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Data-Bass version 2 is live - Page 8

post #211 of 244
My manifold has mismatched drivers. Thats no good
post #212 of 244
Now that I think about it, I called RE and they said that they said they just ran out of the dust caps!
post #213 of 244
Quote:
Originally Posted by Ricci View Post

Ok...Some new stuff is added besides the SI HT18
Driver tests...
MTX 9515-44 (This is actually a really nice driver. Too bad the cone has a giant gaudy logo on it. I believe they are discontinued now too. This is what Danley has in their TH50 and 40 of in their Matterhorn)
RE Audio XXX 18D2 current version with overhung voice coil. That is right...
Apparently at some point RE made a running change to the drivers and they appear to no longer be split coil and are instead overhung now. I noticed this a few weeks back when i pulled a driver to test in the sealed enclosure. These apparently are the ones with the RE logo instead of the XXX logo. My last 2or 3 that I bought have the RE logo instead of XXX. I do not know what if anything else may have changed but it appears to be just the coil itself unless there is something done to the motors which I very much doubt. You can judge the differences for yourself by looking at the test data.
Sealed enclosure tests...
MTX 9515-44. Again surprisingly better than I thought it would be. I am going to give this a bigger enclosure to work in and see what happens.
XXX split coil version
XXX overhung coil version (These perform similar in many aspects and quite differently in others. Use the graph overlays to compare. )


VERY interesting find, Josh! I was surprised to see a new driver model show up as "overhung". Waaahhh? They changed it? D'oh! I wonder how that is going to work for you as I know you just bought some more to go with your older ones. Now you have both! Yeesh. It's too bad one can't just request a certain version.
post #214 of 244
Thread Starter 
MmmmHmmm...I seem to have 3 of the overhung RE cone version. If the dust cap is not the indicator of the coil type that is even worse and you will have to visual check each one by lifting up on the cone to the point that the top coil leaves the gap. Not hard to do on these with the compliant suspension and 80lb weight. This is about 1" out or so. If the coil just keeps going it is overhung.
post #215 of 244
I will check one of each tonight and report back. Mine were purchased only a month or two apart, but from different suppliers. It was quite the fiasco. And that was just cuz I thought they were cosmetically different.
post #216 of 244
Quote:
Originally Posted by Ricci View Post

MmmmHmmm...I seem to have 3 of the overhung RE cone version. If the dust cap is not the indicator of the coil type that is even worse and you will have to visual check each one by lifting up on the cone to the point that the top coil leaves the gap. Not hard to do on these with the compliant suspension and 80lb weight. This is about 1" out or so. If the coil just keeps going it is overhung.

I am worried that you have one of your dual opposed subs might have one of each driver in it. frown.gif
post #217 of 244
I think JapanDave got his fairly recently and they have the xxx on the cones
post #218 of 244
Thread Starter 
Quote:
Originally Posted by Scott Simonian View Post

I am worried that you have one of your dual opposed subs might have one of each driver in it. frown.gif

Oh one of them does but to be honest there is so much firepower that it doesnt matter. I barely use maybe 10%. Still irks me though.
post #219 of 244
Humm, I'm going to have to check my 4 xxx drivers I have in storage. I did get all of them at the same time but who knows when the dealer got them.
post #220 of 244
Quote:
Originally Posted by keager View Post

I think JapanDave got his fairly recently and they have the xxx on the cones
Yes mine have the XXX on the cone. I will see if mine are overhung or split coil.
post #221 of 244
I checked my two drivers that aren't currently installed(one xxx and one RE) and, indeed, one is split coil and one is not.mad.gif

Now the question is, should I remove one of the drivers from the installed manifold to switch to make them matcing, or will it matter much?
post #222 of 244
Thread Starter 
I don't think it will matter nearly as much in IB as it would in the 4.5 cube boxes Im using.

Where are you guys located?
post #223 of 244
Quote:
Originally Posted by Ricci View Post

I don't think it will matter nearly as much in IB as it would in the 4.5 cube boxes Im using.
Where are you guys located?
I am in central Oregon.
post #224 of 244
I don't know if it matters, but I have one driver pointed in and one pointed out in my manifiold
post #225 of 244
I'm really impressed by the MTX 9500's measurements. (And thanks for taking your FR measurements out higher, Josh.)

Big throw and well-designed motor/suspension that allows use with highpasses of 150Hz or maybe even a bit higher.

It reminds me a bit of the old JBL/Revel SUB1500. Not cosmetically (the SUB1500 being much classier looking) but performance-wise.
Edited by DS-21 - 12/1/12 at 11:17am
post #226 of 244
Thread Starter 
DS-21
Agreed. I expected a big old inductance hump with that driver until I saw that big aluminum heat sink and found a cut away of the motor. Apparently they put a lot of work into it to make something that was low distortion and not just rugged and loud. Too bad that big MTX Audio logo is on there which gives it that teenage car audio vibe. Of course the W15gti is ugly too. I'm good to keep it around as my 15" for testing various different cabs at least until something even better comes along. Probably going to try it in a very small PR cab next.
post #227 of 244
Quote:
Originally Posted by Ricci View Post

DS-21
Agreed. I expected a big old inductance hump with that driver until I saw that big aluminum heat sink and found a cut away of the motor. Apparently they put a lot of work into it to make something that was low distortion and not just rugged and loud. Too bad that big MTX Audio logo is on there which gives it that teenage car audio vibe. Of course the W15gti is ugly too.

The W15GTi may even be worse-looking than the 9500! (Then again, the new TC Sounds LMS Ultras are tacky-looking, too with that annoying logo.)

The JBL/Revel SUB1500, though, is one of the nicest-looking "classic style" drivers around. ("Classic" as opposed to a more "avant garde" look like the big Aurasound drivers.)




Which reminds me: have you tested a W15GTi yet? If not, I'd send you mine, if I had a box for it. (If someone has a JBL W15GTi shipping box, especially someone around ATL, PM me.) I'm not currently using it and won't be for a while.
Quote:
Originally Posted by Ricci View Post

I'm good to keep it around as my 15" for testing various different cabs at least until something even better comes along. Probably going to try it in a very small PR cab next.

That's a great idea for someone who wants high output potential in a compact box of reasonable efficiency, and is willing to trade off those things for extreme-ULF output.
post #228 of 244
Quote:
Originally Posted by Ricci View Post

Oh one of them does but to be honest there is so much firepower that it doesnt matter. I barely use maybe 10%. Still irks me though.

Understood. Still, I'm sure it would drive me nuts if I were in your position. redface.gif

I'm more annoyed that they replaced the split coil version instead of just making it an option.
post #229 of 244
Quote:
Originally Posted by Scott Simonian View Post

Understood. Still, I'm sure it would drive me nuts if I were in your position. redface.gif
I'm more annoyed that they replaced the split coil version instead of just making it an option.

The question that begs to be answered is "Which is better?". I saw the measurements and they don't look any different in my eyes, but I am no pro.
post #230 of 244
How can we get the Wrecker and/or Lil' Wrecker tested!?!?!
post #231 of 244
Someone's got to build one and send it to Josh, essentially.

I'd still like to see a face off between the THT and F20 on Josh's site.
post #232 of 244
Quote:
Originally Posted by Scott Simonian View Post

Someone's got to build one and send it to Josh, essentially.

I'd still like to see a face off between the THT and F20 on Josh's site.

Ohh Ya! That would be a good one too.

Where does Josh reside?
post #233 of 244
Having heard both, imo they are very close. (f20 and tht). No measurements to back that, just opinion.
post #234 of 244
Quote:
Originally Posted by DS-21 View Post

The W15GTi may even be worse-looking than the 9500! (Then again, the new TC Sounds LMS Ultras are tacky-looking, too with that annoying logo.)

The JBL/Revel SUB1500, though, is one of the nicest-looking "classic style" drivers around. ("Classic" as opposed to a more "avant garde" look like the big Aurasound drivers.)




Which reminds me: have you tested a W15GTi yet? If not, I'd send you mine, if I had a box for it. (If someone has a JBL W15GTi shipping box, especially someone around ATL, PM me.) I'm not currently using it and won't be for a while.
That's a great idea for someone who wants high output potential in a compact box of reasonable efficiency, and is willing to trade off those things for extreme-ULF output.


Those JBL drivers were on my list when I was doing my HT LFE build. PArts Express had them on closeout and I was tempted to go for it, but I did the LMS 5400 instead.


Keep cranking,


Robert
post #235 of 244
Quote:
Originally Posted by robertcharles View Post

Quote:
Originally Posted by DS-21 View Post

***


***

Those JBL drivers were on my list when I was doing my HT LFE build. PArts Express had them on closeout and I was tempted to go for it, but I did the LMS 5400 instead.

My pair of Sub1500's are, alas, still in their boxes. (Stored vertically, of course.) Honestly I should probably sell them, because I can't see a practicable way to fit them into my system. Or, honestly, a need.

My last thought was to use them as "flanking sub" components in my new mains (think "love child of the Pioneer S-3EX and NHT 3.3"), but the depth needed for a side-firing 15" woofer made them visually out of balance. So instead the flanking subs are built around a pair of Aurasound NS12-794-4A's. So it's back to all Aurasound drivers (5, total) for the multisub system.

I briefly had an LMS Ultra, but it didn't seem to give me anything the Maelstrom-X Mk. I it replaced didn't, so I flipped it. (There were great deals on those things last time TC went bankrupt, and prices rose when the supply dried up.) I did later replace the Mael-X with an Aurasound NS18-992-4A, and likewise don't feel it gave me anything sonically that the Mael-X didn't, but I kept the NS18 because it looks a whole lot cooler than any other 18" drive-unit I've seen.



Edited by DS-21 - 1/30/13 at 6:52am
post #236 of 244
I'd like to see Josh test LAB subs and some of Danley's other subs apart from the DTS and more pro sound FLH/Bandpass subs from the likes of Void,Turbo,F1,Martin,d&b and EAW. I would also love to see measurements for the old school Martin 215 Mk2/3 and F2B although that is probably not happening...
post #237 of 244
Ohh yeah. The Aurasound NS18 would be another great choice.
post #238 of 244
I still can't believe we have access to data-bass.com, and for FREE!
It is the best site on the net with regard to subs. I still catch myself going there for no reason other than to compare systems.

So cool! Thanks guys for all your hard work and amazing contribution to the DIY community and subwoofer enthusiasts everywhere!
post #239 of 244
You know what Data-Bass.com is missing?

A test on the AE TD18h+.

biggrin.gif
post #240 of 244
Quote:
Originally Posted by Scott Simonian View Post

You know what Data-Bass.com is missing?

A test on the AE TD18h+.

....And Lilmike's designs.
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