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Search: Posts Made By: BasementBob
Forum: Dedicated Theater Design & Construction   05-02-2015, 12:45 PM
Replies: 1,093
Views: 66,826
Posted By BasementBob
The primary reason for steel instead of wood...

The primary reason for steel instead of wood there would be to prevent radiation from leaving the room. Wood is biologic, and won't stop radiation.
Then there's fire prevention (many hospitals have...
Forum: Dedicated Theater Design & Construction   05-02-2015, 12:21 PM
Replies: 1,093
Views: 66,826
Posted By BasementBob
I don't recall any studies on the topic of steel...

I don't recall any studies on the topic of steel vs wood door jambs (lots of studies/concerns on walls with steel studs vs wood studs). Concrete filled steel jambs can be quite strong and massive...
Forum: Dedicated Theater Design & Construction   05-01-2015, 04:21 PM
Replies: 1,093
Views: 66,826
Posted By BasementBob
mtbdudex: Reminds me of the Rod Gervais door...

mtbdudex:
Reminds me of the Rod Gervais door -- {standard solid core door, sheet of 8 psf sheet lead, 3/4 inch plywood} -- with the lead and plywood being held back 1 inch on both sides and top for...
Forum: Dedicated Theater Design & Construction   04-28-2015, 09:52 AM
Replies: 781
Views: 43,979
Posted By BasementBob
Years ago on AVS there was a thread of people...

Years ago on AVS there was a thread of people proudly showing off their screen deliveries (SmX?), including a few that were totaled in shipping. I looked, but couldn't find the one where the long...
Forum: Dedicated Theater Design & Construction   04-26-2015, 12:53 AM
Replies: 1,093
Views: 66,826
Posted By BasementBob
and 1/2 inch plywood isn't as good as...

and

1/2 inch plywood isn't as good as drywall when it comes to fire control. It's good as sheathing for bracing, such as with a cripple wall against earthquakes. And structurally able to screw...
Forum: Dedicated Theater Design & Construction   04-20-2015, 03:02 PM
Replies: 1,093
Views: 66,826
Posted By BasementBob
DB-3 is Mass Loaded Vinyl (MLV). ...

DB-3 is Mass Loaded Vinyl (MLV).

Installation can be seen in here on YouTube (https://www.youtube.com/watch?feature=player_embedded&v=B-gONCbtnCI).

MLV is more expensive per pound than...
Forum: Dedicated Theater Design & Construction   04-14-2015, 10:49 PM
Replies: 781
Views: 43,979
Posted By BasementBob
http://www.amazon.com/dp/B00NNEK4OC

http://www.amazon.com/dp/B00NNEK4OC
Forum: Dedicated Theater Design & Construction   04-14-2015, 06:18 PM
Replies: 781
Views: 43,979
Posted By BasementBob
Will the room be painted one of those...

Will the room be painted one of those photographic grey card colours to minimize screen colour error?
Forum: Official AVS Blu-ray Disc Reviews   04-07-2015, 07:08 PM
Replies: 67
Views: 2,210
Posted By BasementBob
The U.S. Army flies a drone called "Hummingbird"...

The U.S. Army flies a drone called "Hummingbird" that uses a 1.8 gigapixel ARGUS sensor.
There are places like University of Washington Planetarium with a terapixel display.
Forum: General Home Theater & Media/Game Rooms   04-02-2015, 11:08 PM
Replies: 8,085
Views: 749,323
Posted By BasementBob
Watched The Imitation Game (2014)...

Watched The Imitation Game (2014) (http://www.amazon.com/dp/B00RY86HSU)
3.9/5 (amazon 4.6/5, imdb 8.1/10, rotten tomatoes 93%)
Based on the real life story of legendary cryptanalyst Alan Turing,...
Forum: General Home Theater & Media/Game Rooms   04-02-2015, 10:53 PM
Replies: 8,085
Views: 749,323
Posted By BasementBob
Watched Maleficent (2014)...

Watched Maleficent (2014) (http://www.amazon.com/dp/B00M4ADWTK)
3.5/5 (amazon 4.6/5, imdb 7.1/10, rotten tomatoes 71%, AVS Ralph Potts 3.5/5...
Forum: General Home Theater & Media/Game Rooms   04-02-2015, 10:39 PM
Replies: 8,085
Views: 749,323
Posted By BasementBob
Watched Dark Angel: The Ascent (1994)...

Watched Dark Angel: The Ascent (1994) (http://www.amazon.com/dp/B00977HRSK)
2.5/5 (amazon 3.9/5, imdb 6.3/10)
Brought to you by Full Moon (Puppet Master, Trancers, etc)
A demoness from Hell,...
Forum: Dedicated Theater Design & Construction   04-01-2015, 07:34 AM
Replies: 1,093
Views: 66,826
Posted By BasementBob
Stiffness. An optimum wall is one with the...

Stiffness.

An optimum wall is one with the lowest resonance frequency and highest coincidence frequency, and largest sum TL across all frequencies.

Think of a drum. If you tension/stiffen the...
Forum: Dedicated Theater Design & Construction   03-25-2015, 11:46 PM
Replies: 1,093
Views: 66,826
Posted By BasementBob
Any solution using rubber results in a...

Any solution using rubber results in a mass-spring-mass (M-S-M) system, which has a resonance frequency.
Lots of machines vibrate within a higher frequency range, which is so far above M-S-M...
Forum: Dedicated Theater Design & Construction   03-25-2015, 11:31 PM
Replies: 1,093
Views: 66,826
Posted By BasementBob
Replace 'dense' with 'massive' everywhere in that...

Replace 'dense' with 'massive' everywhere in that paragraph, and it would be correct.
A piece of paper is dense, about the same density of sheet of plywood -- but a piece of paper wouldn't stop much...
Forum: Dedicated Theater Design & Construction   03-23-2015, 10:45 PM
Replies: 10,833
Views: 1,405,238
Posted By BasementBob
Guilford of Maine is also fire resistant.

Guilford of Maine is also fire resistant.
Forum: General Home Theater & Media/Game Rooms   03-23-2015, 12:26 AM
Replies: 8,085
Views: 749,323
Posted By BasementBob
Watched Kill the Messenger (2015)...

Watched Kill the Messenger (2015) (http://www.amazon.com/dp/B00P6VM1SM)
3.3/5 (amazon 4.2/5, imdb 7/10, rotten tomatoes 72%)
A reporter becomes the target of a huge smear campaign that drives him...
Forum: General Home Theater & Media/Game Rooms   03-22-2015, 10:10 PM
Replies: 8,085
Views: 749,323
Posted By BasementBob
Watched Exodus: Gods and Kings (2014)...

Watched Exodus: Gods and Kings (2014) (http://www.amazon.com/dp/B00STPQ8PO)
2.3/5 (amazon 2.7/5, imdb 6.2/10, rotten tomatoes 28%, Decent Films: B-...
Forum: Dedicated Theater Design & Construction   03-21-2015, 08:42 PM
Replies: 1,093
Views: 66,826
Posted By BasementBob
When http://www.soundproofingcompany.com/ ...

When
http://www.soundproofingcompany.com/
fails, try the older
http://www.greengluecompany.com/
Forum: General Home Theater & Media/Game Rooms   03-21-2015, 07:25 AM
Replies: 8,085
Views: 749,323
Posted By BasementBob
'Encounters at the End of the World (2007)',...

'Encounters at the End of the World (2007)', 'depressed penguin' documentarian Werner Herzog (https://www.youtube.com/watch?v=zWH_9VRWn8Y#t=60)
Forum: General Home Theater & Media/Game Rooms   03-20-2015, 08:55 PM
Replies: 8,085
Views: 749,323
Posted By BasementBob
Watched Penguins of Madagascar (2014)...

Watched Penguins of Madagascar (2014) (http://www.amazon.com/dp/B00SK573RU)
3/5 (amazon 4.4/5, imdb 6.8/10, Decent Films: C- (http://www.decentfilms.com/blog/penguinsofmadagascar-vid), rotten...
Forum: Dedicated Theater Design & Construction   03-17-2015, 05:13 PM
Replies: 1,093
Views: 66,826
Posted By BasementBob
When the mass of a barrier is doubled, the...

When the mass of a barrier is doubled, the isolation quality (or STC rating) increases by approximately 4-6 dB.
Forum: General Home Theater & Media/Game Rooms   03-15-2015, 06:46 PM
Replies: 8,085
Views: 749,323
Posted By BasementBob
Watched Trancers 1 (1984), Trancers 2 (1991,...

Watched Trancers 1 (1984), Trancers 2 (1991, Trancers 3 (1992), Trancers 4 (1994), Trancers 5 (1994) (http://www.amazon.com/dp/B005B0QYTU)
2/5 (amazon 3.9/5, imdb 6.2/10, rotten tomatoes 51%)
Came...
Forum: Dedicated Theater Design & Construction   03-14-2015, 11:35 PM
Replies: 10,833
Views: 1,405,238
Posted By BasementBob
I hope FRK is not the most popular -- it...

I hope FRK is not the most popular -- it shouldn't be. The uncertainty is a mess. The membrane will do something. What it will do in any given room is unknown.
The high end frequencies reflection...
Forum: Dedicated Theater Design & Construction   03-14-2015, 08:27 PM
Replies: 10,833
Views: 1,405,238
Posted By BasementBob
- A baffle wall (drywall or 1 inch MDF wall, with...

- A baffle wall (drywall or 1 inch MDF wall, with holes for speakers, with the speaker face mounted flush with the room side wall surface) will get rid of one bunch of SBIR (Speaker Boundary...
Showing results 1 to 25 of 4834

 
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