Ellis Family Retirement HT: Go big or go home - Page 18 - Home Theater Forum and Systems - HomeTheaterShack.com

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post #171 of 793 Old 03-10-14, 10:16 PM Thread Starter
 
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Re: My retirement Home Theater

Today we got 3 walls framed, partially insulated, and partially covered with OSB.




Still waiting on the speaker wire, and some Sorbathane disks to rest the subs on under the platform. As soon as we have both we will be able to seal up the platform. I have decided to move the subs before we close them up... We will move them 90 degrees so they are not in the corners. From what I understand the bass won't be as loud but it will be smoother across all the seating locations.

Ron

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Yamaha CX-A5100, (3) JBL 2360A/EV DHA-1s, (3) 1/4 Pie bass bins, (2 pr) JBL 8340As, (2 pr) JBL 8320s, PS3, XBox One, (2) Intel NUCs, Redmere HDMI cables, Monster Signature HTPS7000, (2) Furman Power Conditioners, (2) DTS-10 subs, Panasonic AE8000, SeymourAV 180 (195" diag) scope screen, Darbee Darcet, Panamorph UH-480 lens, (2) Crest Audio 2208, Yamaha XM-4080 & P7000s, (2) MiniDSP DDRC-88M, Oppo UDP-203

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post #172 of 793 Old 03-10-14, 10:32 PM Thread Starter
 
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Re: My retirement Home Theater

Question: If the insulation I install touches the insulation in the second wall will it reduce the STC rating of a double wall construction?

Ron

My Home Theater
Yamaha CX-A5100, (3) JBL 2360A/EV DHA-1s, (3) 1/4 Pie bass bins, (2 pr) JBL 8340As, (2 pr) JBL 8320s, PS3, XBox One, (2) Intel NUCs, Redmere HDMI cables, Monster Signature HTPS7000, (2) Furman Power Conditioners, (2) DTS-10 subs, Panasonic AE8000, SeymourAV 180 (195" diag) scope screen, Darbee Darcet, Panamorph UH-480 lens, (2) Crest Audio 2208, Yamaha XM-4080 & P7000s, (2) MiniDSP DDRC-88M, Oppo UDP-203

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post #173 of 793 Old 03-11-14, 10:04 AM
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Re: My retirement Home Theater

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ellisr63 wrote: View Post
It would be pretty hard to lift them straight out and flip them right now. The reason I went this route is... I am thinking if I need more output I will go for either another pair or a pair ot the Spuds to put in the corners behind the screen. From what I have read one in each corner would be the best. I hope that they will work out well this way.


The one thing that still has me undecided is whether I should have the short hallway or not... Aesthically I think that no hallway is better, but it might be easier to isolate the sound with the short hallway.

Any comments
I like the idea of the short hallway for more potential sound isolation. It really works well in Sonnie's design.

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Here is a side shot drawing of the proposed layout...


Here is a drawing of from the back wall to the front...


Here is an overhead shot...



What I am thinking of doing is have a 1'x1' soffit all around the room and have the bottom part of it angle up to the ceiling at 45 degrees... On the front wall I think this might even help with reflections from the projector. I am anticipating having diffusers behind the 2nd row of seating. I am also thinking of putting some bass traps in all 4 corners angled across the corner coming out about 2' across... These would go floor to ceiling except in the front where the height channels are. I am also thinking that all of the soffits except for the HVAC ones could be filled with sound dampening materials and then covered in a dark (maybe black) acoustic material. I really like the look of random depth fabric box walls that I saw someone else use and would like to do all the walls with those. As far as the ceiling I could also use floating absorption panels.

The reason for the projector soffit is two fold... One is to hide the wires, and the other is in case I ever want to change the projector I can then move it forward or backward with out a complete mess in the ceiling.


How does that sound? Suggestions? Comments?
That sounds like a good plan to me. By the way, one thing just dawned on me - are you or have you considered doing a two door design for more isolation?

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We are making the sub floor out of 2x4s doubled up on their sides (3" high)... We are putting fiberglass insulation under the flooring that is R19, is that ok (as it will be smashed where the cross beams are?
I think you should be good to go with that.


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post #174 of 793 Old 03-11-14, 10:06 AM
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Re: My retirement Home Theater

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Question: If the insulation I install touches the insulation in the second wall will it reduce the STC rating of a double wall construction?
Sorry - between the speaker event, newsletter, kids sports, etc, ad nauseum, I am way behind on my posts...

Yes, it will. You do allow for transference when those two surfaces come in contact.


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post #175 of 793 Old 03-11-14, 10:18 AM Thread Starter
 
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Re: My retirement Home Theater

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I like the idea of the short hallway for more potential sound isolation. It really works well in Sonnie's design.



That sounds like a good plan to me. By the way, one thing just dawned on me - are you or have you considered doing a two door design for more isolation?



I think you should be good to go with that.
Do you mean to use 3 doors...We are using a door on each end of the hallway already.

Ron

My Home Theater
Yamaha CX-A5100, (3) JBL 2360A/EV DHA-1s, (3) 1/4 Pie bass bins, (2 pr) JBL 8340As, (2 pr) JBL 8320s, PS3, XBox One, (2) Intel NUCs, Redmere HDMI cables, Monster Signature HTPS7000, (2) Furman Power Conditioners, (2) DTS-10 subs, Panasonic AE8000, SeymourAV 180 (195" diag) scope screen, Darbee Darcet, Panamorph UH-480 lens, (2) Crest Audio 2208, Yamaha XM-4080 & P7000s, (2) MiniDSP DDRC-88M, Oppo UDP-203

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post #176 of 793 Old 03-11-14, 10:28 AM
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Do you mean to use 3 doors...We are using a door on each end of the hallway already.
I just realized I did not explain that well. I meant using two doors at the entry to your HT - I know there is a specific term for this, but it cannot remember it ATM. One door swings out and the other swings in - in essence, it makes your entryway double thick with a bit a bit of dead air space between the two doors.

Not sure if Sonnie has a picture up of it, but it is what he did for his entry.


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post #177 of 793 Old 03-11-14, 10:35 AM Thread Starter
 
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I just realized I did not explain that well. I meant using two doors at the entry to your HT - I know there is a specific term for this, but it cannot remember it ATM. One door swings out and the other swings in - in essence, it makes your entryway double thick with a bit a bit of dead air space between the two doors.

Not sure if Sonnie has a picture up of it, but it is what he did for his entry.
Gotcha... Not sure about doing 3 doors in a 6' space, as it means we will also have to raise the first door up off the ground as there are 2 steps leading upwards on the outside.

Ron

My Home Theater
Yamaha CX-A5100, (3) JBL 2360A/EV DHA-1s, (3) 1/4 Pie bass bins, (2 pr) JBL 8340As, (2 pr) JBL 8320s, PS3, XBox One, (2) Intel NUCs, Redmere HDMI cables, Monster Signature HTPS7000, (2) Furman Power Conditioners, (2) DTS-10 subs, Panasonic AE8000, SeymourAV 180 (195" diag) scope screen, Darbee Darcet, Panamorph UH-480 lens, (2) Crest Audio 2208, Yamaha XM-4080 & P7000s, (2) MiniDSP DDRC-88M, Oppo UDP-203

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post #178 of 793 Old 03-11-14, 10:53 AM Thread Starter
 
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Re: My retirement Home Theater

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ALMFamily wrote: View Post
Sorry - between the speaker event, newsletter, kids sports, etc, ad nauseum, I am way behind on my posts...

Yes, it will. You do allow for transference when those two surfaces come in contact.
I was all ready to tear the walls we did back down... I called the Soundproofing Company to order some GG and double checked with them, and they said no problem. They said that what is meant by transference is a hard surface not the soft surface that R19 fiberglass insulation would make by putting 2x6 or 2x8 insulation in a 2x4 frame.

So that means we will make some good progress today, as we don't have to tear anything else back down again.

Ron

My Home Theater
Yamaha CX-A5100, (3) JBL 2360A/EV DHA-1s, (3) 1/4 Pie bass bins, (2 pr) JBL 8340As, (2 pr) JBL 8320s, PS3, XBox One, (2) Intel NUCs, Redmere HDMI cables, Monster Signature HTPS7000, (2) Furman Power Conditioners, (2) DTS-10 subs, Panasonic AE8000, SeymourAV 180 (195" diag) scope screen, Darbee Darcet, Panamorph UH-480 lens, (2) Crest Audio 2208, Yamaha XM-4080 & P7000s, (2) MiniDSP DDRC-88M, Oppo UDP-203

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post #179 of 793 Old 03-11-14, 01:55 PM
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Re: My retirement Home Theater

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ellisr63 wrote: View Post
I was all ready to tear the walls we did back down... I called the Soundproofing Company to order some GG and double checked with them, and they said no problem. They said that what is meant by transference is a hard surface not the soft surface that R19 fiberglass insulation would make by putting 2x6 or 2x8 insulation in a 2x4 frame.

So that means we will make some good progress today, as we don't have to tear anything else back down again.
That is good to hear - I wonder if what I read applied when the insulation was compressed... Going to have to find that again to see....


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post #180 of 793 Old 03-11-14, 06:05 PM Thread Starter
 
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Re: My retirement Home Theater

The bad thing I found out today was we have to rip out the wall that is between the house and the garage as it would be a triple leaf. It will take a while but it will also be replaced with a double 2x4 wall. We have almost got the stadium style stairs completed... All the AC ducts are now gone, Hopefully this weekend I will get the replacement ducts.

Ron

My Home Theater
Yamaha CX-A5100, (3) JBL 2360A/EV DHA-1s, (3) 1/4 Pie bass bins, (2 pr) JBL 8340As, (2 pr) JBL 8320s, PS3, XBox One, (2) Intel NUCs, Redmere HDMI cables, Monster Signature HTPS7000, (2) Furman Power Conditioners, (2) DTS-10 subs, Panasonic AE8000, SeymourAV 180 (195" diag) scope screen, Darbee Darcet, Panamorph UH-480 lens, (2) Crest Audio 2208, Yamaha XM-4080 & P7000s, (2) MiniDSP DDRC-88M, Oppo UDP-203

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