Autruche Posted September 8, 2011 Report Share Posted September 8, 2011 If you are willing to spend the money on 1 inch MDF, then get 3/4 or 1 inch birch plywood (11-13 ply) instead. Stronger and much lighter, way easier to work with too. With what you plan on running, 3/4" MDF with a double baffle and a little bracing in the right spots will be fine. Quote Need Test Tones/Sine Waves? Click Here!My Saab 9000 build1993 Saab 9000 Aero 5spdPioneer - Zapco - Hifonics - Sundown Audio - O2 Audio - RE AudioJust Say No To Rear SpeakersJust Say No To CCA WireReal Men Drive StickHit me up on Facebook, if you want Link to comment Share on other sites More sharing options...
armykyle1 Posted September 8, 2011 Report Share Posted September 8, 2011 bracing never hurts lol Quote TEAM XS POWERTEAM HEAVY HERTZMy build- http://www.stevemeadedesigns.com/board/topic/194454-e46-bmw-build-pos/#entry2914134youtube- http://www.youtube.com/user/armykyle1big build starting Link to comment Share on other sites More sharing options...
VIPmeetSPL Posted September 8, 2011 Report Share Posted September 8, 2011 I would use 3 layers of 1" birch, steel bracing and 3" steel rods every 8" inside cabinet along with a layer of concrete in between each layer and 1" thick of fiberglass inside and use case hardened steel aero port, plastic flexes.. If you can afford it, buy a couple concrete light poles and cut them down as bracing inside the box instead of the steel rods. Also, use titanium 3/4" bolts to mount the subs that way they don't break. Also... what about deadener?? I would use 16-20 layers of Alpha Damp on EVERYTHING in the vehicle and I would look into installing a stripper pole every 2 square feet to minimize flexing... That would be my ideal setup for what your doing... No way I was thinking of a build similar to this. Was gonna start it in my 82 Ford fiesta twin Turbo type chex Quote Link to comment Share on other sites More sharing options...
armykyle1 Posted September 8, 2011 Report Share Posted September 8, 2011 I would use 3 layers of 1" birch, steel bracing and 3" steel rods every 8" inside cabinet along with a layer of concrete in between each layer and 1" thick of fiberglass inside and use case hardened steel aero port, plastic flexes.. If you can afford it, buy a couple concrete light poles and cut them down as bracing inside the box instead of the steel rods. Also, use titanium 3/4" bolts to mount the subs that way they don't break. Also... what about deadener?? I would use 16-20 layers of Alpha Damp on EVERYTHING in the vehicle and I would look into installing a stripper pole every 2 square feet to minimize flexing... That would be my ideal setup for what your doing... No way I was thinking of a build similar to this. Was gonna start it in my 82 Ford fiesta twin Turbo type chex wide body kit right? Quote TEAM XS POWERTEAM HEAVY HERTZMy build- http://www.stevemeadedesigns.com/board/topic/194454-e46-bmw-build-pos/#entry2914134youtube- http://www.youtube.com/user/armykyle1big build starting Link to comment Share on other sites More sharing options...
VIPmeetSPL Posted September 8, 2011 Report Share Posted September 8, 2011 Yup sitting hella flush on 28" giovannas Quote Link to comment Share on other sites More sharing options...
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