RAD951

To mount it, you have to drill a couple of holes in the sheet metal and they screw it on, thats it. About the air, I have been saying in almost every post. To seal out the air, you have to use clear silicone sealant. I have played my subs,like I said before, without sealing out any air and leaving the cracks without being sealed, and the subs sound very good (no bullsh!t). Thats without even sealing out the air. How can you be telling me that it needs to be completely sealed out to sound good, when you haven't heard it in person. I understand what you mean about sealing out subs,and yes you do have to seal it out to get maximum performance without the sound bottoming out.You simply use clear silicone sealant or use fiberglass, but preferbly silicone because its easy to remove. Fiberglass is more for a permanent use. Have you ever built one before? Do you know the hours it takes to make one? There is alot of labor involved including making sure that each box fits properly. I don't just "cut MDF then cover it in cloth/carpet? Its not the cost of the materials, its the time it takes to build one and skill. I think I am being extremely fair with the price. Go to your nearest CAr audio installers and see how much it will cost to build you a custom design box for your car. The cheapest I found was $275 and and the other was $400 (no bullsh!t). C'mon now be realistic "my944".

mideastmafia

a couple questions..

where does this clear silicon stick to?? the carpet?

secondly.. i have made custom boxes before and you are right, it DOES take time.. BUT, once you have made one and have the dimensions cut out, it shouldnt be hard to duplicate another one. ALSO, do you use any kind of sealing foam around the edges of the box where wood contacts wood?


SHAUN

RAD951

You can use either silicone or that foam stuff sealant. The areas where you will be applying sealeant will be the top horizontal surface, and the bottom horizontal surface around the curve of the torque tube. The sides to not need to be sealed, because I design the box so exact that the carpet of the box and the carped of the body make a tight seal. But you can seal the sides if you want, all you have to do is cut an area along the side to reveal the metal, so there is something for the sealant to stick to. Since I will never decide to put the rear seats back, I am going to use fiberglass all around. But you can Do what ever you choose. But the sides do not need to be sealed,because they form a seal already. Everything else that touches the wood panel is metal so, yes you must seal it.

RAD951

This is the last weekend I will make these subwoofer enclosures! Let me know if you want one before I permanently install mine and won't be able to make anymore! I can hold onto the enclosre until you are ready.

ThE sPaCeCoWbOy

i think fiberglass would be the way to go...i was going to do the same thing....remove the back seat and attempt to fit 3 subs back there but i was going to try fiberglass....

about your design, when the box is sealed to the car, i notice the subs are sharing the same air space, i know my first box i made they fought each other for air....was wondering if you could separate them?

thanks,

no 944 make space go crazy <img src="graemlins/c.gif" border="0" alt="[ouch]" /> <img src="graemlins/jumper.gif" border="0" alt="[jumper]" /> and make space go mad <img src="graemlins/soapbox.gif" border="0" alt="[soapbox]" /> SiNce he spenT 2 WeEKs IN THE FIELD EXPECTING THE CAR AND CHARGER TO BE HOME AND IT HASNT SHOWED <img src="graemlins/cussing.gif" border="0" alt="[grrrrrrr]" />

RAD951

Spacecowboy? I have seen that name before. Do you post on <a href="http://www.roadfly.com?" target="_blank">www.roadfly.com?</a>

Anyway, the only way I know the seperated the subs is to put fiberglass in the middle, where the transmission hump is. But, I wouldn't do it because the subs play louder without being seperated, but if they were seperated, they would play cleaner. For me, I am running my subs mono so I am not going to seperate them because they play on the same beat or tone, they sound good anyway. I am still amazed on how the subs sound without me even sealing out the air or bolting it on.
You don't have to seperate them, they sound just as good. There is plenty of air for both. I would however, put poly fill inside, to make the subs extract optimum performance. But thats up to the subs you are using and your taste.

RAD951

Just want to let people know that I have 3 more subwoofer panel enclosures left. And also I will sell one enclosure plus two MB Quart 10" subs for $175 plus shipping. The subs are the ones pictured in the pictures above. They are new and come with warranty. If anyone interested email me at jfeli@hotmail.com <img src="graemlins/xyxwave.gif" border="0" alt="[bigbye]" />

daly944

i just wanted to say that i picked up one of the boxes, and i love it. i put two ten inch blau overdrive series subs in it, they hit real nice. the box fit perfectly, and i used foam sealant to get a perfect seal. i highly recommend it.

ThE sPaCeCoWbOy

yes i post on roadfly also....i havent been there in awhile....

thanks,
space

jordanolder

Just a note...

You don't have to seal it perfectly to get good sound if the particular speakers you use are tuned to be used in boxes that have ports (holes.)

The leakage will actually act just like a port (the tubes you see on most speakers) and actually improve the sound of most speakers since they are made to be used with ported boxes, not sealed boxes.

It really all depends on the particular speakers that you use and their paramaters (Q, Vas, Xmm, etc.)

To calculate it right you have to determine the volume of the box and the size of the leakage area(port) and then pick a particular set of speakers that will give you the sound you want for this box. Your really looking to get a low drop off frequency and a tight Q (high Q = boomy bass, low Q = too tight, usually Q=.707 is the optimal Q and is whatI like, but its your preference.)

I can supply the formulas for doing the calculations yourself if you're interested.

mideastmafia

a ported box is affective on a bandpass setup that has the cone of the speakers sealed and the back of the speakers ported. this is an open air sealed setup, so leakage wouldnt be as beneficial.

SHAUN