[Java Doc]

So this will be my first foray into the world of DIY subs, which has brought up a few questions before I get started.


I plan to build a matching pair into a set of end tables. As a result, these will be down-firing. I have not decided on ported vs sealed yet. I know that sealed will be easier to build, but I'm more than willing to make the attempt with a ported. This leads to a question. Given the size constraint of a reasonable end tabe, I figure I can do either a sealed/ported 15, or a sealed 18 (I think a ported 18 will just be too big). My space is approx 1,500 ft^3, but opens to another den area plus a kitchen. Total volume is probably somewhere around 4,000 ft^3.


It also appears as though there is not a ton of selection when it comes to actual speakers. My total budget for drivers/amp is around $1,000. Some that I am considering are the following:


Dayton Audio RSS390HO-4 15" Reference HO Subwoofer 4 Ohm
http://www.parts-express.com/pe/show...number=295-469


Dayton Audio TIT400C-4 15" Titanic Mk III Subwoofer 4 Ohm
http://www.parts-express.com/pe/show...number=295-420


I would consider something along the lines of the following if the performance jump justifies the cost jump:


TC Sounds Axis 15Q1 15" Quad VC Subwoofer
http://www.parts-express.com/pe/show...number=293-642


One of the SoundSplitter RL series:
http://www.soundsplinter.com/rlp15_s...formation.html


Also perhaps something from Ascendant, or AE.


I am open to just about anything at this point. I've heard that some work better for downfiring than others due to sag, so that needs to be kept in mind as well.


Any help will be appreciated!

 

[Jay1]

You need to come up with some rough dimensions for these end tables you're envisioning. Ported would probably be best if the opening to the other room is large. The HO works well in smaller box's, and the Titanic likes larger ones.

 

[Java Doc]

If I need 7 ft^3 for ported, I could go 24x26x24in whd with 3/4in mdf, which would give 7.2 ft^3. If absolutely needed, I could maybe go 24x24x30in for 8.3 ft^3. This is probably about the biggest I could feasibly go, however if things need to be tweaked slightly, that is possible too.


I'm on my mac now, so I can't run winisd to see the recommended enclosure size, and it's not on the product page for the titantics.


If I can keep the enclosure smaller than this, that would be preferable for WAF purposes, but I'll do what I need to do.

 

[Jay1]



Quote:
Originally Posted by Java Doc /forum/post/20872235


If I need 7 ft^3 for ported, I could go 24x26x24in whd with 3/4in mdf, which would give 7.2 ft^3. If absolutely needed, I could maybe go 24x24x30in for 8.3 ft^3. This is probably about the biggest I could feasibly go, however if things need to be tweaked slightly, that is possible too.


I'm on my mac now, so I can't run winisd to see the recommended enclosure size, and it's not on the product page for the titantics.


If I can keep the enclosure smaller than this, that would be preferable for WAF purposes, but I'll do what I need to do.

The 390HO works well in 6ft3 tuned to 20hz. Given your enclosure requirements, you would have to use a slot port. If you don't go ported the Titanic will be a good option for sealed, and need a 5ft3-3ft3 box, depending on how much power you give it.

 

[Java Doc]

Any love for the other brands I listed? Would any of them work better in a smaller enclosure?


How about the SoundSplinter RLP-18 sealed vs the 390HO ported? I'm not stuck on just the Dayton's, so experience with any brand/model in the 15"-18" range would be helpful.