UXL-18 Subwoofer driver Group Buy (is now closed out/over/done/fini) !!!! - Page 10 - AVS Forum
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post #271 of 1388 Old 12-28-2013, 02:04 PM - Thread Starter
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Wow!
The Orangemen come back from 18 down to spank the Wildcats!!
I still don't think Cuse is a top 5 team, but it was a nice win today.
Go Orange!
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post #272 of 1388 Old 12-28-2013, 03:08 PM
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That was one heck of a comeback.

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post #273 of 1388 Old 12-28-2013, 04:26 PM - Thread Starter
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post #274 of 1388 Old 12-28-2013, 06:13 PM - Thread Starter
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Quote:
Originally Posted by HuskerOmaha View Post

I think there is plenty of data and users already out there to show this driver is a great buy for HT.

1) is mark still shipping these in heavy corrugated cardboard?

2) is the driver still plug and play ready when shipped or is it done in two pieces like the 5400?

3) anyone have photos of the earlier version like mine vs the new? I don't remember what changed but don't think it was noticeable visually or even measurable?

4) I think I'll be getting 2 more of these and getting an additional FP14k clone. So put me as a "likely" for now.


Okay, Husker...I was able to get the answers to your first two questions above:

The units are shipped whole, in a double thick walled box with about 3 inches of cardboard packing protecting the magnet and 2.5 inches protecting the basket and cone.
(Some questions about the cone and dust cap have been answered in previous posts....however, I am waiting for Mark to pass along a photo of the back plate of a UXL...otherwise, all other photos of the current driver on his website are accurate unless he states differently.)

Hope this info helps you with number 4 above. biggrin.gif
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post #275 of 1388 Old 12-28-2013, 06:42 PM
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When were these changes made, and what was changed?
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post #276 of 1388 Old 12-28-2013, 07:40 PM
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I would be potentially interested in four, but I need some help in deciding which route to take on my upgrade, anyone want to chime in? I'd sure appreciate it!
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post #277 of 1388 Old 12-28-2013, 07:43 PM
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Quote:
Originally Posted by mal01 View Post

I would be potentially interested in four, but I need some help in deciding which route to take on my upgrade, anyone want to chime in? I'd sure appreciate it!
Not.familiar with what u have and what u want.
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post #278 of 1388 Old 12-28-2013, 08:08 PM
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Four daytons in sealed boxes. Looking to replace the drivers with these or build four dual opposed using four more daytons.
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post #279 of 1388 Old 12-28-2013, 08:13 PM
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Are you limited by space or just love sealed sound ?
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post #280 of 1388 Old 12-28-2013, 08:19 PM
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What do you mean?
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post #281 of 1388 Old 12-28-2013, 08:26 PM
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If you have the room ,the larger vented designs give you much more output. Two Marty subs will give you more 16-30hz output then your four sealed enclosures. Jbrown is going with four uxls in ported which will give him over 120dbs.
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post #282 of 1388 Old 12-28-2013, 08:33 PM
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I had two Rythmik FVHP15 and replaced them with the sealed, you think I should go back to ported?
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post #283 of 1388 Old 12-28-2013, 08:41 PM
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It depends upon what is your goal. Are you movies/music ? How big is your room ? How loud do you listen too ?

I went from a hsu vtf15 and added a Marty sub and it made a huge difference . Low bass and mid bass were 6dbs improvement . Now I am adding a vented 8 cu enclosure to replace the hsu permanently and my 3500 ft room will thunder. Ported 8-11 cu ft enclosures typically have 6-8 dbs advantage in 18-30hz over sealed.
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post #284 of 1388 Old 12-28-2013, 08:44 PM
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Here is three sealed 18" si vs ported
7ahu5esu.jpg

Big difference .
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post #285 of 1388 Old 12-28-2013, 09:26 PM
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Geez, not sure what to do now!
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post #286 of 1388 Old 12-28-2013, 09:45 PM
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I'm just a rookie in these parts. You need ltd02 or one of the other heavyweights to chime in. From what I see the real thunder systems have large ported systems or is sealed they have many , many drivers ( 8-18]
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post #287 of 1388 Old 12-28-2013, 10:15 PM
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Quote:
Originally Posted by chalugadp View Post

I'm just a rookie in these parts. You need ltd02 or one of the other heavyweights to chime in. From what I see the real thunder systems have large ported systems or is sealed they have many , many drivers ( 8-18]

Yeh, where is LTD02?
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post #288 of 1388 Old 12-28-2013, 10:24 PM
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Probably enjoying the holidays , sitting in a hot tub at a ski mountain tongue.gif
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post #289 of 1388 Old 12-28-2013, 10:25 PM
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Originally Posted by atabea View Post

Yeh, where is LTD02?

Taking a holiday vacation from AVS!...lol tongue.gif

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post #290 of 1388 Old 12-28-2013, 10:32 PM
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Well earned smile.gif
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post #291 of 1388 Old 12-28-2013, 11:00 PM
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Quote:
Originally Posted by Interspy24 View Post

How would 2 UXL-18s compare to 4 of the new Dayton Ultimax 18s?
I was originally interested in 2 dual-opposed Ultimax setups but now I'm curious how 2 of the UXL18s would compare...

My amp is a Crown XLS5000 which to my understanding should be able to power either setup. Thanks in advance!

Hey. I got that modeled up for ya. Assuming all 4cuft enclosure per driver and what ever power is available from your Crown, I got this.



Red is dual UXL18's at 1,800w each and green is quad Ultimax18 at 1,250w each.

My Dual 18" LLT subs 120dB down to 10hz

 

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post #292 of 1388 Old 12-29-2013, 02:06 AM
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Could someone check my math... Looking to replace my RSS460 18 Dayton Dual-Opp

Here is the drivers reaching Xmax but at roughly double the power difference





Here is the SPL difference - biggest difference is at 10Hz no doubt due to the greater UXL xmax






I find it hard to believe that I need double my AMP power to a superior driver in order to get 2dB extra.
From what I've read here on AVS it seems the QTC in a 230L for the UXL is really low (<0.5) - How will that be a problem?

I need to see about a design to build a Marty-type sub but a vertical one (similar to to sono tube) as I don't have the horizontal space but I could make due will a vertical one with a max 550mmx550mm footprint.
I am thinking about replacing the Daytons and then using one of the Daytons in the Marty-Vertical

Any comments?
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post #293 of 1388 Old 12-29-2013, 03:38 AM
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Quote:
Originally Posted by Nuno C View Post

Could someone check my math... Looking to replace my RSS460 18 Dayton Dual-Opp

Here is the drivers reaching Xmax but at roughly double the power difference





Here is the SPL difference - biggest difference is at 10Hz no doubt due to the greater UXL xmax






I find it hard to believe that I need double my AMP power to a superior driver in order to get 2dB extra.
From what I've read here on AVS it seems the QTC in a 230L for the UXL is really low (<0.5) - How will that be a problem?

I need to see about a design to build a Marty-type sub but a vertical one (similar to to sono tube) as I don't have the horizontal space but I could make due will a vertical one with a max 550mmx550mm footprint.
I am thinking about replacing the Daytons and then using one of the Daytons in the Marty-Vertical

Any comments?

Well according to your graphs you actually have 4 db gain at 10 hz, not 2. That actually seems accurate. Even though it's a superior driver doesn't mean it will get louder with less or equal power. The more moving mass,stiffer the suspension, and stronger motor, more power it will take to make it move.

Dan
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post #294 of 1388 Old 12-29-2013, 04:50 AM
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Hey Nuno C, I'm doing two vertical Marty's with the UXL-18. Of course you will have to wait until Feb for my results.
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post #295 of 1388 Old 12-29-2013, 08:30 AM
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I am currently running one Mael-X 18 in a Easy Button end table Max powered by an Ep-2500 in a 12x15 sealed room. I know going with sealed subs I will lose dbs down low, but by going multiples I will gain some or more than all of that back.
Since the EB end table is tuned to 13 or 16 Hz I know I will be gaining the sub 10 Hz region by going sealed, but at a cost of dbs above 10 or 15 Hz.
And now here is my question, if I replace the Mael with four sealed UXL's and a IPR 7500 is it going to be a big difference in my room? As in pressurization and db? I believe I will love stuff like the HULK scenes where it gets in the single digits, but I'm not willing to sacrifice the most used frequencies which are 20-50 Hz in my opinion to gain single digits.
Scott Simonian, thanks for already answering my other questions, I just want to see what kind of numbers I can expect and the feel compared to what I have.
Blah, I would also like to thank you for putting in your time with all this. I think you're doing a great job, and I am still on the ropes for four UXL's

As a side note, I have a CNC cut easy button max box that I never assembled, I wonder how the UXL models in these?
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post #296 of 1388 Old 12-29-2013, 09:06 AM
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I'll take one for sure as a backup for my current two...and it might find it's way into a new build.

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post #297 of 1388 Old 12-29-2013, 09:19 AM - Thread Starter
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Quote:
Originally Posted by H8TWRK View Post

I am currently running one Mael-X 18 in a Easy Button end table Max powered by an Ep-2500 in a 12x15 sealed room. I know going with sealed subs I will lose dbs down low, but by going multiples I will gain some or more than all of that back.
Since the EB end table is tuned to 13 or 16 Hz I know I will be gaining the sub 10 Hz region by going sealed, but at a cost of dbs above 10 or 15 Hz.
And now here is my question, if I replace the Mael with four sealed UXL's and a IPR 7500 is it going to be a big difference in my room? As in pressurization and db? I believe I will love stuff like the HULK scenes where it gets in the single digits, but I'm not willing to sacrifice the most used frequencies which are 20-50 Hz in my opinion to gain single digits.
Scott Simonian, thanks for already answering my other questions, I just want to see what kind of numbers I can expect and the feel compared to what I have.
Blah, I would also like to thank you for putting in your time with all this. I think you're doing a great job, and I am still on the ropes for four UXL's

As a side note, I have a CNC cut easy button max box that I never assembled, I wonder how the UXL models in these?


H8...you are welcome. I am keeping my fingers crossed that we can achieve the 40 units needed for the special price.

It is fantastic that we have so many helpful people on the Forum with DIY building and modeling experience such as Scott, LTD, and so many others.

I hope that they are able to help with your above questions...and that it results in four UXLs being allotted to you. biggrin.gif
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post #298 of 1388 Old 12-29-2013, 09:36 AM
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Quote:
Originally Posted by Nuno C View Post

I need to see about a design to build a Marty-type sub but a vertical one (similar to to sono tube) as I don't have the horizontal space but I could make due will a vertical one with a max 550mmx550mm footprint.
I am thinking about replacing the Daytons and then using one of the Daytons in the Marty-Vertical

Any comments?

I've been talking to LTD02 myself as I'm going to do a build using four UXL-18's.

http://www.avsforum.com/t/1506201/unnamed-sub-build

I'm looking at either four separate ported enclosures or two tall large ones with each one having two drivers.
I believe ideally you'd want to have around 11cu.ft to maximize performance but after talking with John an 8cu.ft enclosure would still work great with the UXL-18.

So you could easily get away with building something 22"x22" and 36" high, or 550mmx550mmx900mm high.

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post #299 of 1388 Old 12-29-2013, 09:40 AM
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8cu ft is the size I am going to use. 25 x 31 x 24. Cmon join the group tongue.gif
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post #300 of 1388 Old 12-29-2013, 10:26 AM
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Quote:
Originally Posted by chalugadp View Post

8cu ft is the size I am going to use. 25 x 31 x 24. Cmon join the group tongue.gif

Chaluga, is that the 8 cu ft flat pack from DIY soundgroup? If so, then that looks like it's a sealed dual opposed design. If your proposed design is a ported, I guess that mean you are cutting your own wood. What would be the performance difference between a ported 8 cu ft and the regular 11 cu ft Marty?
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