Box approval? Suggestions for next box?

[FeelDaBass]

Hi, I just recently built a new box and it fits much better, but doesn't have quite as much output. I don't know how to post pictures directly, but I will post links to my dropbox pics.

I'm just seeing if there is anything I should have done differently and if a trunk build is better when it's facing the rear of the vehicle. My old box was the "high output" box from RF's manual for my T1D215 15". Dimensions are 30 x 18 x 17 with a port that is 3 x 16.5 and 22 inches long (38 hz). I used this facing the rear.
Picture for that box: https://www.dropbox.com/s/p72njlbc0l9bmdb/2013-03-10%2001.13.21.jpg (Also new box is in the background)

The dimensions of my new box are 40 x 18 x 10 PLUS another baffle and external port and sub. Port is 3 x 12 and about 22 inches long for a tuning of 34 hz. (Net internal volume of 3.1 cu ft.)
Pictures for this new box: https://www.dropbox.com/s/fvxcrtza0vpoqdu/2013-03-09%2021.28.22.jpg This picture is where the box is almost finished.
Finished pic: https://www.dropbox.com/s/xozna419h6bif0w/2013-03-09%2022.57.08.jpg?m (The port is about 2 inches away from the frame of the sub)
Another finished: https://www.dropbox.com/s/2tz39hg090tmyu0/2013-03-09%2022.57.20.jpg

Inside the car: https://www.dropbox.com/s/ik813j43uds9mj6/2013-03-09%2023.29.13.jpg (Disregard the wire mess! Thanks!)

And here are some of the FINAL pics: (Wires hidden behind back seat) https://www.dropbox.com/s/8nad7be7fj4nyd4/2013-03-10%2005.52.09.jpg

After backseat is in: https://www.dropbox.com/s/i15f3qlzr4yi4s4/2013-03-11%2019.57.22.jpg


The new box is more punchy, but only gets loud on half of the notes the other box was able to produce. So overall, probably better SQ. I like it loud however. This new box is not completely sealed off from the trunk though. I just placed clothing around the box for a temporary seal. Don't know if I want to use expanding foam or not yet. Any suggestions?




One more box I've tried is 2 15s in a sealed box. The dimensions were as big as possible for fitting it into the trunk. The half of the box towards the cabin is 10" deep, 38" wide, and 14" tall. Second half of the box was 10" deep, 38" wide, and 18" high. This was close to the biggest I could make it. The 2nd half could have been 40" wide.
Pics: https://www.dropbox.com/s/vp7950rc08rd5qr/2012-12-31%2016.26.15.jpg

https://www.dropbox.com/s/mzcxvupruuwu7e8/2012-12-31%2016.57.17.jpg

Inside the cabin view: https://www.dropbox.com/s/pqeur2nb0ndqakk/2012-12-31%2016.18.26.jpg

Non-complete pic: https://www.dropbox.com/s/7qra8o0zwkonpmg/2012-12-30%2011.52.44.jpg

This one had SQ but I prefered RF's High Output box with just one 15" instead.

[FeelDaBass]

Also, I just updated my signature so the link there has most of the linked pictures.

[Sonic]

Just for clarification is it T1D215 or T115D2 ?

[FeelDaBass]

It is the T1D215, or the newer 1000 watt rms version.

[Joe X]

Your seats won't fold down it seems, sealing off would be impractical to say the least.

[FeelDaBass]

So the best option is a rear facing box then?

[FeelDaBass]

Are there any bandpass enclosures that would be worth looking into and possibly trying? (So it would aim into the cabin through the opening in between the seats)

[larrys95civic]

It's all trial and error on things like this, there is no clear answer on this kind of thing. Only thing you can do is build em, put em in and test em out lol.

[Joe X]

So the best option is a rear facing box then?

A 2:1 4th bandpass would likely need 7-8 cubes net, could be done if the opening size is enough to support proper port area.

A different form factor version of the RF box could be done so it would be less obstructive, if that was the only problem you had with it.

[javierrodriquez]

It would be helpful to all of us if you provide few more details.