412 CVX Posted November 2, 2011 Report Share Posted November 2, 2011 why? Quote Just say no to Ground Pounder Customs. My temp system build log More box buildssome cars do over 170db with one sub, so clearly my two 12"s can do that in my car, with my knowledge too! look out bitches! I'm with captain stupid. Link to comment Share on other sites More sharing options...
Wicks Posted November 2, 2011 Report Share Posted November 2, 2011 Food for thought and not necessarily true. Wikipedia lists MDF with a density of 700–850 kg/m3. This converts to 0.7-0.85g/cm3. Polycarbonate (lexan) is listed with a density of 1.20–1.22 g/cm3. So lexan is more dense that MDF. If its more dense then I would assume that it should be harder to vibrate and work just as good, if not better, than MDF. Given that its braced and sealed like any normal box would be. Quote This post sent with 100% recycled electrons. 2004 BMW M3Mechman 280A 2 - XS Power XP30001 - XS Power D375 500F of Maxwell SuperCaps (soon to be 1000F) iPadMini2Dash mounted O-scopeAudison bitOne (Remote DRC MP) Highs Amp - PPI Art A404 Hertz HSK130 (HSK165 waiting...) DC Audio DC9.0K 2- DC Audio XL12m2LEGAL - 147.3dB @ 41Hz OUTLAW - 150.2dB @ 45Hz OUTLAW - 145.7dB @ 30Hz JUNE 2014 SOTM WINNER 2014 COLORADO PEOPLE'S CHOICE WINNER SOTM BUILD:http://www.stevemeadedesigns.com/board/topic/141656-wicks-e46-m3-build-bass-turbo-button-and-a-big-new-addition/page-68#entry2802026 Link to comment Share on other sites More sharing options...
412 CVX Posted November 2, 2011 Report Share Posted November 2, 2011 this is definitely some good food for thought. in the beginning of this video, you can see the box the DD's are in. looks like it's completely made of lexan. not sure how you would get everything to seal properly and still keep it looking good on the inside.what kind of glue would you use to bond lexan to lexan, and/or lexan to MDF?i'd assume you could still screw pieces together just like MDF.i guess a little more food for thought is the difference in acoustical qualities of both materials. I bet a sub would sound different in a box made of lexan vs a box made of MDF or birch. Quote Just say no to Ground Pounder Customs. My temp system build log More box buildssome cars do over 170db with one sub, so clearly my two 12"s can do that in my car, with my knowledge too! look out bitches! I'm with captain stupid. Link to comment Share on other sites More sharing options...
Wicks Posted November 2, 2011 Report Share Posted November 2, 2011 There were lots of comments in Trippi's build log with the horizontal lexan box. Lexan should be chemically bonded to other lexan: http://www.eplastics.com/Plastic/Lexan_Polycarbonate_Glue Looks like IPS #40 is the way to go if they use it for aquariums. I saw plenty of comments that lexan shouldn't be screwed at all. Not sure the best way to bond lexan to MDF...? Maybe the same stuff. Quote This post sent with 100% recycled electrons. 2004 BMW M3Mechman 280A 2 - XS Power XP30001 - XS Power D375 500F of Maxwell SuperCaps (soon to be 1000F) iPadMini2Dash mounted O-scopeAudison bitOne (Remote DRC MP) Highs Amp - PPI Art A404 Hertz HSK130 (HSK165 waiting...) DC Audio DC9.0K 2- DC Audio XL12m2LEGAL - 147.3dB @ 41Hz OUTLAW - 150.2dB @ 45Hz OUTLAW - 145.7dB @ 30Hz JUNE 2014 SOTM WINNER 2014 COLORADO PEOPLE'S CHOICE WINNER SOTM BUILD:http://www.stevemeadedesigns.com/board/topic/141656-wicks-e46-m3-build-bass-turbo-button-and-a-big-new-addition/page-68#entry2802026 Link to comment Share on other sites More sharing options...
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