21" Maelstrom Curved Box Build - Page 10 - AVS Forum
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post #271 of 734 Old 05-11-2010, 07:43 AM
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Quote:
Originally Posted by thebland View Post

How would this piece compare to a Terraform XL or Danley DTS 10?

Any frequency resp graphs?

Also, what are the dimensions?

Very cool.

He has not even cut the hole for the driver yet and you expect frequency response graphs?

Chris

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post #272 of 734 Old 05-11-2010, 08:09 AM - Thread Starter
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Quote:
Originally Posted by cinema mad View Post

I agree, and its the most unique looking meal 21" sub out there ..

FWIW I went with 10 Cu ft cabs in sealed alignment for my mael 21" twins
& with 8.6 cu ft cabs for my Mael 18 twins..

On A side note where did you get your magnets from Corock ?

Cheers...



Two 21's and two 18's, WOW you have some serious subwooferage. How do you find the 21 performs in a sealed enclosure?

I got the magnets at Princess Auto. Its a wholesale hardware chain in Canada.
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post #273 of 734 Old 05-11-2010, 08:10 AM - Thread Starter
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Quote:
Originally Posted by BeerParty View Post

He has not even cut the hole for the driver yet and you expect frequency response graphs?


The FR graph is very flat........at 0 decibles.
Post #112 has the FR graph for Exodus Audio's model of Maelstrom 21" in 7 cu ft sealed box.

However, I can answer the dimensions question: 23.5"hx23.5"wx30"d
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post #274 of 734 Old 05-11-2010, 08:27 AM
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Quote:
Originally Posted by BeerParty View Post

He has not even cut the hole for the driver yet and you expect frequency response graphs?

I'm late to the party. I thought this has already been built by someone... Apparently not.

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post #275 of 734 Old 05-11-2010, 08:38 AM - Thread Starter
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No problem Jeff.
It is a first, and with how long its taking me, it may be a last. However, if someone had access to a cnc router they would be able to whip it together a lot quicker than I did. I haven't come across any other builds with a Maelstrom 21" in this small of an enclosure, so I can't compare it to anything.
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post #276 of 734 Old 05-11-2010, 10:02 AM
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Quote:
Originally Posted by thebland View Post

I'm late to the party. I thought this has already been built by someone... Apparently not.

Actually, you are early. But that's OK, I am sure that corock will put out some chips and salsa for us while he finishes up. He has been a excellent host so far...

Chris

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post #277 of 734 Old 05-11-2010, 05:04 PM
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Great build. That thing looks bad ass.

have you seen how plywood edges take stain? especially with all the wood filler on it.

I would drop this thing off at a local auto body shop and have them spray it and throw a clearcoat on top.

if you do stain it, I would pre treat it with wood conditioner.

Either way, it looks phenomenal.
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post #278 of 734 Old 05-11-2010, 07:20 PM - Thread Starter
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I'm going to seal it with epoxy. One coat of epoxy soaks right into the wood and gives it the color I want. Then its going to a local furniture builder to be sprayed with lacquer.
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post #279 of 734 Old 05-11-2010, 09:10 PM - Thread Starter
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One coat of epoxy.





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post #280 of 734 Old 05-11-2010, 09:30 PM
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I like! The untreated ply looks so washed out compared to the epoxied version, hahah.

What is laquer? Just a clear, glossy coat? Orr...

"Measure twice, then measure again. Only then should you even THINK about cutting."

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post #281 of 734 Old 05-12-2010, 08:16 AM - Thread Starter
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lacquer is a type of varnish. It can be colored, clear, glossy, matte, whatever you want it to be. In my case it will be a clear gloss top coat.
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post #282 of 734 Old 05-12-2010, 08:45 AM
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So, no air bubble problems?

It's looking great.
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post #283 of 734 Old 05-12-2010, 08:59 AM - Thread Starter
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the first coat of epoxy soaks right into the wood, then I squeegie off any left on the surface, so there is nothing for air bubble to form in. If I was to do a second top coat that would have bubbles in it. That's why I'm getting lacquer sprayed.

I've experimented extensively with epoxy and I can't defeat the bubble problem. I also tested a little with spray polyurethane and decided this is not the project I want to learn on.

The epoxy gives the wood the color I want, plus it will add some strength and moisture barrier to the plys. That's why I decided to just seal with epoxy instead of staining or tinting.
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post #284 of 734 Old 05-12-2010, 09:44 AM
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Corock,

Very impressive mate. I have been following this all the way through your build and everytime you amaze me. Truely stunning mate. A big pat on the back.

cheers

Graham
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post #285 of 734 Old 05-12-2010, 12:14 PM
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I just looked through every page in this post..I must say this is one of the coolest things I have ever seen....
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post #286 of 734 Old 05-12-2010, 12:58 PM
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Did you say you were going to put a piece of granite on the top? very cool.

Where are you going to put the speaker terminals...it seems a shame to put any holes in that beautiful thing.

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post #287 of 734 Old 05-12-2010, 03:15 PM - Thread Starter
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Yes the plan is to put a granite top on it. I haven't talked to the granite shop owner myself yet, but one of my co-workers is a friend of his and told me I can just pick out a scrap piece and they'll cut and polish it for $60.

I'm just putting standard terminals in the rear bottom like normal. It's the back, which won't be seen, so I'm not sweating it.

My local Paradigm dealer gave me a set of feet like on the Signature series speakers and subs. They're flat black but they polish to a glossy finish.
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post #288 of 734 Old 05-13-2010, 10:48 AM
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Looking good, Corock, looking very good and very straight!
Impressive.
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post #289 of 734 Old 05-13-2010, 02:11 PM
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Quote:
Originally Posted by corock View Post

Yes the plan is to put a granite top on it. I haven't talked to the granite shop owner myself yet, but one of my co-workers is a friend of his and told me I can just pick out a scrap piece and they'll cut and polish it for $60.

I'm just putting standard terminals in the rear bottom like normal. It's the back, which won't be seen, so I'm not sweating it.

My local Paradigm dealer gave me a set of feet like on the Signature series speakers and subs. They're flat black but they polish to a glossy finish.

If you are going to add feet would it be weird to put the terminals on the bottom so you don't see them?
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post #290 of 734 Old 05-13-2010, 03:54 PM - Thread Starter
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Originally Posted by greg_mitch View Post

If you are going to add feet would it be weird to put the terminals on the bottom so you don't see them?

Not a bad idea. I will have to consider that option. I don't think I would have enough clearance even with the feet, but definately something I'm going to have to measure up.
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post #291 of 734 Old 05-13-2010, 05:11 PM - Thread Starter
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All aboard! Choo Choo.

The Paradigm feet turn it from a bad arse sub to a kids wood toy train engine.
Time to reassess.

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post #292 of 734 Old 05-13-2010, 05:40 PM
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Most feet are going to look tiny on that sub. You might want to just mount the feet underneath (of coarse feet other than the Paradigms) so you don't detract from the good looking finish.

If you want something different maybe you can go with outriggers.
I would wonder if they make them big enough though.

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post #293 of 734 Old 05-13-2010, 06:16 PM
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why not just a nice pair of polished chrome or black spiked feet for the bottom classic look as well as functional? haha or with 21" driver...find a nice spot and bolt it to the floor so it doesnt run away...

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post #294 of 734 Old 05-13-2010, 06:20 PM
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i think a 40-60lb slab of granite should keep it fairly planted. You're inviting us over when its done right corock?
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post #295 of 734 Old 05-13-2010, 06:31 PM
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I think these would look sharp on that sub.

http://www.parts-express.com/pe/show...number=240-717

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post #296 of 734 Old 05-13-2010, 06:33 PM
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Quote:
Originally Posted by premiertrussman View Post

I think these would look sharp on that sub.

http://www.parts-express.com/pe/show...number=240-717

such a punny guy....sharp...hahahaha
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post #297 of 734 Old 05-13-2010, 06:35 PM
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IMO, I would use hockey pucks underneath. Or a granite slab, if you want some incredible looks. Im never a fan of anything sharp to be used with > 100lb box. Floors are not going to like it either.

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post #298 of 734 Old 05-13-2010, 06:47 PM
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hmmmm good point...i hadnt really considered that.

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post #299 of 734 Old 05-13-2010, 06:47 PM
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plus ive been dirnking...so theres no telling what i might say

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post #300 of 734 Old 05-13-2010, 09:49 PM - Thread Starter
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Nervous?...Who me?




I had to bring out the big guns to get down 2"




I was right, the cut out weighed 10lbs. The wood portion of the enclosure officially weighs 54lbs.




Here's the first glance at what it looks like with the driver installed.







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