Exodus Audio Maelstrom-X Pre-Order Thread - Page 7 - AVS Forum

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DIY Speakers and Subs

Kevin Haskins's Avatar Kevin Haskins
06:41 PM Liked: 10
post #181 of 480
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Here are some more...

The small driver is our EX-6.5 midwoofer (6.5" driver) for scale. It doesn't even reach the basket.



Motor up....



And a sideshot with the CD.


TheEAR's Avatar TheEAR
06:48 PM Liked: 12
post #182 of 480
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Simple yet effective. I like.
Willd's Avatar Willd
06:56 PM Liked: 10
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God, I don't think I truly realize how big this will be.

Kevin - I read that you're already testing for the T/S parameters. When will you release the newer parameters?
Kevin Haskins's Avatar Kevin Haskins
07:18 PM Liked: 10
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Quote:
Originally Posted by TheEAR View Post

Simple yet effective. I like.

The Shiva-X, Tempest-X, and Maelstrom-X all will represent our value series. The concept is that they should be about understated looks, yet great performance for the buck. That is what the original Shiva & Tempest where all about and that is what I'm going to continue with those products.

The Sicko will spawn some products that are more expensive, with some performance features we could only do with new tooling (and more money) The Maelstrom is a beast though and will probably represent the best bang for the buck in the product line, assuming the form-factor fits your install.
Kevin Haskins's Avatar Kevin Haskins
07:21 PM Liked: 10
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Quote:
Originally Posted by Willd View Post

God, I don't think I truly realize how big this will be.

Kevin - I read that you're already testing for the T/S parameters. When will you release the newer parameters?

Probably tomorrow, I want to get a sample of four drivers. The first one I measured came out with the BL a little lower, and the mms a little lower. The result in the finished enclosures was a wash. It models exactly like the pre-production parameters.
Spezzy's Avatar Spezzy
07:44 PM Liked: 13
post #186 of 480
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Quote:
Originally Posted by Kevin Haskins View Post

Probably tomorrow, I want to get a sample of four drivers. The first one I measured came out with the BL a little lower, and the mms a little lower. The result in the finished enclosures was a wash. It models exactly like the pre-production parameters.

Will it model well in a 7.5 cu ft sealed enclosure with 2000w~? Or would I absolutely need PRs?
DS-21's Avatar DS-21
09:41 PM Liked: 253
post #187 of 480
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Quote:
Originally Posted by Kevin Haskins View Post

With a little Epoxy I think it would make a good coax. What do you guys think?


I think you really shouldn't make it a Cabasse-style triax with a coincident or concentric tweeter in place of that phase plug.

Why not?

I don't want to spend any more money!!!
Kevin Haskins's Avatar Kevin Haskins
04:13 PM Liked: 10
post #188 of 480
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Quote:
Originally Posted by Willd View Post

God, I don't think I truly realize how big this will be.

Kevin - I read that you're already testing for the T/S parameters. When will you release the newer parameters?

Production parameters are on the site.

http://www.diycable.com/main/product...roducts_id=681
Kevin Haskins's Avatar Kevin Haskins
04:14 PM Liked: 10
post #189 of 480
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Quote:
Originally Posted by Spezzy View Post

Will it model well in a 7.5 cu ft sealed enclosure with 2000w~? Or would I absolutely need PRs?

It works fine in 7.5 ft^3 sealed. That is plenty of power too. The PRs will buy you some extension downward, and more output (down lower at least).
Willd's Avatar Willd
04:19 PM Liked: 10
post #190 of 480
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Much obliged.

Starting to think my 300liter net ported idea is a bit small...certainly not ideal...
Ilkka Rissanen's Avatar Ilkka Rissanen
04:35 PM Liked: 10
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Quote:
Originally Posted by Kevin Haskins View Post

Production parameters are on the site.

http://www.diycable.com/main/product...roducts_id=681

Hmm, too bad that they went that way. 0.707 Qtc sealed wants now ~60% larger enclosure than before.
Willd's Avatar Willd
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Quote:


Hmm, too bad that they went that way. 0.707 Qtc sealed wants now ~60% larger enclosure than before.

Yes, noticed that. Before, looked like 125liters or so was kosher. Now, 200liter+.
Jack Gilvey's Avatar Jack Gilvey
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Wow...bit of a jump from the pre-ordered specs.
Scott Simonian's Avatar Scott Simonian
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post #194 of 480
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Not surprised at all. All the drivers from the 'X' series want really big boxes. Brahma-like almost.

The Maelstrom driver sure is pretty though.
Jack Gilvey's Avatar Jack Gilvey
05:27 PM Liked: 11
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Doesn't really effect anyone looking to LT, anyway, in WinISD Pro the excursion curves are pretty close for a given box/input.
armystud0911's Avatar armystud0911
05:32 PM Liked: 14
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Quote:


Not surprised at all. All the drivers from the 'X' series want really big boxes. Brahma-like almost.

The Maelstrom driver sure is pretty though.

Actually it is a big surprise, the fact that the other drivers in the X series needed big boxes really doesn't mean a thing, you are used to manufacturers who use the same motor platform for all the drivers in the same series. The Maelstrom is a whole different ball game, larger motor, much stronger, longer stroke, ect, if you were to make a Maelstrom off of the same platform as the tempest, it would cost about $200, but would have enormous enclosure requirements.
armystud0911's Avatar armystud0911
05:38 PM Liked: 14
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This driver is now very similar to the RL-p18, a little less exciting, but still a good value, the xmax is sweet, but I don't know if it has the pmax to handle it.

Once again, the market is ripe for an uber 18 with 30+mm xmax and SMALL box requirements, it'd be nice to get LMS size boxes, 3-4.5cubes yielding good sealed performance.
NEO Dan's Avatar NEO Dan
05:39 PM Liked: 16
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Quote:
Originally Posted by Ilkka Rissanen View Post

Hmm, too bad that they went that way. 0.707 Qtc sealed wants now ~60% larger enclosure than before.

Illka,
just what I was thinking.

the olny thing looking like it's gonna hit QTC .577 in a small box is that 21" B&C, but it's $$$ & excursion handicapped.
armystud0911's Avatar armystud0911
05:45 PM Liked: 14
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I have one question, where'd the BL go?
Scott Simonian's Avatar Scott Simonian
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Quote:
Originally Posted by armystud0911 View Post

I have one question, where'd the BL go?

Into that huge box it needs...


Ricci's Avatar Ricci
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Doesn't look bad to me. I don't consider 7ft sealed very big for an 18 and it actually seems to model better for low tuned vented apps now.

If you have to have an 18 with 30mm xmax and small box requirements look into the Treo SSi 18.22. I tried to tell everyone about them long ago. There's also the Treo SSX 18. It likes a bit bigger box, 5ft sealed, but it has a 4" coil. It's more expensive though.
armystud0911's Avatar armystud0911
01:08 PM Liked: 14
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Its big when you consider just a few days ago, it wanted 4 cubes sealed. We had some treo talk on here a few times, they seem like good subs, however, the lack of a online availability the small dealer network and the high cost have put them out of the game for many of us, kind, similar to RE Audio and Audiopulse, (although AudioPulse is still available through PE).

Ultimately, the driver seemed to want larger boxes due to its lower power handling though, with the old specs, I would have wanted to dump 2-3kw into it in these small boxes. With the larger boxes, I feel ok just powering it with 1-2kw. I think we need a 4" VC driver with ~35mm xmax, ~50mm xmech with a solid 3kw power handing priced at about $650 with small box demands, similar to the Acoupower 18, but with a lower qts and fs and not quite as insane of power handling or tooled parts. Kevin wouldn't have too big of a problem doing this, the Maelstrom needs added mass anyway to meet spec, if he just upped the vc size and used a similar style motor, he could easily accomplish this. The issue would become finding a basket that would work with it, 10" spiders would be needed, as well as nearly 4" of total clearance. I suppose if he charged $300 more than the Maelstrom, it might be possible.
auburnu008's Avatar auburnu008
06:10 PM Liked: 27
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So is 8 cubic feet with 2 PR's still look good?
Fatawan's Avatar Fatawan
08:54 AM Liked: 15
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Quote:
Originally Posted by auburnu008 View Post

So is 8 cubic feet with 2 PR's still look good?

I am curious about this as well
Kevin Haskins's Avatar Kevin Haskins
10:01 AM Liked: 10
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You guys are making a mountain out of a mole hill.

I don't have time to do all the simulations and go through the hoopla to post them all today but there is very little difference in the real-life performance from the pre-production parameters to the production ones. The driver is still 100% suitable for all the applications we designed it around. If it wasn't, I wouldn't be selling it.
Looneybomber's Avatar Looneybomber
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Quote:
Originally Posted by auburnu008 View Post

So is 8 cubic feet with 2 PR's still look good?

It all depends on what tuning you want.
anidabi's Avatar anidabi
10:17 AM Liked: 11
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It would be easier to simulate PR boxes if we knew the designed PR driver parameters. But for now, you can simulate the boxes by using creative sound solution PR drivers. At least you can have some idea how will it perform.
TheEAR's Avatar TheEAR
11:33 AM Liked: 12
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Some people need to start using a simple program like WinISD and model subs.

"How will X do with two Y passive radiators? " Well DUH ...enter basic data in WinISD and VOILA.
Krawdad's Avatar Krawdad
12:09 PM Liked: 10
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Quote:
Originally Posted by Kevin Haskins View Post

You guys are making a mountain out of a mole hill.

I don't have time to do all the simulations and go through the hoopla to post them all today but there is very little difference in the real-life performance from the pre-production parameters to the production ones. The driver is still 100% suitable for all the applications we designed it around. If it wasn't, I wouldn't be selling it.

If you are an Ant. Mole hills can be quite mountainous. And real mountains can be impossible to fathom.

Did a quick check on the numbers and even though it wants a bigger box. The production driver looks to perform better in the smaller box then the original specs. They graph almost identical (within 1db from 10hz to 200hz) with the new parameters performing slightly better in identical 4 ft2 boxes from 20hz to 80hz.
Looneybomber's Avatar Looneybomber
12:39 PM Liked: 23
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Quote:
Originally Posted by Krawdad View Post

If you are an Ant. Mole hills can be quite mountainous. And real mountains can be impossible to fathom.

But for a krawdad, a mole hill is nothing too difficult.

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