How would this set up effect my system?

[89Sentra 10+ year member]

I am thinking of doing a set up like this to my car:

http://www.completeaudio.net/installs/s2000.htm

I just was wondering what are the advantages/disadvantages of having the subs facing upwards.

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[89Sentra 10+ year member]

Thanks for the reply. I'm amazed at how you know all this.

Theres a few problems i'm having. i cant find the SD on the Rockford site. May've its obvious and I'm being ignorant..

Thanks for your help..

 

[89Sentra 10+ year member]

Thanks for the help..

I got 72.28818

So i guess I can't have upward firing. Does that number sound right?

Also where can I get WinISD?

 

[89Sentra 10+ year member]

I just used the program and got the glos to be 72.2634%.

where am i going wrong or are we entering different numbers?

I am using the 2112 model

 

[jbl_marshall21 10+ year member]

sweet the guys using a really really nice amp on a set of 50 dollar subs. now that guy has some nice subs //content.invisioncic.com/y282845/emoticons/banghead.gif.8606515f668c74f6de0281deb475b6fd.gif some subs firing upwards loses decibels. what kinda car do u have?