Dayton 12 " Titanic Mk III Enclosure Design?

[bjorno]

HI,

..and our young speaker builders head just exploded..

A T-TQWT will be relatively large and complex. Probably not the best to cut your teeth on.

Not that large if the footprint is the norm and what counts.

500 watts with this driver in a sealed cab. plop it in the corner, crank it up and the cops will be knocking on your door...

SPL ......

...A ported cab looks like it will have serious group delay issues according to WinISD...

..in other words you say there is a serious phase problem that WinISD is reporting. Is it in-band or off-band?

SPLAT

b

[ThunderMonkey]

Hi,
Thanks for all the advice guys, its been really helpful. Although it has been a bit of an information overload so I've had to read quite a few articles to keep up.
After reading all the posts I think my best option would just be to go for the 2 cu ft. sealed enclosure. For a first build it might be a bit silly to dive straight in at the deep end. As long as the sub still packs a punch I'm happy, then sometime in the new year I can replace it with a more complex design.
I'll probably use a cube design for simplicity measuring 400x400x400mm. Although I am slightly unsure how to add bracing to the box, so could anyone explain or post a link on how you're supposed to do it. Also, what kind of bass response will I get from a box like this and is it that much different to a ported design? Thanks

[revboden]

Originally Posted by ThunderMonkey

what kind of bass response will I get from a box like this and is it that much different to a ported design? Thanks

Here are two examples one sealed in 3cf and one vented in 5cf.

bracing... is a Black art...

just kidding, Speaker Building

edit: for both designs I included the dayton amps built in HP at 18Hz.

[ThunderMonkey]

Hi,
Thanks again. So for a sealed box would you recommend a 3 cu ft. box over a 2 cu ft.? Also if I built a ported design I would need the ports to have a right angle in them to fit, so would that affect the required port length?

[revboden]

for a sealed box 2 vs 3 dosen't really matter much, plug them into WinISD, you'll see.

When bending/folding a port/tube/pipe you measure down the center of the bend, this is the functional length and should be the same as calculated.

[johnr66]

Originally Posted by bjorno

HI,

..in other words you say there is a serious phase problem that WinISD is reporting. Is it in-band or off-band?

b

Good question. For the music I listen to, it would be mainly out of band. For the so called music these kids listen to these days...

[ODougbo]

I looked at the Titanic woofer (watch the tutorial on the web page), and gave Parts Express a call, they said sure, it’s great woofer, but also look at the 15" HT, it is also a very good woofer, and less money.

http://www.parts-express.com/pe/showdetl.cfm?Partnumber=295-468&FTR=295-468

That said, a lot of folks like the CSS TRIO12, with a 500 watt plate amp. I almost bought one, but decided what I have now is pretty good.

However, I think my next big woofer is going to be a CSS, TRIO.

[ThunderMonkey]

Hi,
Thanks, I had actually considered getting the Dayton 15" but it would have worked out more expensive since I found a good deal on the 12" titanic. However, now I look at it again it wouldn't be too much more expensive and the performance definitely seems to be a lot better. It really annoys me though how to import these things to the UK costs almost as much as the Woofer itself. But I'm really confused now as the CSS TRIO12 seems to be pretty good too.
Could someone adivse me, if money wasn't an issue, as to which woofer they would recommend out of the 12" titanic, 15" HT and TRIO12. Or any other subs around the price range. I am thinking of settling on the 15" HT just for the sheer size of the thing, but is it really worth the extra cash. Also what would be the recommended box size for a vented 15" HT?
And you're probably right about the music, I don't think I'll really notice the phase problem when I blasting heavy metal out of it.

[revboden]

I've worked with the Dayton's In BR boxes, the rss390hf-4 is very good but wants to be in a very large box ~14ft^3 (396L). The rss315hf-4 will give you the same sound minus a little output in a ~5ft^3 (141L) box.

[ODougbo]

It is tough choosing a speaker now days, amazing what’s out there right now.

I was really close to buying a Titanic, I was going to put it in a double wall, huge vented box. The PE fellow said I may have a better Home Theater sub with the 15"HT.

This is a good site for the TRIO; one of the members forwarded it to me. Regretful about the shipping, that is a drag.

http://www.meniscusaudio.com/