Dual 18" SI enclosure for nearfield use - AVS Forum
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post #1 of 70 Old 07-20-2014, 07:36 AM - Thread Starter
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Dual 18" SI enclosure for nearfield use

Hi guys,

I've been wanting to build out a nice nearfield enclosure since I moved my other 8 SIs D4s up front behind my screen wall. This box, which will be placed directly behind my second row, will be coupled to my riser. This will be the first 'nearfield experimentation' phase, and next will be building out a few side enclosures for the first row. Pretty basic sealed enclosure, I made it plenty narrow as to not get in the way and tall enough to fire directly into my back seats. I'll be powering with one channel with either my Peavey IPR7500 or Inuke6000 DSP.

Google sketchup, including dimensions:




Cuts and dry fitment:







Should be gluing her up in the next few days. Finishing will be duratex to match my other gear - I love that stuff!

Last edited by Gorilla83; 07-20-2014 at 07:40 AM.
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post #2 of 70 Old 07-20-2014, 07:38 AM
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I will be hooking up a nearfield 15" sub next week to go with my two up front. Trying to get better feel at lower volumes. Will be seeing how it works for you.
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post #3 of 70 Old 07-20-2014, 09:10 AM
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Quote:
Originally Posted by chalugadp View Post
I will be hooking up a nearfield 15" sub next week to go with my two up front. Trying to get better feel at lower volumes. Will be seeing how it works for you.
Port it a tad lower (15hz)

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post #4 of 70 Old 07-20-2014, 04:16 PM - Thread Starter
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Quote:
Originally Posted by chalugadp View Post
I will be hooking up a nearfield 15" sub next week to go with my two up front. Trying to get better feel at lower volumes. Will be seeing how it works for you.
Good deal. What are you using for EQ?
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post #5 of 70 Old 07-20-2014, 04:18 PM
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Good deal. What are you using for EQ?
Inuke3000dsp. Heard the funk 18.2c yesterday and coming home to my sub's is a bit of a letdown.
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post #6 of 70 Old 07-22-2014, 01:31 PM
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Dude, whats next? Dual SI18 Headphones for each seat?
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post #7 of 70 Old 07-22-2014, 01:55 PM
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Quote:
Originally Posted by Gorilla83 View Post
Hi guys,

I've been wanting to build out a nice nearfield enclosure since I moved my other 8 SIs D4s up front behind my screen wall. This box, which will be placed directly behind my second row, will be coupled to my riser. This will be the first 'nearfield experimentation' phase, and next will be building out a few side enclosures for the first row. Pretty basic sealed enclosure, I made it plenty narrow as to not get in the way and tall enough to fire directly into my back seats. I'll be powering with one channel with either my Peavey IPR7500 or Inuke6000 DSP.

Google sketchup, including dimensions:




Cuts and dry fitment:







Should be gluing her up in the next few days. Finishing will be duratex to match my other gear - I love that stuff!
Oh that should be a nice contribution. Once you feel it there's no going back and you've got one of the big issues covered out the gate. A lot of times it's hard to eliminate the feel that the bass is originating behind you depending on how close the subs are up on you. You're stacked up front so that's a huge first step. The only other factor might depend on how high you xover. Good times await Btw, I can see you're having fun with the CNC. NICE!
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post #8 of 70 Old 07-22-2014, 07:18 PM
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Quote:
Originally Posted by gpmbc View Post
Oh that should be a nice contribution. Once you feel it there's no going back and you've got one of the big issues covered out the gate. A lot of times it's hard to eliminate the feel that the bass is originating behind you depending on how close the subs are up on you. You're stacked up front so that's a huge first step. The only other factor might depend on how high you xover. Good times await Btw, I can see you're having fun with the CNC. NICE!
+1

If anyone out there is down to expriment with xover and integration, it's G-rillz...

IIRC Gorilla has a 10x10HD so he can set a few different curves for some quick switching/comparison. I'm assuming this will be complete and integrated before Aug 2nd?

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post #9 of 70 Old 07-23-2014, 06:01 AM - Thread Starter
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Quote:
Originally Posted by NicksHitachi View Post
Dude, whats next? Dual SI18 Headphones for each seat?
Hah, now you're on to something.

Quote:
Originally Posted by gpmbc View Post
Oh that should be a nice contribution. Once you feel it there's no going back and you've got one of the big issues covered out the gate. A lot of times it's hard to eliminate the feel that the bass is originating behind you depending on how close the subs are up on you. You're stacked up front so that's a huge first step. The only other factor might depend on how high you xover. Good times await Btw, I can see you're having fun with the CNC. NICE!
I'm looking forward to this experiment for sure. I used to have one of my DO enclosures right behind the riser as well and I miss the feeling. Even with the 100hz Xover I didn't recall having issues before but we'll see.

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Originally Posted by popalock View Post
+1

IIRC Gorilla has a 10x10HD so he can set a few different curves for some quick switching/comparison. I'm assuming this will be complete and integrated before Aug 2nd?

Oh yeah, still have the 10x10 and it does come in handy. I am certainly hoping to have the enclosure ready soon since we go on vacation next week. Might even get some time tonight to work on it if I'm lucky. It should go together quickly with the nailer.
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post #10 of 70 Old 07-23-2014, 10:19 AM
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Very nice! Nearfield should be intense. Your work is crazy impressive, Andrew. Will be watching.

And don't worry about the sub headphones, guys. I'll take care of that!

My Dual 18" LLT subs 120dB down to 10hz

 

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post #11 of 70 Old 07-23-2014, 02:41 PM - Thread Starter
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Very nice! Nearfield should be intense. Your work is crazy impressive, Andrew. Will be watching.

And don't worry about the sub headphones, guys. I'll take care of that!
Thanks Scott! I'm looking forward to getting it together soon. I may have some work piling up here shortly for a few of our AVS boys so it may be slightly delayed, but it will get done soon.
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post #12 of 70 Old 07-23-2014, 05:32 PM - Thread Starter
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Started assembly tonight - didn't get a ton of time but I managed get the base/frame built. Bottom/bracing/sides are now drying. Glue and brad nail makes for a quickie assembly.





And a new toy for the shop - to keep things cool.

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post #13 of 70 Old 07-23-2014, 10:24 PM
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Gorilla,

Im looking at your yard in one of your pictures and Im seriously jealous. Look at all that grass! Whatcha got over there, about an acre?

Also, the sub is looking great. With bracing like that, you and your family could crawl into that thing and be safe if the north koreans ever attack us: )
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post #14 of 70 Old 07-24-2014, 05:45 AM - Thread Starter
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Gorilla,

Im looking at your yard in one of your pictures and Im seriously jealous. Look at all that grass! Whatcha got over there, about an acre?

Also, the sub is looking great. With bracing like that, you and your family could crawl into that thing and be safe if the north koreans ever attack us: )
Hey Kevings,

Yeah, just about an acre of my own and a little bit extra of 'common' area on 2 sides which is nice.

Thanks for the complements, it seems to be coming together nicely. You never know when we'll be at war so best to be prepared, LOL!

Last edited by Gorilla83; 07-24-2014 at 05:48 AM.
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post #15 of 70 Old 07-24-2014, 10:36 AM
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Dude, I want you to love this nearfield, and then again I dont... Haha. Subd

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post #16 of 70 Old 07-24-2014, 11:29 AM
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dude, i want you to love this nearfield, and then again i dont
+1
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post #18 of 70 Old 07-24-2014, 11:41 AM
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Originally Posted by beastaudio View Post
Dude, I want you to love this nearfield, and then again I dont... Haha. Subd
You know you are going to build your own nearfield regardless...

Might even be picking up a freshly cut flat pack from Gorilla on the 2nd.

Don't deny it...

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post #19 of 70 Old 07-24-2014, 12:51 PM
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Whoa now.....Haha Nearfield 24?

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post #20 of 70 Old 07-24-2014, 12:54 PM
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Oh. Is that where we draw the line now?


My Dual 18" LLT subs 120dB down to 10hz

 

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post #21 of 70 Old 07-24-2014, 12:55 PM - Thread Starter
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Originally Posted by beastaudio View Post
Dude, I want you to love this nearfield, and then again I dont... Haha. Subd
Should I press the repeat button for you?

Quote:
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Whoa now.....Haha Nearfield 24?
That is what @Sibuna is doing.
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post #22 of 70 Old 07-24-2014, 12:56 PM
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Dual 18" SI enclosure for nearfield use

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Originally Posted by Scott Simonian View Post
Oh. Is that where we draw the line now?


Why draw more lines when everyone keeps jumping over them anyway


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post #24 of 70 Old 07-24-2014, 01:21 PM
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Should I press the repeat button for you?



That is what @Sibuna is doing.
Yeppers
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post #25 of 70 Old 07-25-2014, 01:28 PM
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My entire theater is nearfield. I find it a very different experience to larger spaces....

Being able to reach out and touch my sub with my foot / use it as a footrest is great
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post #26 of 70 Old 07-25-2014, 01:41 PM
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My entire theater is nearfield. I find it a very different experience to larger spaces....

Being able to reach out and touch my sub with my foot / use it as a footrest is great
Still living in that closet with the KRK's man? 640ft^3 or so...right?

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post #27 of 70 Old 07-25-2014, 01:48 PM
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an 8'x10' alcove in a T shaped room.

But basically... yes its small, and I don't have to deal with reflections at all as my couch is one huge sound absorber.
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post #28 of 70 Old 07-25-2014, 02:01 PM - Thread Starter
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She's drying now.

Inner and top on:


Fitting up outer baffle:



Drying:
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post #29 of 70 Old 07-25-2014, 02:32 PM
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I expect you to have that thing up and running before duratex for listening impressions like, before the end of the weekend.

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post #30 of 70 Old 07-25-2014, 02:39 PM
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Hell yeah, man.

Hero status.

My Dual 18" LLT subs 120dB down to 10hz

 

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