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Forum: Dedicated Theater Design & Construction   01-03-2014, 07:42 PM
Replies: 94
Views: 11,373
Posted By johnbomb
A bit more inspiring, now that there's primer on...

A bit more inspiring, now that there's primer on the wall. Obviously shiny, but the color is close. There will be a fair amount of cherry trim- I like the color of the door jam against the dark...
Forum: Dedicated Theater Design & Construction   12-31-2013, 02:30 PM
Replies: 94
Views: 11,373
Posted By johnbomb
Just sticking my head in the door- still alive,...

Just sticking my head in the door- still alive, still chipping away. I'll post a few more pics soon. Theater ready for paint but needs front/back/side soffits built and speakers finished. Happy New...
Forum: DIY Speakers and Subs   11-14-2013, 01:17 PM
Replies: 128
Views: 7,849
Posted By johnbomb
Thanks for the pics- very nice work. Regarding...

Thanks for the pics- very nice work. Regarding your crossover: do you have to use an all-pass filter, ie ladder delay network to perfect the time alignment? I saw this, which is pretty cool:
...
Forum: DIY Speakers and Subs   10-27-2013, 06:18 PM
Replies: 128
Views: 7,849
Posted By johnbomb
Lookin' good, Scott. Can't wait to see the...

Lookin' good, Scott. Can't wait to see the schematics. How loud will they go before significantly distorting or compressing?

John
Forum: DIY Speakers and Subs   09-19-2013, 11:58 AM
Replies: 189
Views: 16,618
Posted By johnbomb
Quote:Originally Posted by...

Quote:Originally Posted by mtg90 http://www.avsforum.com/img/forum/go_quote.gif (http://www.avsforum.com/t/1475674/the-great-waveguide-shootout/150#post_23749840)

Yeah but switched early on from...
Forum: DIY Speakers and Subs   09-18-2013, 05:52 PM
Replies: 189
Views: 16,618
Posted By johnbomb
Suspending the mic from its cable is a great...

Suspending the mic from its cable is a great idea. Is your mic omnidirectional? If it's a small diaphragm condensor, then it's probably front address with a cardiod pickup pattern- that will work...
Forum: DIY Speakers and Subs   09-18-2013, 02:18 PM
Replies: 189
Views: 16,618
Posted By johnbomb
Quote:Originally Posted by...

Quote:Originally Posted by mtg90 http://www.avsforum.com/img/forum/go_quote.gif (http://www.avsforum.com/t/1475674/the-great-waveguide-shootout/150#post_23748287)

Ok I found it, here is the...
Forum: DIY Speakers and Subs   09-18-2013, 09:41 AM
Replies: 189
Views: 16,618
Posted By johnbomb
How far away was the mic on these most recent...

How far away was the mic on these most recent tests? I'd really like to see, say 1 meter vs 3 meters, if that's not impractical.
Forum: DIY Speakers and Subs   09-11-2013, 06:37 PM
Replies: 189
Views: 16,618
Posted By johnbomb
Quote:Originally Posted by...

Quote:Originally Posted by LTD02 http://www.avsforum.com/img/forum/go_quote.gif (http://www.avsforum.com/t/1475674/the-great-waveguide-shootout/150#post_23724086)

that is most likely when...
Forum: DIY Speakers and Subs   09-11-2013, 10:11 AM
Replies: 189
Views: 16,618
Posted By johnbomb
I hate to throw a wrench into things, but I...

I hate to throw a wrench into things, but I remember reading a post by Dr. Geddes in which he said something to the effect that when measuring waveguides, you have to be at least 2 meters away....
Forum: DIY Speakers and Subs   08-25-2013, 11:13 AM
Replies: 123
Views: 4,003
Posted By johnbomb
Read this... the whole thing: ...

Read this... the whole thing:

http://mehlau.net/audio/multisub_geddes/

Maybe the smartest application of subs yet.
Forum: Dedicated Theater Design & Construction   07-07-2013, 09:17 PM
Replies: 94
Views: 11,373
Posted By johnbomb
That's a really good looking plot, Elill- I hope...

That's a really good looking plot, Elill- I hope I can get half as good as that!
Forum: Dedicated Theater Design & Construction   07-07-2013, 08:04 AM
Replies: 94
Views: 11,373
Posted By johnbomb
Thanks guys! HopefulFred, that wall is made of a...

Thanks guys! HopefulFred, that wall is made of a single row of normal sized bricks. I had enough thickness in the drywall/stud construction that was there previously to go ahead with regular bricks....
Forum: Dedicated Theater Design & Construction   07-06-2013, 09:10 PM
Replies: 94
Views: 11,373
Posted By johnbomb
New hardwood! Needs to be sanded/stained, but I...

New hardwood! Needs to be sanded/stained, but I love it so far. Also had a brick wall built and tied into the existing chimney. I told my wife that the theater would be functional by Christmas-...
Forum: Dedicated Theater Design & Construction   06-20-2013, 11:26 AM
Replies: 94
Views: 11,373
Posted By johnbomb
Quote:Originally Posted by...

Quote:Originally Posted by Neurorad http://www.avsforum.com/img/forum/go_quote.gif (http://www.avsforum.com/t/1297688/the-johnbomb-build/60#post_23447999)

Any interest in testing the ceiling-run...
Forum: Dedicated Theater Design & Construction   06-19-2013, 06:40 PM
Replies: 94
Views: 11,373
Posted By johnbomb
... And now it's up! Pretty sexy, huh? ...

... And now it's up! Pretty sexy, huh?

http://www.avsforum.com/content/type/61/id/228112/width/500/height/1000/flags/LL (http://www.avsforum.com/content/type/61/id/228112/)
Forum: Dedicated Theater Design & Construction   06-18-2013, 03:08 PM
Replies: 94
Views: 11,373
Posted By johnbomb
Ceiling goes up tomorrow! FInally! Double 5/8"...

Ceiling goes up tomorrow! FInally! Double 5/8" drywall and green glue. I took all those boxes down from between the joists and decided to just do a regular ceiling. This should be a real motivator....
Forum: Digital Hi-End Projectors - $3,000+ USD MSRP   05-02-2013, 07:30 PM
Replies: 4
Views: 303
Posted By johnbomb
Hey Ron, Budget: up to $7000, maybe $8k if...

Hey Ron,

Budget: up to $7000, maybe $8k if the value is there. I'm primarily interested in 2D, but would like very good (if not class leading) 3D. The room will be a very dark color. I already...
Forum: Digital Hi-End Projectors - $3,000+ USD MSRP   05-01-2013, 10:57 AM
Replies: 4
Views: 303
Posted By johnbomb
Hello everyone, I'm finally getting to the...

Hello everyone,

I'm finally getting to the point in my theater build (see sig) where I'm starting to think about projectors. I plan to have the thing operational by year's end. Here are my...
Forum: Dedicated Theater Design & Construction   02-23-2013, 06:43 AM
Replies: 94
Views: 11,373
Posted By johnbomb
Yes. It will be recessed (when viewed from the...

Yes. It will be recessed (when viewed from the floor looking up) but accessible. See the seventh image down in post #70 to see how it looks in the opposite wall.
Forum: Dedicated Theater Design & Construction   02-22-2013, 10:01 PM
Replies: 94
Views: 11,373
Posted By johnbomb
Thanks for the kind words! Neurorad- an...

Thanks for the kind words!

Neurorad- an ipad controller had crossed my mind. As far as the other outlets go, I forgot to show you guys these......
Forum: Dedicated Theater Design & Construction   02-17-2013, 04:17 PM
Replies: 94
Views: 11,373
Posted By johnbomb
Started the far wall today... ...

Started the far wall today...

http://www.avsforum.com/content/type/61/id/151759/width/500/height/1000/flags/LL (http://www.avsforum.com/content/type/61/id/151759/)...
Forum: DIY Speakers and Subs   02-14-2013, 11:23 AM
Replies: 74
Views: 11,143
Posted By johnbomb
Not yet, but hopefully before too long. I've...

Not yet, but hopefully before too long. I've been working on my theater. Thanks for asking!

John
Forum: Dedicated Theater Design & Construction   02-09-2013, 07:06 AM
Replies: 6
Views: 762
Posted By johnbomb
I read once that someone filled the stud bays...

I read once that someone filled the stud bays between layers of drywall with sand... the drywall then bowed and ripped apart, spilling the sand everywhere.
Forum: Dedicated Theater Design & Construction   02-06-2013, 03:51 PM
Replies: 94
Views: 11,373
Posted By johnbomb
Got the glue up/screw up of the wall finished...

Got the glue up/screw up of the wall finished today...

http://www.avsforum.com/content/type/61/id/144401/width/500/height/1000/flags/LL (http://www.avsforum.com/content/type/61/id/144401/)...
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