Hey guys...we need a little rallying here... - Page 373 - AVS Forum
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post #11161 of 11177 Old Yesterday, 02:38 AM
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I wonder how the 15" Eminense Deltalite woofer used in the Fusion-15 compares to the JBL-2226 used instead of the Eminense?

I have all of the parts to build a 2-way active version of the Fusion-15 with the JBL-2226 instead of the Eminense Deltalite.

All I need to complete this project is another iNuke1000dsp (I purchased two but one was DOA with no warranty off craigslist) and to figure out how to setup the active filters. The thing that sucks is that I am broke with barely enough money to pay my bills due to health issues, and I can not afford a mic either. Which is absolutely necessary for help with setting up the active filters, of which, I do not know how to do. (note- LTD02 has offered to help with the active crossover setup with me taking and emailing him the measurements).

So with that being said, it would be really nice to just be able to purchase the 15" Eminense Deltalite woofer, and pre-built Fusion-15 crossover. Any one care to chime in on how much I would be giving up by going with the Fusion-15 kit versus a Seos-15 + DNA-360 + JBL-2226 active setup?
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post #11162 of 11177 Old Yesterday, 05:09 AM
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Have you heard any of the SEOS speakers yet?


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Twelve 10" NHT subwoofer build.
Cloning of a NHT VR-3.
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post #11163 of 11177 Old Yesterday, 06:37 AM
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Quote:
Originally Posted by Martycool007 View Post
I wonder how the 15" Eminense Deltalite woofer used in the Fusion-15 compares to the JBL-2226 used instead of the Eminense?

I have all of the parts to build a 2-way active version of the Fusion-15 with the JBL-2226 instead of the Eminense Deltalite.

All I need to complete this project is another iNuke1000dsp (I purchased two but one was DOA with no warranty off craigslist) and to figure out how to setup the active filters. The thing that sucks is that I am broke with barely enough money to pay my bills due to health issues, and I can not afford a mic either. Which is absolutely necessary for help with setting up the active filters, of which, I do not know how to do. (note- LTD02 has offered to help with the active crossover setup with me taking and emailing him the measurements).

So with that being said, it would be really nice to just be able to purchase the 15" Eminense Deltalite woofer, and pre-built Fusion-15 crossover. Any one care to chime in on how much I would be giving up by going with the Fusion-15 kit versus a Seos-15 + DNA-360 + JBL-2226 active setup?
You won't be giving up much at all.
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post #11164 of 11177 Old Yesterday, 08:12 AM
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You'll probably be gaining by getting a XO that's already worked out and proven.
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post #11165 of 11177 Old Yesterday, 12:35 PM
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Will the preassembled Fusion-15 crossover be available soon, or should I order the Fusion-15's now to make sure I don't miss the boat?

Dude, are you made of leprechauns? Cause that was awesome!


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post #11166 of 11177 Old Today, 03:10 AM
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Quote:
Originally Posted by Erich H View Post
Have you heard any of the SEOS speakers yet?
Yes, I have heard mostly all of them, and yes, I really like the way they sound, and although I can't recall which Seos design uses the Eminense DeltaLite woofer, I was pretty impressed with all of them.
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post #11167 of 11177 Old Today, 03:23 AM
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I just really hate to sell my JBL-2226's as I have doubts that the 15" Eminense Deltalite would be in the same performance category as the 2226, although, I could be wrong. Which is why I want some outside opinions.

If I sell my 2226's for say, $165 each, that would net me $230, and I would also save $200 by not having to buy an additional iNuke1000dsp, and another $100 on the mic. That is a total of $530.

I already have the Seos-15's and DNA-360's, so all that is needed would be the 15" Deltalite's ($175ea x2=$350) , the crossover parts ($60 x 2=$120) the baffles ($18ea x2=$36) terminal cups ($10 ea x2-=$20) wood, glue, and wire (=$100).

That all comes out to over $600 for the pair. Plus, I already have the wood cut for my original design with the 2226 in a tower style enclosure.

I originally assumed that if I sold my JBL-2226's I could build the Fusion-15's cheaper, but once I did some investigating, it appears that was not the case, as it would save me over $100 by sticking to what I originally intended! Oh well!
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post #11168 of 11177 Old Today, 02:22 PM - Thread Starter
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Has Matt posted a distortion measurement for the Fusion 15 yet?

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post #11169 of 11177 Old Today, 02:45 PM
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Quote:
Originally Posted by LTD02 View Post
Has Matt posted a distortion measurement for the Fusion 15 yet?
I've only seen the 2 graphs postet on DIYSG none of which show distortion.
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post #11170 of 11177 Old Today, 03:05 PM - Thread Starter
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found this one, open baffle, 1 meter. not the best circumstances, but the measurement looks pretty good.





http://www.diyaudio.com/forums/subwo...s-horn-30.html
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post #11171 of 11177 Old Today, 04:18 PM
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Measured at 2m, levels set to 90dB (same voltage between the two designs, they also share the same HF network)


Karma-15, Eminence CA15-4:



Fusion-15 Eminence Deltalite 2515:


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post #11172 of 11177 Old Today, 04:25 PM
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Wow distortion went down. Awesome build MTG. Will we be seeing some more videos of these on youtube.


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post #11173 of 11177 Old Today, 04:32 PM
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I guess the distortion "hump" ( centered between 1K to 2K / common to both pics & @ 40db down ), is the Denovo 360 ?

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post #11174 of 11177 Old Today, 07:44 PM - Thread Starter
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about -60db @1m 3rd through most of the woofer's passband. surprisingly good.

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post #11175 of 11177 Old Today, 07:56 PM
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Quote:
Originally Posted by EarlK View Post
I guess the distortion "hump" ( centered between 1K to 2K / common to both pics & @ 40db down ), is the Denovo 360 ?
It seems to match the DNA360's distortion profile, yes.
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post #11176 of 11177 Old Today, 08:12 PM
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That particular compression driver has been through a lot and opened/closed quite a few times so we knew it had some extra distortion in it because of that. It was okay on previous tests.

When MTG90 was here for the Parts Express Audio Fest a few months ago we opened the compression driver a couple times and when put it back together we heard some distortion while listening to the speaker prior to those tests. We were going to open it back up to make sure it was straight or put in a different diaphragm.....but forgot before he left. I told him I'd just send him a new one and a second diaphragm once the new batch came in. That's why the charts hadn't been posted yet.

Sometimes if the back plate is opened up and put back together you can get something around the voice coil, or even have things not line up right, or screws not torqued the same, etc. That's why I make sure to test all of them before shipping.

Back when Zilch was working with waveguides and compression drivers he opened up some different models and when put back together had the same thing happen. So he just opened them back up, removed the diaphragm, put it back in, tighten the screws and all was fine. It's not uncommon, but most that use CD's don't normally open them up.


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Twelve 10" NHT subwoofer build.
Cloning of a NHT VR-3.
2 ACI 15" subwoofers.


Last edited by Erich H; Today at 08:24 PM.
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post #11177 of 11177 Old Today, 08:43 PM - Thread Starter
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also, keep in mind it is a 2 meter measurement, which drops spl by 6db. distortion scales pretty well with spl, so for a 1 m equivalent, "eyeball" distortion about 6db lower than in the picture, so even the peak of that 'hump' is about -45db or less than 1% distortion.

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