Knock-down enclosures for sealed, down-firing UXL-18 subs. - Page 2 - AVS Forum
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post #31 of 162 Old 06-24-2014, 09:52 PM
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Quote:
Originally Posted by nube View Post
I assume so, but I'm no authority on the subject. Reading here gives a good overview of the subject, but no calculations.
Well maybe its best of both
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post #32 of 162 Old 06-24-2014, 10:08 PM
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Quote:
Originally Posted by chalugadp View Post
Well maybe its best of both
For sure, it can be, but it's unpredictable until measured.
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post #33 of 162 Old 06-27-2014, 12:07 AM
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It can act as a highpass masking distortion and noise. At 4" clearance, there will be a slight benefit of on output on certain area but measurement is require to know for sure.

Last edited by datranz; 06-27-2014 at 02:30 PM.
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post #34 of 162 Old 06-29-2014, 11:11 AM - Thread Starter
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The first enclosure is complete...and I like it!

More pics here.
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post #35 of 162 Old 06-29-2014, 11:30 AM
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If that dumbbell wasn't there I'd say that is one tiny enclosure Those arches look a bit close to the ground, I wonder if that is going to affect the sound.
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post #36 of 162 Old 06-29-2014, 01:22 PM - Thread Starter
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Quote:
Originally Posted by Mrkazador
Those arches look a bit close to the ground, I wonder if that is going to affect the sound.
Dunno, but I will post measurements once the subs are eventually assembled, calibrated, warmed up and let loose.
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post #37 of 162 Old 06-29-2014, 07:12 PM - Thread Starter
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A nice pair! Tentatively shipping later this coming week. Fingers crossed that iST won't be too far behind with the drivers...
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post #38 of 162 Old 06-30-2014, 06:00 AM - Thread Starter
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A couple of questions:
- Do drivers usually come with gaskets, or do the gaskets need to be purchased separately?
- Will fastening a driver to an MDF baffle with screws suffice, or are T-nuts necessary?

Thanks.
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post #39 of 162 Old 06-30-2014, 06:18 AM
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1) Even if they come with gaskets, remove the gaskets and don't use them. Usually, foam gasket tape works best for the job. It's the same stuff that you use to super cheaply seal doors/windows with, and has adhesive one one side.

2) Fastening to MDF will be fine with screws, but best only if you don't plan to remove the drivers very often, because MDF, like womanly parts, falls apart the more screws go in and out of it. It'd also be harder for you to install T-nuts now that the cabs are completely built.
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post #40 of 162 Old 06-30-2014, 10:00 AM - Thread Starter
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Quote:
Originally Posted by nube
1) Even if they come with gaskets, remove the gaskets and don't use them. Usually, foam gasket tape works best for the job. It's the same stuff that you use to super cheaply seal doors/windows with, and has adhesive one one side.
2) Fastening to MDF will be fine with screws, but best only if you don't plan to remove the drivers very often ... [/quote]
Got it, and got it, thanks! My plan is to install the drivers once and never have to touch them again.

As far as screws go, I've read that coarse-thread drywall screws will work. Not sure how well they work for securing the driver (I assume I'd want something that's flat, not tapered, under the screw head.) Thoughts / recommendations?

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Originally Posted by nube
... because MDF, like womanly parts, falls apart the more screws go in and out of it.
Funny! The issue womanly parts can be resolved surgically. Not so sure about MDF.
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post #41 of 162 Old 06-30-2014, 10:07 AM
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Gasket tape and screws will magically appear in your subwoofer[emoji12]
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post #42 of 162 Old 06-30-2014, 11:34 AM
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Wow Chaluga wasted no time putting those cabs together for you. Awesome! You have your amp yet? You should have these things up and running pretty quick as long as the drivers don't take too long.

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post #43 of 162 Old 06-30-2014, 12:48 PM - Thread Starter
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Quote:
Originally Posted by chalugadp View Post
Gasket tape and screws will magically appear in your subwoofer[emoji12]
Damn, you ARE the man!

Thanks!
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post #44 of 162 Old 06-30-2014, 12:53 PM - Thread Starter
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Quote:
Originally Posted by bear123
You have your amp yet?
Not yet. When I hear from Mark @ iST that the parts are in and the two drivers for me are a 'go', I'll order:
- an amp (an NU6000 or NU6000DSP);
- Speakon cables;
- a couple of fans for the mod; and
- misc connectors (such as RCA-to-Speakon, to connect the miniDSP to the amp).

And, locally, I'll pick up some DuraTex.


Last edited by eljaycanuck; 06-30-2014 at 01:16 PM.
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post #45 of 162 Old 07-02-2014, 05:01 AM
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Quote:
Originally Posted by eljaycanuck View Post
And, locally, I'll pick up some DuraTex.
eljay, when you start talking DuraTex...well, now you are really in the DIY/AIY club!

I am looking forward to your thoughts on your new system...
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post #46 of 162 Old 07-02-2014, 05:24 AM - Thread Starter
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Quote:
Originally Posted by laugsbach
eljay, when you start talking DuraTex...well, now you are really in the DIY/AIY club!
Thanks. Although, at this point, I'm the new farmer whose work clothes are still clean and freshly-pressed and whose hands don't have a callus on them.

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I am looking forward to your thoughts on your new system...
Me too. I'll post pics and comments as things proceed.
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post #47 of 162 Old 07-09-2014, 06:28 PM - Thread Starter
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Hooo-ahh, the cabinets have arrived! Pics here.

Exceptional packing job by Donny: Each cabinet was protected by a top and bottom plywood plate, strapping around the sides, thick cardboard edge protectors along each vertical edge, and 2-3 layers of corrugated cardboard all around. Impressive!
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post #48 of 162 Old 07-09-2014, 07:37 PM
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Man that one box took a beating. Did they drop it from 5 feet [emoji15]
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post #49 of 162 Old 07-09-2014, 07:48 PM - Thread Starter
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Where's the fun in delivering parcels unscathed?
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post #50 of 162 Old 07-10-2014, 07:48 AM
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They look great eljay...bring on the UXL-18 drivers!!
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post #51 of 162 Old 07-13-2014, 09:59 AM
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Great thread Eljay! I have always wondered about DIY myself, but I too lack the wood working skills, tools, and patience for it. I am curious to see your impressions once this is all said and done. So far it looks like you are in for a real treat.
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post #52 of 162 Old 07-14-2014, 04:51 AM - Thread Starter
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@laugsbach : Mark (iST) said there was a ~2 week turn-around time on orders, so I should have the drivers before the end of the month.

@FattyMcButterPants : I'm hoping to sand the cabinets and do a first coat of primer this coming weekend. (Such lofty expectations! ) I'll post pics of my distaster handiwork as things progress.
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post #53 of 162 Old 07-19-2014, 06:07 PM - Thread Starter
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The cabinets have been sanded and primed! Pics here

It was actually kinda fun doing the work. (Of course, it helps that chaluga took care of all the coarse sanding before shipping the cabs.)

The Olympic Icon primer went on nice and easy. I bought a gallon and used less than 1/3 of it. From the looks of it, I won't need to do a second coat.

I ordered the DuraTex yesterday, and according to Canada Post tracking it was in Ottawa this morning. I'll pick it up from the local postal outlet by Tuesday and I'll paint the cabs next Fri. or Sat.
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post #54 of 162 Old 07-19-2014, 06:35 PM
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Looking good
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post #55 of 162 Old 07-25-2014, 07:24 PM - Thread Starter
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post #56 of 162 Old 07-25-2014, 07:31 PM
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Quote:
Originally Posted by eljaycanuck View Post
First coat of DuraTex is on. Pics here.
I just finished duratex on mine 2 hours ago !
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post #57 of 162 Old 07-25-2014, 07:32 PM - Thread Starter
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My money is on your results being substantially better than mine...
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post #58 of 162 Old 07-25-2014, 07:46 PM
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My money is on your results being substantially better than mine...
Nope, yours look good. We rarely have guests over and I don't fret if I can see a seam a bit. Oh by the way my third nearfield is awesome. Maybe you make your third by yourself
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post #59 of 162 Old 07-25-2014, 07:57 PM
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Quote:
Originally Posted by eljaycanuck View Post
First coat of DuraTex is on. Pics here.
You have me wishing I had the word working skills for this.... Looks awesome man!
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post #60 of 162 Old 07-25-2014, 08:03 PM
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You have me wishing I had the word working skills for this.... Looks awesome man!
You do man. cmon join the party. Either by yourself, with Erich's Stonehenge or me.
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