shalyndavis23

so i have i have a 2008 bmw 550i sport with logic 7 i am wanting to install the stealth jl sub box but i was reading that it will not fit e60 with logic 7 Car Audio - Stealthbox® - BMW - 5-Series is this because the logic 7 amp is in the way please help?

535-N-D-sunshine

Do a search, someone here did it in an M5 and he moved the AMP and some bars and was able to get it to work.

subterFUSE

I have the Logic 7 and the JL Audio Stealthbox.

In order to use the stealthbox with Logic 7 you must either relocate the Logic 7 amp, or modify the stealthbox to fit. My installers modified the box by cutting out a notch and re-fiberglassing it. In retrospect, I would have preferred if they just relocated the Logic 7 amp.


I would strongly suggest using a lot of Dynamat in the trunk, especially the driver side of the trunk where the stealthbox fits. Our cars rattle like a mofo, and it sounds really ghetto from outside. haha.

shalyndavis23

thanks i was hoping someone has did this, i paln on using dnamat! how is the sound quality?

subterFUSE

Sound quality is good, as long as you do sufficient dampening to take care of rattles.
You do need to make sure you select a strong amplifier since this is a sealed enclosure, and the E60 trunk is a very effective "bass trap." In addition, I keep my ski pass open most of the time to allow more bass into the cabin.

JTrejo

what if you dont have a ski pass?

subterFUSE

Then you will want a fairly strong amplifier.

I am running my stealthbox with a JL Audio HD750/1 amp. That would be my recommendation.

subterFUSE

Oh.... one more tip I would like to make:

I suggest having a subwoofer level control available to you up front. This will be very handy for adjusting the output of the woofer depending on the level of your audio source.

I am running my system off an Audison BitOne processor which offers Subwoofer level contol separate from the main volume. I use it constantly, and especially when I have the ski pass closed vs. open. (i.e. more sub level when close, less when open)

shalyndavis23

so i just got bought the jl hd750 amp and jl stealth sub i am going to try to install it in my 550 cant wait to hear the sound

tweeker1

bump