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Discussion Starter #1
Drivers arrived today from Ficar! 4 big ole boxes. Everything seemed to be smartly packed and there was no damage even though one of the boxes had seen some abuse.

My wife is scared and she should be...:hsd:
 

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Discussion Starter #4
Sweet! FedEx tells me that mine will be here on Thursday. Did you ask that the logo not be put on the dust caps? How is the build quality? Are they good for serving salads on the table there?
Ha ha! They would be ginormous salads!

Build quality looks great to me. You can tell they are hand assembled. Honestly, they look over-built. The rubber surrounds are big and thick. I can't imagine one failing. The spider seems super heavy duty. They look like they could handle so much more power than 500W based on the soft parts. Of course, they probably can because I think that is power in IB to hit xmax at 20 Hz.

I did not ask for the logos to be removed (not installed). They just came that way. Maybe Scott is doing this to make the HT crowd happy. Personally, I think the logos are fine and I wouldn't have minded them at all. Of course, I'm doing a manifold install anyway so it wouldn't have mattered.
 

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Discussion Starter #7
Those look amazing, and seriously intimidating. Did your table sag at all with them all sitting on top!? lol

You are going to have some very serious displacement going on with these and I'll be watching to see how the build progresses. Great project!
The motor structure is not huge and the magnets do not appear terribly strong. The efficiency of the system and the power handling is where these seem to rock in an IB config. My WinISD model shows the four of them at over 94 dB 1W/m, which is very sensitive for a subwoofer. The large xmax (30mm) and their innate characteristics mean that a sub(infra) sonic filter is not required at even the lowest frequencies if power is controlled.

I'm actually going to be under-powering them by about 500W but I really don't need another 3dB of headroom with this system. In actual use, I'll probably max out at about 30W apiece and be hitting well over 100dB at the LP. I think I have headroom for full reference at LP but I don't anticipate listening that loud. This will keep woofer displacement way down and distortion very low.

I have never had or heard a system that will compare to the one I'm now building so there is the chance that I will crank the volume louder than ever before because of the clean sound I will be getting. Needless to say, I'm very excited to get the build completed!:D
 

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Discussion Starter #8
Here is a shot of the baffle wall where I am planning the install of two manifolds (areas highlighted). Second pic shows behind the wall.
 

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The motor structure is not huge and the magnets do not appear terribly strong. The efficiency of the system and the power handling is where these seem to rock in an IB config. My WinISD model shows the four of them at over 94 dB 1W/m, which is very sensitive for a subwoofer. The large xmax (30mm) and their innate characteristics mean that a sub(infra) sonic filter is not required at even the lowest frequencies if power is controlled.

I'm actually going to be under-powering them by about 500W but I really don't need another 3dB of headroom with this system. In actual use, I'll probably max out at about 30W apiece and be hitting well over 100dB at the LP. I think I have headroom for full reference at LP but I don't anticipate listening that loud. This will keep woofer displacement way down and distortion very low.

I have never had or heard a system that will compare to the one I'm now building so there is the chance that I will crank the volume louder than ever before because of the clean sound I will be getting. Needless to say, I'm very excited to get the build completed!:D
I have read that people end up using more power/headroom because they are not getting as much "boom" as they do from other designs. I constantly am seeing from past builds that people are crazy impressed with their IB sub, but then often feel that they a missing something that they had from their more conventional subs. I find that hard to believe, but I have read it time and time again.

Maybe distortion or box sound does sound good for explosions to give it that extra boom or chest punch. Explosions definitely do sound different in person because in movies, sound from explosions last for 5+ seconds and in real life, the sound only lasts a fraction of a second. But for that fraction of a second, your guts do get moved around.

I guess we will find out. I intend to have my sub done in a couple weeks. You look to have a ways to go to finish the theater. What is your timeline?
 

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Discussion Starter #10 (Edited)
I'm not sure how these will sound but I doubt I'll be disappointed. The system q with the Fi's should be between .6 @ .7 which is right about where many sealed boxes are designed. I would expect there to be plenty of "slam".

I think some who have been disappointed may have used drivers not suited for IB. For example, if a RE XXX was used the low end would be killer but the sound would lack some punch because the system q would be too low.

Of course, so people do like distortion. ..
 

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Discussion Starter #11
I'm getting the insulation and rc1 inspection tomorrow so hopefully drywall will be installed by the end of the week!

I'm hoping to have things finished before SuperBowl
 

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...I'm hoping to have things finished before SuperBowl
Whoa! Define 'finished'...:devil: Good luck making it in time! I'm enjoying watching your build progress; keep up the nice work, and I can't wait to see how the manifolds turn out :T!
 

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Really, really nice looking. Nothing like my install. I wouldn't let an inspector anywhere near my IB... :)
Agreed, I live in a city that has super strict weird laws about everything. I bet they would force me to run metal conduits from the amp to the subs if they knew the level of juice flowing through the wire.
 

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Discussion Starter #15
Yeah, I will not be installing until after final inspection, just to be "safe". Ha ha.

I will hopefully be cutting baffles for the manifolds this week and will keep the thread updated...
 

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Discussion Starter #16
Well it's been a long time since an update to this thread. Trying to finish a basement, speakers, and subs all at the same time really draws things out. The basement took priority as it was obviously the first thing that needed to get finished. It's at about 98% now with some paint touch ups and a couple small details to finish. I've got one of my three main speakers in a functional state and finally the manifold for one of the subs is hung. The attachments show the front of the baffle wall and a single manifold behind. Subs will be firing through the red grills on either side of the tv (grill on left not finished). I hope to have this manifold populated and functional this weekend! More updates to come soon.
 

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Hey, your progress looks slow...don't ask how I recognize it. :rofl:

Your attention to detail, and quality work, really shows. Nice job! :T:T
I'm sure you'll have an ear to ear grin when completed.
 

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Discussion Starter #18 (Edited)
Finally, finally, finally got both my manifolds installed! :yay2: Sorry in advance for the poor quality phone pics



To dos:
-additional bracing between vertical 2x4 studs along entire wall
-seal all gaps with caulking
-insulate
-apply drywall or plywood facesheet to unfinished side of wall


I'll probably be done sometime this summer, haha!
 

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Discussion Starter #19
Here's some more images with a better camera (still not a great one though)...
 

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