DSP--best place to tap signal for JL/BSW sub?

[Budget M3]

Originally Posted by Budget M3

I installed the JL stealthbox this weekend--good thump and nice addition for low volumes, especially when stationary. After living with it for a couple days, however, it is my opinion that adding a sub such as this to the factory DSP system is a poor expenditure of a lot of $$$. Whenever you turn it up loud, you pretty much lose the whole purpose of the sub because the factory DSP filters out the lower frequency signals. For just a few more bucks, I will be adding a 4-channel amp shortly to power the satellite speakers as well and bypass the DSP altogether.

UPDATE: I upgraded my front satellites to MB Quarts several months ago, and was finally going to get around to installing the amp this weekend. Since it was hot here (100F+), I decided to sit in airconditioned comfort in front of my computer first and give the DSP one last chance. I happened across the following:

http://www.xoutpost.com/articles/x5/...gs-bmw-x5.html

What a huge difference these settings made! I used the instructions as-is, and there was a noticeable improvement, but still not quite to my liking. So I then adjusted the 80hz EQ to a completely flat setting and kicked the echo down a notch or two..........perfect!

I am now much happier with the subwoofer. Is it worth $600+ (including the amp)? Probably