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post #541 of 1917 Old 04-01-2014, 09:21 AM
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What's the volume needed for the mid chamber?


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post #542 of 1917 Old 04-01-2014, 09:59 AM - Thread Starter
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Gross volume anything bigger than 12L / 0.45cuft / 750 cu.inch.
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post #543 of 1917 Old 04-01-2014, 10:48 AM
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Don't say things like that! We need a definitive figure sir. wink.gif


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post #544 of 1917 Old 04-01-2014, 11:09 AM
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Tux, what do you recommend lining the woofer compartments with? What do you recommend for the tweeter/mids section...polyfill? How much?


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post #545 of 1917 Old 04-01-2014, 11:21 AM - Thread Starter
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Originally Posted by Erich H View Post

Don't say things like that! We need a definitive figure sir. wink.gif


Gross 14.325L with a standard deviation of 0.125L. Anything out of that spec will sound terrible. cool.gif

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Originally Posted by dtsdig View Post

Tux, what do you recommend lining the woofer compartments with? What do you recommend for the tweeter/mids section...polyfill? How much?

You can use insulation or polyfill. The woofer cabs don't need much. Maybe even some felt on the walls would be good if you wannt get fancy. Keep it away from the ports, but get as much wood covered as you can without stuff the cab to heavy. Insulation tends to be a little more effective at killing reflections, but some people like to avoid it in ported boxes.

In the mid section, put a nice wad in there. Keep if a couple inches away from the drivers, but fill 'er up without packing it tightly.

Hopefully that makes sense.
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post #546 of 1917 Old 04-01-2014, 11:32 AM
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Thanks! Maybe I'll give that "UltraTouch Denim Insulation" that HD carries a try for the woofer boxes. No itchy = Happy Happy smile.gif


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post #547 of 1917 Old 04-01-2014, 11:35 AM - Thread Starter
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That would be a good choice for these I think.
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post #548 of 1917 Old 04-01-2014, 12:49 PM
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Blah, you'll have Elusive 1099's in Syracuse and I'll have them in Rochester! Central New York OWNS the 1099 market! We rule! LOL cool.gif

Yessir...we own snow records and 1099s...one is much more impressive than the other...don't guess for too long. By the way, I stopped off at Nic Tahoe's last week, or whatever they call it now...not quite the same any more??


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post #549 of 1917 Old 04-01-2014, 12:53 PM
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Yessir...we own snow records and 1099s...one is much more impressive than the other...don't guess for too long. By the way, I stopped off at Nic Tahoe's last week, or whatever they call it now...not quite the same any more??

I'm not sure how Nick's used to be, but it's always been nasty in my eyes! LOL. I've actually only been in Rochester for 7 years. I was originally from the "sticks" around Syracuse where mullets are alive and well and sheep are scared.


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post #550 of 1917 Old 04-01-2014, 12:59 PM
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LOL!


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post #551 of 1917 Old 04-01-2014, 01:01 PM
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Hey Blah, I'm kind of a back of the napkin kind of builder. What would you like to know? The best way to cut up a 4x8 sheet? Or the size of the box? Its a fairly basic layout. Essentially 3 chambers. The deviders where the woofer and mids meet. I can try and draw something in Microsoft paint, that's as techy as I get biggrin.gif

Hey, Tux...I'm trying to make something work. If I fall flat on my face, I'll shoot you a PM. Thx!


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post #552 of 1917 Old 04-01-2014, 01:10 PM - Thread Starter
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Ya let me know any questions. I'll do my best. Be patient with me cause sometimes I just don't get it tongue.gif
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post #553 of 1917 Old 04-01-2014, 01:14 PM
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Ditto.


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post #554 of 1917 Old 04-01-2014, 06:17 PM
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The (both) terrible and awesome part is that I'll be building curved cabinets for these too. I kind of set the bar pretty high in my household with my subs and now I'll never be able to "get away" with simple rectangular boxes! redface.gif

I'm looking forward to the build thread.  Especially if they turn out as nice as your subs did.  :)



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post #555 of 1917 Old 04-02-2014, 06:01 AM
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I'm looking forward to the build thread.  Especially if they turn out as nice as your subs did.  smile.gif

Thank you! I definitely learned alot from the first go-around. I'm thinking that this time will go a bit smoother and hopefully faster. Also, I've added quite a few more tools since my sub build. Most importantly, a Makita track saw with 110" worth of guide rails. I'll be able to rip full length in either direction with excellent accuracy. I spent countless hours on my sub builds messing around with fixing the terrible cuts my 20 year old circular saw and DIY guide rail was only capable of making.


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post #556 of 1917 Old 04-03-2014, 07:26 PM
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Today was a good day.

 

I confirmed my theory that it's better to solve minor problems with a Bosch 1380 angle grinder rather than with a screwdriver.

 

My wife went to Boston this evening and won't be back for hours.

 

The kids are now asleep.

 

And the FedEx fairy made this special delivery to my doorstop.

 

+1 to this day.

 



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post #557 of 1917 Old 04-03-2014, 07:30 PM
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Quote:
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Cut sheet for enclosure??...or did Fat already post that in his thread?


I plan to use sketchup to model some cabinet ideas this weekend.  I'll be starting with the basic box and I could convert that to a cut sheet/diagram and share if you think that would be useful.

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post #558 of 1917 Old 04-03-2014, 09:08 PM
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Whoever packaged up that Elusive 1099 did one heck of a nice job! biggrin.gif

Looks like they might have OCPD:

Obsessive Compulsive Packaging Disorder!
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Twelve 10" NHT subwoofer build.
Cloning of a NHT VR-3.
2 ACI 15" subwoofers.

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post #559 of 1917 Old 04-04-2014, 12:49 AM
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I plan to use sketchup to model some cabinet ideas this weekend.  I'll be starting with the basic box and I could convert that to a cut sheet/diagram and share if you think that would be useful.


What cut sheet?....rolleyes.gif


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post #560 of 1917 Old 04-04-2014, 06:59 AM
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Whoever packaged up that Elusive 1099 did one heck of a nice job! biggrin.gif

Looks like they might have OCPD:

Obsessive Compulsive Packaging Disorder!

I felt very guilty taking it all apart.

 

Even the packing materials were precisely cut and packed . At some point I was thinking it would be a shame to throw away all the packaging and that I should take all the packing materials from the three boxes and repackage it in one box and mail it back to you.

 

I hope at least you had someone helping you number all those packing peanuts.  ;) 



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post #561 of 1917 Old 04-04-2014, 07:50 AM - Thread Starter
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What are the final baffle dimensions? iirc Erich had to make it 12.5" and a couple inches different length. I'll draw up a cut sheet if someone can give me this. Thanks.
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What cut sheet?....rolleyes.gif


Just trying to figure out how to give back to the DIY community. Assisting with making some drawings for the 1099 wouldn't be too hard.



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post #563 of 1917 Old 04-04-2014, 08:34 AM
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A cut sheet would really help people out, but I stink with SketchUp. If anyone can redraw the crossover schematic, that might help too.


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post #564 of 1917 Old 04-07-2014, 06:52 AM
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Quote:
Gross volume anything bigger than 12L / 0.45cuft / 750 cu.inch.

Hi Tux!

Using Fatshaft's dimensions from the other thread, the gross internal volume of each chamber ends up being:

(33.25" X 13" X 11") / 3 = 1585 cu. in. (I subtracted the thickness of the top, bottom, and 2 braces from the overall longest dimension), well above the needed 750 cu. in. for the mid chamber.

I am going to cross over to my subwoofer from my 1099 at 80 hz, and at the same time I would like reduce the depth of the 1099 as much as possible. What is the minimum gross internal volume needed for each of the woofer chambers for someone who will definitely be crossing over at 80 hz?

If I reduce the depth by 6", the gross internal volume of each chamber will now be:

(33.25" X 7" X 11") / 3 = 853.4" - still large enough for the mid chamber.

Will that be too small for the woofer chambers?

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post #565 of 1917 Old 04-07-2014, 07:04 AM
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Erich,

Thanks a bunch for making this happen!

The kit arrived safely on Friday, but I only got a chance to open it late yesterday - absolutely fantastic packing job - all parts accounted for and ready to go...smile.gif

This is my first experience using a CNC cut front baffle. The results are sooooooo much better than I could have done with my limited abilities and tools....wink.gif

The whole experience with your company was first class, from the excellent communications to the shipping, packing, and top notch quality work and parts...You are a class act!

I will definitely be back for more...smile.gif

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post #566 of 1917 Old 04-07-2014, 07:13 AM
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I'm glad everything is working out okay. Hopefully we can better document this speaker with a SketchUp drawing for the enclosure and a computer drawn diagram of the crossover so others can build them a little easier.

Still waiting on the CNC company about flat pack cutting for these. Things have been pretty busy lately. biggrin.gif


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post #567 of 1917 Old 04-07-2014, 07:20 AM
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I'm glad everything is working out okay. Hopefully we can better document this speaker with a SketchUp drawing for the enclosure and a computer drawn diagram of the crossover so others can build them a little easier.

Still waiting on the CNC company about flat pack cutting for these. Things have been pretty busy lately. biggrin.gif

Erich, I put my order in for a pair on Friday the 28th. Can you give me an estimate of when I might see these? I know you are super busy... Thanks.


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post #568 of 1917 Old 04-07-2014, 07:26 AM
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The problem is that I don't know who you are......except your screen name of course. smile.gif

I'll be packaging more of them up tomorrow.


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post #569 of 1917 Old 04-07-2014, 08:08 AM - Thread Starter
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A member here did a really nice sketchup and cut sheet for these. It'll be posted soon I think.

Bob, that would "work" but it's not ideal. You'll have to lengthen the ports a few inches, your F3 will move up to about 100hz or higher, and your port resonance will move down into the pass band. I'd be thinking sealed if I were you.That volume is a nice volume for sealed, but you'd have to seal the ports (I suppose you could just wad them full of stuffing and they'd be very close to sealed) and your F3 will be in the 110hz neighbourhood. And certainly the XO could not be less than 80hz for the power you want to apply. If you can go ported, you'll have more XO flexibility.

The bigger you can go on that the better, but I understand there are real world limitations as well. Let me know if you have any more questions are ideas how to make it work.
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post #570 of 1917 Old 04-07-2014, 08:27 AM - Thread Starter
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Thanks to boxazuxu (I spelled that wrong I'm sure) for this! biggrin.gif




JUST DON'T FORGET TO ADD YOUR BLADE KERF BETWEEN THOSE CUTS!!!
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