scooter99 Posted July 12, 2011 Report Share Posted July 12, 2011 Can someone please help me design a 4th order band pass box for a pair of Hertz HX300D (Dual 4ohm) 12's? I suck at box design, although I can build just about anything, I need a design for it to work. The box I'd like to go in the trunk of my 2006 Honda Civic Ex Sedan. The area I have to work with is 41.25" wide x 15" tall x ?? deep. It has a 30 degree rake on the seat to be most space economical, needs to be a wedge type box. I have a pass through that i cut out of my back seat behind an arm rest. The opening is 11" tall by 6" wide. I can extend that to 13" x 9" (one inch all the way around)but I'd prefer to leave a little space if possible to make a grill to cover the hole. Again, I suck at box design, aside from sealed and anyone can figure out a sealed box, but I am interested in a 4th order utilizing the pass through. I'm going to do a couple of ideas on good ole MS Paint today so that can help someone in what my thoughts are. Hopefully we can get this figured out quickly. Thanks! If you're local to sac and want to take a look at the platform (car) let me know and I'll see what I can work out for time and scheduling. Ok here are a couple of MS Paint Drawings I've made up. You can kind of see what I'm attempting here. I'll also get some pictures in the car this morning and get those posted up as well. Thanks for all help in advance. Overhead View Side Veiw Facial Quote Facebook Page: S99Creations 2006 F250 Lariat Build Link to comment Share on other sites More sharing options...
scooter99 Posted July 12, 2011 Author Report Share Posted July 12, 2011 Maybe it's not a fourth order bandpass I'm thinking of. I'm not sure I just looked up a couple of things and one says what I'm trying to do is considered a fifth order. I don't get it, which is why I'm calling for help. Pics are uploading now. Quote Facebook Page: S99Creations 2006 F250 Lariat Build Link to comment Share on other sites More sharing options...
scooter99 Posted July 12, 2011 Author Report Share Posted July 12, 2011 Ok here's a couple of pictures. From the front seats, view of the back seat with the arm rest down. From the trunk, view of the pass through open, or arm rest down. The duct tape, BTW, is cause it's not finished yet and the metal is sharp as hell! I know, I already cut myself on it. So what do you guys think? What if i just build two sealed enclosures the way the design shows, and then just butt it up to the seat? What would happen as far as sound? Anyone know or care to take a guess. I'm seriously uneducated in this department, box design. Thanks! Quote Facebook Page: S99Creations 2006 F250 Lariat Build Link to comment Share on other sites More sharing options...
BJD3 Posted July 12, 2011 Report Share Posted July 12, 2011 http://www.the12volt.com/caraudio/boxes4.asp The single-reflex band pass enclosure is basically a combination of a sealed and vented enclosure. These can be fairly small enclosures, though larger than a sealed enclosure. They offer great power handling, good low frequency response, but are not as efficient as vented enclosures (top of this page), and are more complex to build. However, when built correctly, these make excellent enclosures and are often used by competitors. This is often referred to as a fifth order enclosure, but it's not. The addition of a crossover makes it a fifth order system. Quote Anti Peel and Seal...lol You may be offended by the above. Don't take it personally, I'm just abrasive. 2002 Buick Park Avenue DC Level 4 M2 12 D2 Car Audio Bargain 1600.1 Eclipse CD3200 ~2 cubes @ 34 hz. Stinger Roadkill Expert Link to comment Share on other sites More sharing options...
scooter99 Posted July 12, 2011 Author Report Share Posted July 12, 2011 (edited) I read that already thanks. That's where I found the other box, the Three Chamber Single Reflex BandPass Enclosurewhich is pretty much what I'm doing, isn't it? Edited July 12, 2011 by scooter99 Quote Facebook Page: S99Creations 2006 F250 Lariat Build Link to comment Share on other sites More sharing options...
RooTxBeeR Posted July 12, 2011 Report Share Posted July 12, 2011 You might have better luck in the Subwoofer/Enclosure forum. Quote On 11/20/2012 at 8:54 PM, AMI CUSTOMS said: Turned mine up today at a light, guy next to me his steering wheel started moving and he looked over at me like I was a magician lol. On 5/9/2012 at 8:45 PM, skittlesRgood said: fuck the plating. look at what the main metal used is. you could buy unicorn blood plated terminals but if its just covering up dog shit, whats the point On 4/10/2013 at 12:26 PM, mrd6 said: I'll admit, half way through sanding that fiberglass in the rain and cold while I was all itchy I was definitely starting to question why i was doing this haha Soon To Be '04 Ford Escape US Alternator 280A Hairpin D4800 Under the Hood (6) XP3000's in Rear 1/0 SHCA & XS Power 4 runs to back TORK2 kit from Tony @ CE Auto Supply Pioneer DEH-80PRS DD AW6.5 (2) per door *Tweeter Unkown* DD SS4a & C3d (2) SCV4000 @ .5Ohm (2) 15" Sundown Zv5 Link to comment Share on other sites More sharing options...
scooter99 Posted July 12, 2011 Author Report Share Posted July 12, 2011 Thanks! Quote Facebook Page: S99Creations 2006 F250 Lariat Build Link to comment Share on other sites More sharing options...
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