box out of.

That would be an excellent idea, except that this will all be planned (on paper) ahead of time, and right now there's already a box in there. Another way to get the information I seek, along these same lines, would be to grab a protractor and get into the trunk to check it out myself. You could call me lazy, since I haven't yet done this, and I'd probably deserve it... The box that in the trunk now will have to be moved, and it's simply a pain in the ass. I had just been hoping that there might be an easy answer here (by someone knowing the angle I've been asking about) as to what that angle might be...

This will be for a subwoofer enclosure - not of the sort that are simply thrown together. The kind of enclosure that takes into consideration the volume of the enclosure, in conjunction with one (or more) ports, so that the ports involved will tune the frequency of the sound produced by the subwoofer. I know that sometimes this type of application lessens the priority (and quality) of help I receive in this group, however, you all know more about Volkswagens specifically than car audio groups I would talk to.

The idea, in general, is to create more trunk space than I currently have. The enclosure I've already built is very nice to look at (if I do say so myself), but leaves much to be desired in the way of space management. If you'd like to see me work, you can do so here:

I built a sub box for my Jetta wagon. I figured the angle, drew it up in Autocad to allow for no brains volume calculations. No, it is not for some show stopping loud bass but just to fill in the missing lows. Of course I am missing a lot of midrange with the stock head unit but that is another discussion. As it is I don't like the sound delay fomr the sub. Maybe what I don't like is the directional nature of the bass when it is so far back in the car.. That myth of low frequency speakers can be placed anywhere is a myth to my ears. Another question. Are there calculations that need to be made to compensate for a not square or cubic internal shape? Energy starts bouncing around at angles more so than a square box.

Don't the seats flop down like in a Jetta Wagon? If so it is not rocket science to make a template as somone else mentioned without removing your existing box.

Level.....Plumb.....Square.

If your case if you had a piece of STRING with a WEIGHT on the end and a TAPE MEASURE you can figure out the angle. Since you have a box in the way already you could fold down the seat, drop the string with the weighted end down to the pivot part of the seat and then measure from the top of the string horizontally to that box, or where the top of the seat is when latched.

It is probably best to remove the box and measure from inside the trunk except you will hold the top of the string up to the top of the latched seat dropping the weighted end to the trunk floor. Then measure the distance from the weight to the bottom of the seat.

Math is involved since you will need to measure with tape measure:

1. length of the string needed from the top to the bottom
2. distance from the weight to the bottom (or from the top of the string to the current box)
3. length of the back of the seat. (not really needed since you could compute it, but why if easy to measure)

This should give you a fairly accurate right triangle and allow you to compute on paper the angle that you need. ;-) You can then transfer measurements to graph paper, scaling them down, and then use a tool (protractor?) to find the angle.

If I am wrong please someone correct me!