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(8) Sealed Incriminator Audio Judge 21" build


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#1 lukeamdman

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Posted 24 December 2015 - 05:13 AM

These Incriminator Audio Judge drivers have a custom suspension and had additional mass added (3 dust caps) to lower the Fs from the stock 34hz to 26hz.

 

The eight drivers are going in large dual-opposed boxes that are 24” wide, 22.5” tall, and 55” long (3" thick baffles).  That’s roughly 13.4cu.ft before drivers and bracing.  Stuffed in each cabinet is 6 pillows. 

 

I used 3/4” MDF and quadrupled the baffles.  Securing the drivers to the cabinets are 1.75” stainless steel #10 wood screws.  I could have used bracing that would consume less internal volume, but for this build I chose a simpler/faster approach. 

 

The two drivers in each cabinet are each DVC (1.5ohm per coil) with the coils wired in series and then the two drivers are paralleled, and then two cabinets are wired together in a series.  For the amplification the current plan is a pair of bridged Crest CC5500, which may change later to a couple SP2-12000 or K20s. 

 

Posted later will be frequency response sweeps and SpecLab captures.  

 

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#2 lukeamdman

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Posted 24 December 2015 - 05:13 AM

Incriminator Audio Judge 21"

 

 

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#3 lukeamdman

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Posted 24 December 2015 - 05:13 AM

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#4 lukeamdman

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Posted 24 December 2015 - 05:13 AM

Reserved



#5 chrapladm

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Posted 24 December 2015 - 05:34 AM

Looks great Luke.


"Music is not in the notes, but in the silence between."


#6 Shredhead

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Posted 24 December 2015 - 05:48 AM

Finally got the drivers, cool.  What product do you use for the finish coat? 



#7 lukeamdman

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Posted 24 December 2015 - 05:51 AM

Finally got the drivers, cool.  What product do you use for the finish coat? 

 

Duratex with a textured roller. 



#8 SME

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Posted 24 December 2015 - 06:43 AM

Pardon my totally off-topic question, but why do you reserve the extra posts at the top of the thread when you can edit old ones?  Is there a limit on how long a post is?



#9 Infrasonic

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Posted 24 December 2015 - 07:27 AM

Yes!

 

dhMeAzK.gif

 

I ssoooooo want to know how you like this bass upgrade. :D



#10 Leons

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Posted 24 December 2015 - 09:21 AM

8 I love it... ultra cool!!



#11 vxds11

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Posted 24 December 2015 - 12:52 PM

Looks familiar  B) Good job man!



#12 tuxedocivic

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Posted 24 December 2015 - 02:49 PM

Unreal.
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#13 tuxedocivic

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Posted 24 December 2015 - 02:50 PM

Can I come over this summer :D

#14 Rowan611

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Posted 24 December 2015 - 03:04 PM

Can't wait to come down and help you out/listen. Are you going to try and get them placed?

#15 LaHatte

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Posted 24 December 2015 - 04:11 PM

Have you started your House Repair fund?


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#16 lukeamdman

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Posted 24 December 2015 - 05:48 PM

Pardon my totally off-topic question, but why do you reserve the extra posts at the top of the thread when you can edit old ones?  Is there a limit on how long a post is?

 

There's a limit to how many pictures can be in a single post, even if they're just linked from somewhere else. 



#17 lukeamdman

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Posted 24 December 2015 - 05:50 PM

Can I come over this summer :D

 

Of course!

 

You still haven't heard the mains after the massive EQ changes that were prompted from your first visit. 



#18 lukeamdman

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Posted 24 December 2015 - 05:52 PM

Can't wait to come down and help you out/listen. Are you going to try and get them placed?

 

I had some issues with the gasket tape I had so I had to buy some more yesterday.  Right now I only have one cabinet loaded and I doubt I'll have the other 3 done today.  I woke up with a cold so it's slowing me down, and we have plans for the kiddos today. 



#19 MKtheater

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Posted 24 December 2015 - 05:57 PM

Awesome stuff!  I remember you saying you don't have much room gain?  Is that you? LT will be your friend if not. 



#20 lukeamdman

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Posted 24 December 2015 - 06:05 PM

Awesome stuff!  I remember you saying you don't have much room gain?  Is that you? LT will be your friend if not. 

 

I certainly didn't in my old room, but I've never tried sealed in the new room.

 

The new room is smaller, has a concrete wall directly behind the LP, and the LP is on a wood riser.  I'm really hoping that combo will equate to something below 15hz this time around. 






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