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post #31 of 281 Old 04-03-2014, 06:12 AM
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Originally Posted by Transmaniacon View Post

I wonder if anyone has ever cracked their foundation... eek.gif
My friend txted me when he was watching pacific rim with his 16-46+ And PB10 and told me he thought he was going to smash the window in his living room. It's probably hard to breathe in this guys theater above when it's really crankin.

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post #32 of 281 Old 04-03-2014, 06:15 AM - Thread Starter
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Originally Posted by BNestico View Post

When you say exercise caution when playing your track through powerful subs do you mean more so for the sake of your subs or the sake of your house?

 

In not's case, it was the house that was is jeopardy. Before he made the switch to ported alignment, it would have been the subs that were in danger of bottoming out. It really depends. 


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post #33 of 281 Old 04-03-2014, 06:17 AM
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Would it be a horribly bad idea to play that track through my paired PC12+ and PC12 ultra?

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post #34 of 281 Old 04-03-2014, 06:20 AM - Thread Starter
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Originally Posted by BNestico View Post

Would it be a horribly bad idea to play that track through my paired PC12+ and PC12 ultra?

 

I'm just saying be careful if you have a powerful system. In notnyt's case the biggest risk was knocking stuff off shelves in the rest of the house.


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post #35 of 281 Old 04-03-2014, 06:30 AM
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I bet he has to re-spackle that room every year or so. There's no way you can inflict that kind of pressure on the walls and not have the joints crack.
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post #36 of 281 Old 04-03-2014, 06:30 AM
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Makes me smile, great job on those sub cabinets.
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post #37 of 281 Old 04-03-2014, 06:43 AM
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Awesome Rob!

Can't wait to hear it!
One day for sure...

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post #38 of 281 Old 04-03-2014, 06:55 AM
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I thought the picture was "fake", unbelievable system. Might have to take a day off from work in Manhattan to see your system smile.gif WOW.
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post #39 of 281 Old 04-03-2014, 07:08 AM
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Quote:
Originally Posted by DarthDoxie View Post

Countertop for the screen...I'm intrigued.

If you look around in the DIY screen section there was a lot of talk about using the WilsonArt Designer White laminate material for a screen. I think it originally started in 2006/2007 time frame.

https://www.avsforum.com/f/110/diy-screen-section


There is also a plastic material used in tub surrounds that works really well.
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post #40 of 281 Old 04-03-2014, 07:26 AM
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Nice job!! No need for buttkickers with all the bass in that room..
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post #41 of 281 Old 04-03-2014, 07:43 AM
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UNREAL! I have no words...except VERY well done!
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post #42 of 281 Old 04-03-2014, 07:47 AM
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As I see the pics and read the article, I hear high-pitched angelic-like voices singing "ahhhhhhhhhhhh". Awesome!
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post #43 of 281 Old 04-03-2014, 09:13 AM
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Nice to see more DIY love imagic! DIY FTW.
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post #44 of 281 Old 04-03-2014, 09:35 AM
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I would like to learn more about this DIY screen that he did...

Trying to enjoy the simple things in life.

 

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post #45 of 281 Old 04-03-2014, 09:47 AM
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nyt grills a mean steak too, hope you had some when you were there. smile.gif
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post #46 of 281 Old 04-03-2014, 10:19 AM
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I hope he lives out in the country and his nearest neighbors are at least a couple of miles away. :-)


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post #47 of 281 Old 04-03-2014, 10:25 AM
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Congrats Rob, well deserved!
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post #48 of 281 Old 04-03-2014, 11:10 AM
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I can appreciate Rob's achievement in terms of fulfilling a goal. But whoa, do we have differing sense of aesthetics.

There's been plenty of praise for Rob to bask in so I'm sure it won't hurt to add a slightly more reserved reaction.

I think when I was 20 or so I would have loved to have been subjected to such a system, but at my age (50), I have come to understand the consequences of loud sound exposure over time (or even too loud for a short time) so I do more of a cringe when I see that much firepower aimed at me. It's one thing to check that type of system out occasionally, but I really wonder about being subjected to it on a continual basis. Has Rob given much thought to his hearing down the road?

I guess I just no longer "get it" like I don't get the car-audio thing of trying to achieve so much bass you drown out the stereo of any other nearby car, and make babies cry. See how lame it is getting old? smile.gif
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post #49 of 281 Old 04-03-2014, 11:11 AM
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Quote:
Originally Posted by BNestico View Post

Would it be a horribly bad idea to play that track through my paired PC12+ and PC12 ultra?

Relax, you have nothing to worry about.
Your only running "girly man" 12" drivers. tongue.gif

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post #50 of 281 Old 04-03-2014, 12:04 PM
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Quote:
Originally Posted by BNestico View Post

Would it be a horribly bad idea to play that track through my paired PC12+ and PC12 ultra?

Or through a Marty sub.. Hmm I must try this

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post #51 of 281 Old 04-03-2014, 01:10 PM
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Originally Posted by imagic View Post

In not's case, it was the house that was is jeopardy. Before he made the switch to ported alignment, it would have been the subs that were in danger of bottoming out. It really depends. 
Either I've been misunderstanding an aspect of subwoofer design or this statement is incorrect. Doesn't the internal pressure of a sealed enclosure help limit the excursion of a subwoofer driver? Open air (if that's even the term) design subs such as ported and IB are much more prone to bottoming-out in comparison. Though I guess with those amps he probably could have bottomed them out either way, and perhaps that's what you meant, as he'd have to push the sealed subs MUCH harder to achieve the same SPL as the ported subs.

... I might have answered my own question.
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post #52 of 281 Old 04-03-2014, 01:11 PM
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Question... if you put your seating on a platform, does it increase the tactile sensation or does that really only happen with the subs and the seats are both on the same, connected floor?
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post #53 of 281 Old 04-03-2014, 01:16 PM - Thread Starter
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Quote:
Originally Posted by javanpohl View Post


Either I've been misunderstanding an aspect of subwoofer design or this statement is incorrect. Doesn't the internal pressure of a sealed enclosure help limit the excursion of a subwoofer driver? Open air (if that's even the term) design subs such as ported and IB are much more prone to bottoming-out in comparison. Though I guess with those amps he probably could have bottomed them out either way, and perhaps that's what you meant, as he'd have to push the sealed subs MUCH harder to achieve the same SPL as the ported subs.

... I might have answered my own question.

 

That's the crux of it

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post #54 of 281 Old 04-03-2014, 01:23 PM
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Good googly-goo! WOW! Would love to watch Godzilla or Pacific Rim in your setup!
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post #55 of 281 Old 04-03-2014, 01:30 PM
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Simply awe inspiring!

When you poke around the DIY sub forum, initially you get the impression that single digit low end frequency response is the ultimate goal.
After spending a little more time you start to find examples of very seasoned builders who have reached that goal, realized that it is not the Holy Grail, and have cashed in their multitude of sealed subs for something a little more rational.
Though 8X18" drivers in over 100 cubic feet of ported cabinetry may not fit into that category, it is interesting to see another convert.
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post #56 of 281 Old 04-03-2014, 03:09 PM
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Quote:
Originally Posted by javanpohl View Post

Either I've been misunderstanding an aspect of subwoofer design or this statement is incorrect. Doesn't the internal pressure of a sealed enclosure help limit the excursion of a subwoofer driver? Open air (if that's even the term) design subs such as ported and IB are much more prone to bottoming-out in comparison.

Ported subs actually have the same excursion profile as a sealed sub until the port starts to resonate, at which point excursion begins to decrease (going down in frequency as I describe this). The sealed sub continues to increase excursion while the port reaches max output and the driver experiences minimal excursion during max port output. The port does all the work at that point, the driver just tickles it to keep it resonating. Then as frequency continues to decrease the sealed sub excursion levels off because of the airspring phenomeno you mentioned, while the ported sub completely unloads and excursion goes insane (free air). On top of all this, the additional port output means you can decrease the output of the sub to further minimize excursion. What is necessary, and nyt does this, is to high pass the ported sub to mitigate that free air unloading of the driver below the port resonance. This is where the sealed sub can continue to provide ULF output while the ported sub cannot. For a lot of people (obviously nyt included), this trade off is laughable. For others, it's bandwidth limiting blasphamy. I sit in the sealed camp. I take the bandwidth because I'm not a loudness freak. To each their own smile.gif
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post #57 of 281 Old 04-03-2014, 04:38 PM
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This room looks sinister, in a good way though!

Congrats for HT of the month!
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post #58 of 281 Old 04-03-2014, 04:51 PM
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Very nice.
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post #59 of 281 Old 04-03-2014, 05:13 PM
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Quote:
Originally Posted by javanpohl View Post

Question... if you put your seating on a platform, does it increase the tactile sensation or does that really only happen with the subs and the seats are both on the same, connected floor?

Yes, it will increase, but not as much as adding transducers... and then my couch is high off the ground.
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post #60 of 281 Old 04-03-2014, 05:13 PM
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I only have one word...."scrump-tu-lescent"! smile.gif
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