Upgrading B&O sub

Joe angrisani

New Member
Joined
Mar 26, 2021
Posts
3
Reaction score
4
Location
Florida
Ps there is a factory grommet under the pass side second row that I ran the 4 gauge through and wasn’t a bastard to get to , I’ll be running a 1/0 in it’s place , and the grommet is large enough, I’ll try to get a pic this weekend
As far as mounting the amp, there’s room under the 3rd row and it won’t interfere folded or up. And a 1200.3 isn’t small,
As far as power recommendations, ( and this may be because I haven’t defeated the dsp yet) , 300 watts rms won’t get it done, truck is big and will eat up 5-600 rms minimum, on the subs. When the B&O and factory head unit are up around 20-22 I’m beginning to lean on that 1200, I’d say probably 65-75% to give you an idea
 

Team_Z

Well-Known Member
Joined
Jun 13, 2021
Posts
72
Reaction score
37
Location
Wa
Sorry to bring up an old thread, has anyone ever done the Polly fill mod that the we did on our F150 subs? That improved the bass some.
 

heatfan4life

Member
Joined
Jan 7, 2020
Posts
14
Reaction score
11
Location
US

Attachments

  • 20220623_162120.jpg
    20220623_162120.jpg
    137.5 KB · Views: 15
  • 20220624_073515.jpg
    20220624_073515.jpg
    183.7 KB · Views: 15
  • 20220624_112423.jpg
    20220624_112423.jpg
    198.2 KB · Views: 15
  • 20220624_185712.jpg
    20220624_185712.jpg
    205.3 KB · Views: 15
  • 20220624_200026.jpg
    20220624_200026.jpg
    109.2 KB · Views: 15

5280tunage

Full Access Members
Joined
Sep 17, 2019
Posts
1,087
Reaction score
570
Location
colorado
So I waited and waited for the JL stealth box, and it's finally here. https://www.jlaudio.com/products/sb-f-exped4g-10tw1-car-audio-stealthbox-ford-expedition-94688

Kinda lost interest, so having a custom fiberglass box built that will house two 8's. Will be "steath", and retain my cargo area. Stay tuned for the finished product
Yeah, I saw that was released, but man JL is proud of it, that price was ridiculous. The most expensive stealthbox I ever bought was around $800, this thing is 50% more. I kind of gave up for now too.

Be interested to see what the final product looks like on the custom enclosure. I just hate to lose that space, I use it for hitches and recovery straps, etc.
 

5280tunage

Full Access Members
Joined
Sep 17, 2019
Posts
1,087
Reaction score
570
Location
colorado
Ps there is a factory grommet under the pass side second row that I ran the 4 gauge through and wasn’t a bastard to get to , I’ll be running a 1/0 in it’s place , and the grommet is large enough, I’ll try to get a pic this weekend
As far as mounting the amp, there’s room under the 3rd row and it won’t interfere folded or up. And a 1200.3 isn’t small,
As far as power recommendations, ( and this may be because I haven’t defeated the dsp yet) , 300 watts rms won’t get it done, truck is big and will eat up 5-600 rms minimum, on the subs. When the B&O and factory head unit are up around 20-22 I’m beginning to lean on that 1200, I’d say probably 65-75% to give you an idea
When you post a picture of the grommet location (I crawled under this thing and looked and looked and couldn't find one that wasn't "too close" to the exhaust), can you post one of amp mounting location? Is it back closer to the storage tray? I took a small usps box about the size of one of my amps and put it under the third row with the seats up, and when I put the seats down, it definitely crunched the box. Sort of gave up on that location at that point. Suppose there could be differences between the trims but curious how you got it to work.
 

heatfan4life

Member
Joined
Jan 7, 2020
Posts
14
Reaction score
11
Location
US
Sorry guys for the delay. I wasn’t sure it was gonna work so I just used some stuff I had laying around
I had a pac loc, a JL 1200.1v3, and some kicker comp 15’s in a band pass ( not my intended subs just for now)
I tapped the loc into the l&r inputs to the factory sub amp in the left rear panel. I left the factory B&O sub functioning as it was but just tapped into its input for an output to my JL amp. The rest is obvious as far as connections. The 15’s are crossed over ( lpf set to) about 70 hz , and subsonic filter is at 15 hz, 2 db boost @ 35hz. The loc has a volume knob that I ran up to the center console. All of the factory anc and dsp are un touched. The 15’s fill the void that the factory 10 can’t and just extend the factory systems range. Of course I can turn the knob up and knock signs off buildings but when the gains are at a mature level it actually sounds pretty good. Does it need more, yes but it adds what the factory junk was missing. I’m going to ditch the 15’s, and put a single 13w7 in its place, it’ll need a bit more on the gains but I won’t have lost access to my third row lol
I’ll keep ya’s posted as I add but this was an easy good start. I suspect I’ll upgrade the 10 in the factory sub after the w7, then some 6.5” separates for the front doors and an amp. When I play with circumventing the dsp I’ll keep yas posted.
In summation a good amp and a 10-12” sub is easy to add and makes a huge difference
Absolutely, almost passed out when he told me the price
I had some things stored in there, but never go into it. Hoping to finish it up this week.
Yeah, I saw that was released, but man JL is proud of it, that price was ridiculous. The most expensive stealthbox I ever bought was around $800, this thing is 50% more. I kind of gave up for now too.

Be interested to see what the final product looks like on the custom enclosure. I just hate to lose that space, I use it for hitches and recovery straps, etc.
Absolutely, almost passed out when he told me the price

I had some things stored in there, but never go into it. Hoping to finish it up this week.
 

heatfan4life

Member
Joined
Jan 7, 2020
Posts
14
Reaction score
11
Location
US
This came out so sweet, and hits HARD! So happy with the finished product
 

Attachments

  • 20220730_195946.jpg
    20220730_195946.jpg
    242.4 KB · Views: 15
  • 20220728_164453.jpg
    20220728_164453.jpg
    192.2 KB · Views: 14
  • 20220730_201124.jpg
    20220730_201124.jpg
    180.7 KB · Views: 15
  • 20220730_202227.jpg
    20220730_202227.jpg
    265.8 KB · Views: 16
  • 20220806_195954.jpg
    20220806_195954.jpg
    261.1 KB · Views: 15

Latest posts

Forum statistics

Threads
49,558
Posts
469,777
Members
41,023
Latest member
icequeen713
Top