AVForums South Africa

DIY & Tutorials => DIY for audio => Topic started by: Robert_E on June 13, 2010, 11:27:50 PM

Title: Dayton Titanic Mk3 15" build
Post by: Robert_E on June 13, 2010, 11:27:50 PM
This is the build thread for the Daytons I bought from Xumbug.

The tuning for these subs where discussed on HTS here:
http://www.hometheatershack.com/forums/diy-subwoofers-general-discussion/28745-llt-airspeed-vs-port-resonance.html#post262038
(There are SPL, port air speed etc graphs in that thread)

The subs are a pair of large sonosubs. 350L and tuned to 17Hz, with 2 150mm ports each.

Started cutting out some discs last weekend but ran into a problem when we discovered that one of the tubes was slightly oval. (No idea how that happened.) So basically the build process started full swing yesterday.



The main tubes are 2m tall, 13mm thick (slightly overkill but that was what I could get) and have an internal diameter of 506mm. The smaller tubes are the ports and have 150mm internal diameters with 5mm walls. Think pink will be used to dampen the top to bottom resonances.
(http://img193.imageshack.us/img193/2074/dsc1848tubesalleen.th.jpg) (http://img193.imageshack.us/i/dsc1848tubesalleen.jpg/)

Here's a shot of me holding the Dayton 15". Also gives some perspective on the size of the tubes:
(http://img822.imageshack.us/img822/8637/dsc1850ekmetdayton15.th.jpg) (http://img822.imageshack.us/i/dsc1850ekmetdayton15.jpg/)

The oval tube I couldn't get back into shape with my full body weight on it (Wouldn't budge at all). So I clamped it between two beams with some ratchet straps. Worked beautifully.
(http://img638.imageshack.us/img638/9366/dsc1847ovalclamp.th.jpg) (http://img638.imageshack.us/i/dsc1847ovalclamp.jpg/)

Here's a shot of Anton's (NoSnipeLimit) router jig, it works well. Btw this is the first time I've done any woodworking besides what we did in school and I love this router. Eats through that MDF like its not even there.
(http://img96.imageshack.us/img96/2736/dsc1845routerjig.th.jpg) (http://img96.imageshack.us/i/dsc1845routerjig.jpg/)

On Saturday I bought 3 clamps thinking they would be enough but you can see clearly by the slight gaps (though filled with glue) where there wasn't any clamp pressure. Here is a shot of the part of the bottom end-cap that fits inside the tube:
(http://img248.imageshack.us/img248/990/dsc1846clampbottomendca.th.jpg) (http://img248.imageshack.us/i/dsc1846clampbottomendca.jpg/)

So this morning I bought some more clamps. Here the top end-cap is drying:
(http://img38.imageshack.us/img38/3403/dsc1853topcapclamping.th.jpg) (http://img38.imageshack.us/i/dsc1853topcapclamping.jpg/)

Here are shots of the top end-cap with the slots for the ports cut 1/2 way through.
(http://img716.imageshack.us/img716/8758/dsc1856ports1stcutdiffe.th.jpg) (http://img716.imageshack.us/i/dsc1856ports1stcutdiffe.jpg/)   (http://img96.imageshack.us/img96/5606/dsc1854ports1stcut.th.jpg) (http://img96.imageshack.us/i/dsc1854ports1stcut.jpg/)

Then cut out the port holes from the top with a diameter slightly less than the internal port diameter. Then cut a piece of the port tubing and put it on the inside of the port holes as a guide to trim these holes the same diameter as the port tubes using a flush trim router bit.
(http://img695.imageshack.us/img695/6057/dsc1858ports2ndcutbefor.th.jpg) (http://img695.imageshack.us/i/dsc1858ports2ndcutbefor.jpg/)

This is the biggest rounding bit I could find that still fit in Anton's router. About 2mm clearance on the sides. When I bought it they said it's a 1 1/8" rounding bit but the final rounding radius I get with it is about 23.5mm
(http://img31.imageshack.us/img31/8144/dsc1864roundingbit.th.jpg) (http://img31.imageshack.us/i/dsc1864roundingbit.jpg/)

Here the external ports have been rounded with this bit:
(http://img31.imageshack.us/img31/8985/dsc1865portsrounded.th.jpg) (http://img31.imageshack.us/i/dsc1865portsrounded.jpg/)   (http://img143.imageshack.us/img143/515/dsc1866portcloseup.th.jpg) (http://img143.imageshack.us/i/dsc1866portcloseup.jpg/)

A test fit if the top end-cap and the port tubes. They will be trimmed to the correct length later on.
(http://img217.imageshack.us/img217/2406/dsc1861topcaponports.th.jpg) (http://img217.imageshack.us/i/dsc1861topcaponports.jpg/)

Some shots of the driver being test fit in the bottom end-cap. The spec sheet for this driver on part-express.com showed the mounting holes where just bigger than 6mm. So I bought some 6mm allen caps and when I tried to fit them the holes in the driver where way way smaller and I had to drill them bigger.
(http://img695.imageshack.us/img695/3498/dsc1869drivertestfit.th.jpg) (http://img695.imageshack.us/i/dsc1869drivertestfit.jpg/)   (http://img824.imageshack.us/img824/9861/dsc1870drivertestfitrea.th.jpg) (http://img824.imageshack.us/i/dsc1870drivertestfitrea.jpg/)  (http://img710.imageshack.us/img710/8504/dsc1851daytonside.th.jpg) (http://img710.imageshack.us/i/dsc1851daytonside.jpg/)

Here's Anton posing next to a mock up assembly. The legs there are just some more cardboard tubes we cut to the correct length.
(http://img229.imageshack.us/img229/2787/dsc1852antonmockup.th.jpg) (http://img229.imageshack.us/i/dsc1852antonmockup.jpg/)

Will continue the build next weekend.  ;D 
Title: Re: Dayton Titanic Mk3 15" build
Post by: ghostinthemachine on June 14, 2010, 01:06:22 AM
That is WOW!!! Keep it coming!
Title: Re: Dayton Titanic Mk3 15" build
Post by: alternativeroute on June 14, 2010, 06:35:35 AM
Titanic!!!! Good going  ;D You could use those as faux support columns in the house...
Title: Re: Dayton Titanic Mk3 15" build
Post by: oradba69 on June 14, 2010, 06:37:07 AM
Eish but it is soooo BIIIGGGGG :o Then again they can be made to look quite good.
Title: Re: Dayton Titanic Mk3 15" build
Post by: NoSnipeLimit on June 14, 2010, 07:44:59 AM
Very fun build, and it's progressing well.  Can't wait for these two beasts to be fired up.
I'm roughly 1.82m tall, I look so small next to the sonotube.
 
Title: Re: Dayton Titanic Mk3 15" build
Post by: Timber_MG on June 14, 2010, 09:18:20 AM
Where did you get hold of Sonotube in SA, please do tell.
Title: Re: Dayton Titanic Mk3 15" build
Post by: xumbug on June 14, 2010, 09:24:37 AM
Hi Robert,

Fab build, keep the pics coming. attention to detail that's the way ;)

Stu
Title: Re: Dayton Titanic Mk3 15" build
Post by: Hennie on June 14, 2010, 01:23:40 PM
Yes, please tell us the source of those tubes!
Title: Re: Dayton Titanic Mk3 15" build
Post by: MetalMilitia on June 14, 2010, 04:38:38 PM
Been waiting a while for this thread  ;D

Good going, can't wait to hear it once completed!
Title: Re: Dayton Titanic Mk3 15" build
Post by: Robert_E on June 15, 2010, 05:15:18 PM
Thanks guys,

RE the tubes: A forum member asked me not to reveal the source and I said I wouldn't.  :-\

I have to add that a cousin of mine that works in the construction industry enquired about these tubes at his supply manager and the guy gave him the contact details for the same company the above mentioned forum member gave me. The local construction industry seems to use steel molds for forming pillars mostly.

These things aren't as available here as overseas but luckily I could work with the sizes I got.

Title: Re: Dayton Titanic Mk3 15" build
Post by: GECO on June 15, 2010, 10:34:06 PM
that is one incredible build. well done

RE the tubes: A forum member asked me not to reveal the source and I said I wouldn't.  :-\

that is not very nice.  >:( one needs to share unless this forum member wants to make money out of this. If they are available I will make it my mission to find the source  ;) I want to do something like this to add some weight to my OB speakers.
Title: Re: Dayton Titanic Mk3 15" build
Post by: xumbug on June 16, 2010, 02:15:33 PM
Guilty as charged :( Jokes aside. The tubes are available from Disaki cores and tubes and they can make any size. I don't mind sharing this info with you good fellows ;) I am giving my trade secrets away for a good cause :)

Stu
Title: Re: Dayton Titanic Mk3 15" build
Post by: GECO on June 16, 2010, 07:00:11 PM
Sorry Stuart. Didn't know I was crossing sword with you and forcing your hand - actually it didn't take to long before I had the information, my brother is in the building trade
been wanting to do something like this for ages.
Title: Re: Dayton Titanic Mk3 15" build
Post by: xumbug on June 16, 2010, 07:26:45 PM
No prob Rudi,

You guys are all in this for the love of things audio, as am I :) It is nice to see others benefit from our dealings and connections, lets face it, Robert for one is doing a great job ;)

Stu
Title: Re: Dayton Titanic Mk3 15" build
Post by: Robert_E on June 16, 2010, 07:32:58 PM
Ja thanks for telling the people that Stuart.

Felt so guilty not being able to share this great find  :)

Title: Re: Dayton Titanic Mk3 15" build
Post by: Timber_MG on June 17, 2010, 07:30:02 AM
The beauty of the tubes is in the stiffness and simplicity of construction.
Title: Re: Dayton Titanic Mk3 15" build
Post by: Robert_E on June 27, 2010, 07:37:02 PM
Last weekend I didn't get to continue the build but this weekend I got some work done.

I'm busy with the second subwoofer's end caps at the moment so no new pics besides this internal port support and flare ring.

It took me about 5 or 6 hours to make this thing...

After cutting and gluing the discs together I routed the outlines of the cutouts on both sides leaving a thin bit of wood in the middle to keep the cut-out pieces in place until I was done with the rounding bit. (To help support the router when I rounded the thin outer rim)
(http://img526.imageshack.us/img526/7339/portsupport1.jpg)

Here is the finished ring with flares.
(http://img189.imageshack.us/img189/5913/portsupport2.jpg)

(http://img149.imageshack.us/img149/3336/portsupport3.jpg)

Incidentally that primer pink discarded subwoofer box is the 'workbench'.... my back is totally shot at the moment.

Title: Re: Dayton Titanic Mk3 15" build
Post by: Robert_E on June 27, 2010, 07:39:50 PM
Does anybody know where I can get the 'feet' turned? The ones that'll be between the base plate and the bottom endcap.
I don't know anybody with a wood lathe.
Title: Re: Dayton Titanic Mk3 15" build
Post by: SeanS on June 27, 2010, 08:50:30 PM
Shees.. thats quite an intricate MDF creation..

I can't imagine you'd need anyones assistance if you can pull that off!! :)
Title: Re: Dayton Titanic Mk3 15" build
Post by: chris on June 27, 2010, 09:14:32 PM
What do they look like, don't want to volenteer if it's out of my league.
Title: Re: Dayton Titanic Mk3 15" build
Post by: NoSnipeLimit on June 28, 2010, 07:48:06 AM
I believe he's looking for 3 straight round stumps of 10cm long, 5-6 cm in diameter.
Title: Re: Dayton Titanic Mk3 15" build
Post by: Timber_MG on June 28, 2010, 08:27:36 AM
I have a metal lathe that should do that trick if you need three cylinders in Pta.
Title: Re: Dayton Titanic Mk3 15" build
Post by: NoSnipeLimit on June 28, 2010, 09:28:33 AM
I have a metal lathe that should do that trick if you need three cylinders in Pta.

Cool, just spoke with Robert, he said he'll need 8 of 11cm x 5cm with 10mm hole through :)
Title: Re: Dayton Titanic Mk3 15" build
Post by: chris on June 28, 2010, 11:42:42 AM
Sounds doable. I'm in Benoni
Title: Re: Dayton Titanic Mk3 15" build
Post by: Robert_E on June 28, 2010, 06:08:42 PM
Thanks guys, pm's sent.
Title: Re: Dayton Titanic Mk3 15" build
Post by: Enigma_2k4 on June 28, 2010, 06:14:21 PM
Oh my goodness, that is some crazy intricate MDF work. WOW, I can;t imagine I;d have the patience to do that. But after seeing this, I really need to get myself a router! :D
Title: Re: Dayton Titanic Mk3 15" build
Post by: Robert_E on July 18, 2010, 07:20:01 PM
Finally woodwork is complete. All that's left is to make the legs but at least all the routing and gluing is finished now.

I just need to figure out how to get a satin black finish like that of my MFW-15. Painting will begin next weekend.
Title: Re: Dayton Titanic Mk3 15" build
Post by: dotVIBE on July 18, 2010, 07:29:04 PM
pics!!!!
Title: Re: Dayton Titanic Mk3 15" build
Post by: Robert_E on July 18, 2010, 07:38:49 PM
Sorry DV, had the camera there but forgot to take more pics :(

Will post new ones next weekend!
Title: Re: Dayton Titanic Mk3 15" build
Post by: JimGore on July 19, 2010, 06:01:11 AM
Quote
I just need to figure out how to get a satin black finish like that of my MFW-15.
Hi Robert,

Are you finising in enamel, or 2K?  If you are using enamel, you can buy satin paint from any good paint shop.  For 2K, you will need to add "matting paste" to the paint.

Alternatively, finish with gloss, then let it cure for a number of weeks.  After fully cured, use Liberon 0000 grade steel wool (from a good woodworking supplier) and some furniture paste wax, and rub the paint job down with the steel wool dipped in the wax.  It gives a beautiful and smooth satin finish.

Ian.
Title: Re: Dayton Titanic Mk3 15" build
Post by: Robert_E on July 19, 2010, 07:36:03 PM
Thanks Ian, will probably need to get what can be handled in the shortest time. Subs need to be completed before the end of the month.
Title: Re: Dayton Titanic Mk3 15" build
Post by: JimGore on July 19, 2010, 07:47:53 PM
2K dries very fast, but can not be brushed.  You will need to spray it.

Ian.
Title: Re: Dayton Titanic Mk3 15" build
Post by: Robert_E on July 19, 2010, 07:51:42 PM
Definitely spraying yes. Will the paint/hardware stores stock that matting paste?
Title: Re: Dayton Titanic Mk3 15" build
Post by: JimGore on July 19, 2010, 07:54:06 PM
You will not be able to get 2K at a hardware store, or you run of the mill paint store.  You will need to go to a specialist automotive paint place, and they will have the matting paste.  If you have difficulty finding it, let me know - I have 5l of the stuff here.  Can always scoop some out for you.
Title: Re: Dayton Titanic Mk3 15" build
Post by: Robert_E on July 19, 2010, 08:02:33 PM
Thanks will try to find some first. If I use satin black enamel will it be easier to get the finish I want? I imagine using the matting paste with 2K would require some trial and error to get the ratios right.

Just hope I can find something on Saturday morning.
Title: Re: Dayton Titanic Mk3 15" build
Post by: JimGore on July 19, 2010, 08:13:09 PM
I would not say so.  The problem with enamel is that it takes hours to dry.  During that time all manner of insects, dust, grass, etc will stick to your nice paint job.

2K is easy with the matting paste.  1:1 ratio for dead flat.  For satin, I would go with 100:50 ratio.

Not likely to find any auto paint places open on a Sat morning tho - they mainly do business with companies, so not much need for them to be open over the weekends.
Title: Re: Dayton Titanic Mk3 15" build
Post by: Robert_E on July 19, 2010, 08:15:04 PM
Ok that's a bit dissapointing re the auto paint places, will see what I can get during the week.
Title: Re: Dayton Titanic Mk3 15" build
Post by: JimGore on July 19, 2010, 08:17:26 PM
Is your paint prep 100% done?  Perfectly smooth, primer applied, etc?
Title: Re: Dayton Titanic Mk3 15" build
Post by: Robert_E on July 20, 2010, 06:43:26 AM
No everything starts Saturday.
Title: Re: Dayton Titanic Mk3 15" build
Post by: oradba69 on July 20, 2010, 02:43:46 PM
I have feet if you are still looking (55mm turned MDF that I use for my collumns in my stands).
Title: Re: Dayton Titanic Mk3 15" build
Post by: Robert_E on July 21, 2010, 06:19:00 PM
Wow thanks Oradba, I'll pm you.
Title: Re: Dayton Titanic Mk3 15" build
Post by: Robert_E on February 13, 2011, 10:44:56 PM
This project was dormant for many months but I did resume it again in the December holidays and finally completed the subs today.


I sanded the wood then applied pink wood primer. Then sanded the primer. Here are the pieces after grey automotive primer was applied.
(http://img217.imageshack.us/img217/5905/allprimed.th.jpg) (http://img217.imageshack.us/i/allprimed.jpg/)     (http://img510.imageshack.us/img510/7500/allprimed2.th.jpg) (http://img510.imageshack.us/i/allprimed2.jpg/)     (http://img97.imageshack.us/img97/5456/portventsprimed.th.jpg) (http://img97.imageshack.us/i/portventsprimed.jpg/)



Then a coat of satin black 2K ( this my dad sprayed for me).
(http://img340.imageshack.us/img340/3977/allblack.th.jpg) (http://img340.imageshack.us/i/allblack.jpg/)     (http://img717.imageshack.us/img717/4407/blackclose.th.jpg) (http://img717.imageshack.us/i/blackclose.jpg/)


I'm really glad someone started the thread about think-pink vs isotherm. After that discussion I went and bought Ecotherm. Here the top section of the tubes have been lined and I'm just about to insert the top endcaps.
(http://img831.imageshack.us/img831/7028/insulationtop.th.jpg) (http://img831.imageshack.us/i/insulationtop.jpg/)   (http://img524.imageshack.us/img524/5879/topcapglue.th.jpg) (http://img524.imageshack.us/i/topcapglue.jpg/) 


And this is why I'm so happy about the think-pink discussion! I had to crawl through the tubes to seal the top caps with silicone. If it had been lined with think-pink that would have been terrible.
(http://img84.imageshack.us/img84/264/workinginsidepipe.th.jpg) (http://img84.imageshack.us/i/workinginsidepipe.jpg/)


Here the 160mm OD, 1 meter long ports have been installed with the internal brace providing support (and flares) to the port tubes.
(http://img35.imageshack.us/img35/2143/portsinside.th.jpg) (http://img35.imageshack.us/i/portsinside.jpg/)     (http://img689.imageshack.us/img689/8712/bottominsulationinstall.th.jpg) (http://img689.imageshack.us/i/bottominsulationinstall.jpg/)


Anton (NoSnipeLimit) applied epoxy to the t-nuts while I was gluing in the insulation in the above image. There is a gap between the port flares and the damping material to allow the ports to breath freely.
(http://img51.imageshack.us/img51/9026/tnutsepoxied.th.jpg) (http://img51.imageshack.us/i/tnutsepoxied.jpg/)
Title: Re: Dayton Titanic Mk3 15" build
Post by: Robert_E on February 13, 2011, 10:57:29 PM
Bottom end-cap installed
(http://img189.imageshack.us/img189/2555/bottomcapinstalled.th.jpg) (http://img189.imageshack.us/i/bottomcapinstalled.jpg/)


View of top-cap with port tubes installed
(http://img714.imageshack.us/img714/7497/topcapwithportsinstalle.th.jpg) (http://img714.imageshack.us/i/topcapwithportsinstalle.jpg/)


Speakon connector installed
(http://img217.imageshack.us/img217/500/speakonconnectorinstall.th.jpg) (http://img217.imageshack.us/i/speakonconnectorinstall.jpg/)


Driver bolted in
(http://img228.imageshack.us/img228/2610/driverinstalled.th.jpg) (http://img228.imageshack.us/i/driverinstalled.jpg/)

Base attached with 4 long bolts made from threaded rod with grippy rubber feet glued on.
(http://img638.imageshack.us/img638/7290/bottomrubbers.th.jpg) (http://img638.imageshack.us/i/bottomrubbers.jpg/)


The leg posts where provided verniet by Oradba69  :)
(http://img571.imageshack.us/img571/4880/footpieceinstalled.th.jpg) (http://img571.imageshack.us/i/footpieceinstalled.jpg/)


Some shots of the completed subs at Anton's place.
(http://img684.imageshack.us/img684/7027/sub2complete.th.jpg) (http://img684.imageshack.us/i/sub2complete.jpg/)    (http://img51.imageshack.us/img51/7099/sub1complete.th.jpg) (http://img51.imageshack.us/i/sub1complete.jpg/)      (http://img710.imageshack.us/img710/6522/bothsubs.th.jpg) (http://img710.imageshack.us/i/bothsubs.jpg/)


Response measurement at Anton's:
(http://img51.imageshack.us/img51/7963/robert3f.th.jpg) (http://img51.imageshack.us/i/robert3f.jpg/)
Really smooth and a natural house curve without any EQ at all. (Includes speakers, xo @ 80Hz)

The subs sound great and have plenty of power. I'm very pleased with the end results  ;D



I would like to thank everyone who assisted me with this build!


Title: Re: Dayton Titanic Mk3 15" build
Post by: Gerhard on February 14, 2011, 06:14:03 AM
Congratulations, they look great!
Title: Re: Dayton Titanic Mk3 15" build
Post by: NoSnipeLimit on February 14, 2011, 07:43:15 AM
Congratulations, they look great!

They sound even better, very clean and detailed ;) Must remember to pick up some popcorn tonight :D
My 1.1meter floor standers look so minute.
Title: Re: Dayton Titanic Mk3 15" build
Post by: JimGore on February 14, 2011, 11:47:55 AM
Nicely done!  They came out looking very professional.

What are the final dimensions?

Regards,
Ian.
Title: Re: Dayton Titanic Mk3 15" build
Post by: Enigma_2k4 on February 14, 2011, 01:48:21 PM
Wow, these are HUGE! Great response curve too! Well done!
Title: Re: Dayton Titanic Mk3 15" build
Post by: DRNB on February 14, 2011, 05:14:11 PM
Very well done you guys! Looks great!

Do I read it correctly? It seems there is very little room interference (apart from room gain) till just below 100Hz? And the sub has quite a response down to around 15Hz? Seems impressive to me  ;)
Title: Re: Dayton Titanic Mk3 15" build
Post by: Robert_E on February 14, 2011, 06:00:23 PM
Thanks for compliments guys!

What are the final dimensions?

~2,22m high, 550mm diameter

Do I read it correctly? It seems there is very little room interference (apart from room gain) till just below 100Hz? And the sub has quite a response down to around 15Hz? Seems impressive to me  ;)

Yes excellent output to just under 15Hz, they're tuned to 16.5Hz but I do not know how much the damping material influences the tuning, doesn't look like a lot.
Title: Re: Dayton Titanic Mk3 15" build
Post by: Robert_E on February 19, 2011, 09:53:58 PM
We got the subs home today. When I started this build I wanted to see if I can at least match the performance of my SVS and MFW subs.

The DIY subs' materials and amplifier together cost me less than what I paid for either one of my other subs.

The performance of the DIY's TOTALLY eclipses the performance of the other subs. Bass in movies is so much crisper/impactful  it's astonishing! The MFW could easily be made to produce port noise above -4dB (On onkyo amp 0 = reference level) in the intro scene of transformers 2. The DIY's large flared ports produce absolutely no audible noise in anything I've listened to yet.

The one scene that managed to bottom them tonight was the Kung Fu Panda - Skad00sh scene. So I will have to get cracking on a high-pass filter. (Below tuning a vented sub's excursion flies through the roof)

I'm very impressed with what can be achieved with what are probably the cheapest 15" home theater drivers you can get.
Title: Re: Dayton Titanic Mk3 15" build
Post by: Shonver on February 20, 2011, 12:33:33 AM
I'm very impressed with what can be achieved with what are probably the cheapest 15" home theater drivers you can get.

Excellent! The first sub I built is still my best (much treasured by my brother-in-law now; he won't let go of it, even though it is not in use). I love seeing a successful outcome! :)
Title: Re: Dayton Titanic Mk3 15" build
Post by: MetalMilitia on February 20, 2011, 07:14:10 PM
Very nicely done Robert!

Glad to hear it outperforms the other 2 subs which are no slouch either
Did you remember the Skadoosh scene after it caused so much havoc on that poor Velodyne of mine  :D
Title: Re: Dayton Titanic Mk3 15" build
Post by: NoSnipeLimit on February 20, 2011, 07:44:57 PM
Very nicely done Robert!

Glad to hear it outperforms the other 2 subs which are no slouch either
Did you remember the Ska****h scene after it caused so much havoc on that poor Velodyne of mine  :D

It's actually one of my favorite scenes :) Its a real killer! That and finding nemo's darla scene.
They're not a slouchy at all, good clean bass, that really gives you a good feel in music and movies.
Title: Re: Dayton Titanic Mk3 15" build
Post by: Robert_E on February 20, 2011, 07:59:35 PM
Very nicely done Robert!

Glad to hear it outperforms the other 2 subs which are no slouch either
Did you remember the Ska****h scene after it caused so much havoc on that poor Velodyne of mine  :D

Thanks.  I never heard the Velodyne, was there when we setup the CV sealed sub. You should make a plan to come and listen to the new subs!
Title: Re: Dayton Titanic Mk3 15" build
Post by: Apocalypse Boy on February 21, 2011, 09:48:09 AM
Where did you get the cores from ?
Title: Re: Dayton Titanic Mk3 15" build
Post by: Robert_E on February 21, 2011, 06:34:04 PM
Where did you get the cores from ?


Disaki cores and tubes in Germiston
Title: Re: Dayton Titanic Mk3 15" build
Post by: Apocalypse Boy on February 21, 2011, 08:18:29 PM
Disaki cores and tubes in Germiston

Spoke to the guy's today, looking for a 200mm ID tube, but the thickest they do is 5mm, not sure it's going to be stiff enough ?
Title: Re: Dayton Titanic Mk3 15" build
Post by: Robert_E on February 21, 2011, 09:11:35 PM
My port tubes are 5mm. They're so tuff I failed cutting them with a jigsaw/metal cutoff machine and in the end we resorted to cutting them with a grinder. I still have some pieces left if you want to see. I used 150 ID and they really are tuff as nails.
Title: Re: Dayton Titanic Mk3 15" build
Post by: NoSnipeLimit on February 22, 2011, 06:58:24 AM
My port tubes are 5mm. They're so tuff I failed cutting them with a jigsaw/metal cutoff machine and in the end we resorted to cutting them with a grinder. I still have some pieces left if you want to see. I used 150 ID and they really are tuff as nails.

;) we tried cutting it with my ryobi table saw and the blade was near stopping, really didn't want  to cut :P
Title: Re: Dayton Titanic Mk3 15" build
Post by: BiZKiT on April 20, 2011, 06:58:11 AM
This is epic! I love it and realy thinking about it now...
Title: Re: Dayton Titanic Mk3 15" build
Post by: Prince on April 28, 2011, 08:02:51 PM
Brilliant job..guys, but the SO would kill me if I made those huge things!!!

:)
Title: Re: Dayton Titanic Mk3 15" build
Post by: Crustyy on June 24, 2011, 09:51:26 AM
Excellent build Robert! I'm now thinking of building a tube and convert my square box sub! What material did you use on the outside? And did you apply it directly to the wood?

Thx for a great post!
Title: Re: Dayton Titanic Mk3 15" build
Post by: NoSnipeLimit on June 24, 2011, 10:32:52 AM
Hey Crustyy,

The material was carpet from one of those car shops, dodgy one in PTA CBD area. 
We used contact adhesive to glue it to the sonotubes, which was a mission because of the sheer size of the thing.
But patience and redoing it a few times to not have any bubbles paid off.
Title: Re: Dayton Titanic Mk3 15" build
Post by: Bullet_GP on November 21, 2011, 02:12:10 PM
Bottom end-cap installed
(http://img189.imageshack.us/img189/2555/bottomcapinstalled.th.jpg) (http://img189.imageshack.us/i/bottomcapinstalled.jpg/)


View of top-cap with port tubes installed
(http://img714.imageshack.us/img714/7497/topcapwithportsinstalle.th.jpg) (http://img714.imageshack.us/i/topcapwithportsinstalle.jpg/)


Speakon connector installed
(http://img217.imageshack.us/img217/500/speakonconnectorinstall.th.jpg) (http://img217.imageshack.us/i/speakonconnectorinstall.jpg/)


Driver bolted in
(http://img228.imageshack.us/img228/2610/driverinstalled.th.jpg) (http://img228.imageshack.us/i/driverinstalled.jpg/)

Base attached with 4 long bolts made from threaded rod with grippy rubber feet glued on.
(http://img638.imageshack.us/img638/7290/bottomrubbers.th.jpg) (http://img638.imageshack.us/i/bottomrubbers.jpg/)


The leg posts where provided verniet by Oradba69  :)
(http://img571.imageshack.us/img571/4880/footpieceinstalled.th.jpg) (http://img571.imageshack.us/i/footpieceinstalled.jpg/)


Some shots of the completed subs at Anton's place.
(http://img684.imageshack.us/img684/7027/sub2complete.th.jpg) (http://img684.imageshack.us/i/sub2complete.jpg/)    (http://img51.imageshack.us/img51/7099/sub1complete.th.jpg) (http://img51.imageshack.us/i/sub1complete.jpg/)      (http://img710.imageshack.us/img710/6522/bothsubs.th.jpg) (http://img710.imageshack.us/i/bothsubs.jpg/)


Response measurement at Anton's:
(http://img51.imageshack.us/img51/7963/robert3f.th.jpg) (http://img51.imageshack.us/i/robert3f.jpg/)
Really smooth and a natural house curve without any EQ at all. (Includes speakers, xo @ 80Hz)

The subs sound great and have plenty of power. I'm very pleased with the end results  ;D



I would like to thank everyone who assisted me with this build!

When you told me about these over the weekend I thought I should have a peek and I have to say "Thumbs up". That looks freakin AWESOME man!

Congrats on a job very well done
Title: Re: Dayton Titanic Mk3 15" build
Post by: Robert_E on November 21, 2011, 02:27:24 PM
Thank you!

You're welcome to come for a demo sometime
Title: Re: Dayton Titanic Mk3 15" build
Post by: Bullet_GP on November 21, 2011, 04:04:28 PM
Thank you!

You're welcome to come for a demo sometime

I will definately take you up on your offer sometime soon ;D