I wouldnt say its free air.it is too small of an area plus I do have spacers in there where I put the top onto and I also put in weather stripping against spacers.

I never liked the sound of a single sub even if it did have DVC. I had a single JL 10 in my 2g Eclipse and I wasn't satisfied so installed a second. On the Z I made another board added a send hole and added another 8" Type R. I am now actually happy with the sound and the way it looks. Carpet also helps a ton even though you don't see it.. I just put the Alpine Head Unit on "Rock" made 3 slight adjustments to the equalizer and done.

For a while I thought about taking out the Polk DB woofers in the doors and install 6.75 Kicker "subs" there. I have one in another car and thought it was a rich Midbase-Midrange woofer plus they can handle more power. Never know might do it in the future....

your box not being sealed 100% definitely had an effect on power handling, as well as overall performance. even the slightest air leak can ruin a perfect speaker. I definitely would not call this configuration free air by any means, though.

True, to an extent. Sub-bass frequencies are non-directional to a point, but they definitely contribute to your soundstage. A truly exceptional subwoofer will get lost in the front stage, and blend seamlessly with it. A mediocre subwoofer cant do that regardless of tuning/ time alignment..... If you can tell where your subwoofer is located in your car, it needs work. (if you are anal about it, that is) most are not. I am.

What about applying Dynamat inside the enclosure to make it sealed? I have a lot of that stuff just sitting around

The Box should be a solid sealed box with correct cu ft space inside (if your box is designed to be sealed and not a bandpass or ported, each enclosure type has there own specs to follow for best performance). You should try and get it as close to the manufacture's specs as possible. A great speaker will sound like crap in a junk box. You can add some pillow stuffing in the box to slow the air and change the sound some. I never heard of putting sound deadener in a sub enclosure.

YzGyz

ok back to work

finally done. This was trial and error. Glad I have a table saw that does angles...Attachment 105425

i have the top off so people can see what it looked like. Sloppy sealing but I built it in the car. It would be a bugger to remove. Now I am going to go rest. My hamstrings are cramping up.....

So for those that mounted subs in this space, where did you mount the amp(s)?

I mounted mine under the passenger seat and ran the wiring up under the panel under the rear speaker, right next to the outside of the car. I just poked it up there and shoved it around until it came out the other side into the trunk.

This is an awesome post as I was thinking about doing this as well!!! Thank you for this info

Thread revival
 

So its been years...hopefully by now someone has perfected this style of sub box...right?

Would love to have one of these.

I know it's been a while, but do you still have this setup? If so, ever get around to dimensions or specs?

I know you know you’re responding to an old post but you might not realize you’re asking a question to someone who hasn’t been active for 5 years. If you click on their name you can see this for yourself…just trying to be helpful as I know your new around here. Cheers!


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