Put some bump in that trunk (Sub install with custom box)

Great Job! Looking forward to doing this myself soon. Going to go with one of these as soon as they are ready:

12" Stereo Integrity SI BM mkIII:
simotors3.png


BM_mkIII_9_web.jpg


Stereo_Integrity_BM_mkIII_2_small.JPG


Stereo integrity BM mkIII
- 12" subwoofer
- 3.2" mounting depth
- 10" diameter nomex spider
- 14mm of verified Xmax2.5" diameter
- 8 layer copper voice coil
- Dual 4 Ohm
- 450 watts power handling
- Flat diaphragm
- Custom tooling of virtually every part
- 10 ring neo magnet cluster
- 0.5 ft^3 sealed enclosure requirement
 
Correct!

---------- Post added at 03:13 PM ---------- Previous post was at 03:12 PM ----------

Looks nice but I bet they cost more than $39.00 shipped!
 
Super easy, just cut all your glass mat in strips or whatever shape you need before you mix the resin. The rest is like first grade paper machay. I guess i spelled that right. Anyway you get the picture. Once you mix the harder in you only have about 15-20 minutes working time. Good luck.
 
Im working on a mold, i should have a few ready in a fews weeks. Im trying to get the cost down, the materials are fairly inexpensive but they are very labor entensive. When making my own that wasnt an issue, but for resale it really drives up the price so im in the process of shortening the manufacturing time to make them very affordable. I will keep everyone posted.
 
Great job! Upgrading the audio system is on my to do list and this would be perfect! I wonder if your mold would work with the 2nd gens.

Hey Renhalt, I see you're not too far away from me. I'd be willing to meet up if you want to test fit so you can sell them for both generations.
 
Last edited:
Renhalt said:
Im working on a mold, i should have a few ready in a fews weeks. Im trying to get the cost down, the materials are fairly inexpensive but they are very labor entensive. When making my own that wasnt an issue, but for resale it really drives up the price so im in the process of shortening the manufacturing time to make them very affordable. I will keep everyone posted.
Click to expand...

Good deal. PM me when you get it done and a price. Thanks
 
Renhalt said:
Im working on a mold, i should have a few ready in a fews weeks. Im trying to get the cost down, the materials are fairly inexpensive but they are very labor entensive. When making my own that wasnt an issue, but for resale it really drives up the price so im in the process of shortening the manufacturing time to make them very affordable. I will keep everyone posted.
Click to expand...


I would love a box.
Please let me know when I can give you money!
:-)
 
I am really liking this design. I have done a few fiberglass boxes in the past and I am thinking this would be cool with a single 12" sub running off an Alpine PDX class D mono amp. I am torn on another 5 channel amp but don't want the stereo install to get carried away (even though it probably will).

My mini cooper S I traded in on this had a PDX5 amp, Focal door speakers, and an alpine 12" sub in the back floor.
 
anyone else want to chime in on tapping into the rear door speaker vice the stock bose sub signal? does anyone know the frequency range going to both speakers? also, how exactly did you tap in? was kinda confused by your post.

---------- Post Merged at 08:04 AM ---------- Previous Post was at 08:00 AM ----------

also, since you only used one signal from the door speaker, did you use speaker wire inputs on your amp? and how did you take one signal (pos, neg) and make it into a left and right, which most subs need?
 
You must log in or register to reply here.
Back
Top