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post #181 of 640 Old 03-05-2014, 09:10 AM - Thread Starter
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I have a few pieces of bracing that I still need to throw in them, but there is some good bracing in them too.
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post #182 of 640 Old 03-05-2014, 09:31 AM
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post #183 of 640 Old 03-05-2014, 10:00 AM
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Im thinking I want to scoop some linacoustic too actually. Right now I have 5 2x4x2" panels behind my front stage. I am sure it will benefit by treating the entire front wall instead, but I have no idea how much benefit that would actually cause. My other though was just completely removing the sheetrock and revert back to stud with insulation in between, then linacoustic over that and call it a day.... Better decide pretty quick before I stack my bad boys in there...

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post #184 of 640 Old 03-05-2014, 10:05 AM - Thread Starter
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Doublewing had the Erskine Group do you the design and treatments for his room and they didn't even use bass traps up front which has me think about doing the same thing. I mean they would know better then I would, so if that's the case I'll pick up some Linacoutics to line the walls and ceiling behind my screen and I'll just install bass traps at the back of the room.
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post #185 of 640 Old 03-05-2014, 11:16 AM
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Woo, just found a place just down the road that has the 2 inch CertainTeed. 50 foot roll will leave me with 2 extra feet to cover my front wall, and then sides and ceiling up the the screen. Might just go ahead and scoop that this afternoon biggrin.gif The 1.5" is a little cheaper, but why not go with 2 since they have it!

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post #186 of 640 Old 03-05-2014, 11:35 AM - Thread Starter
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Woo, just found a place just down the road that has the 2 inch CertainTeed. 50 foot roll will leave me with 2 extra feet to cover my front wall, and then sides and ceiling up the the screen. Might just go ahead and scoop that this afternoon biggrin.gif The 1.5" is a little cheaper, but why not go with 2 since they have it!

Last night I was looking thru some different threads on Linacoustic and I read a few times that you don't want to use the 2" stuff, 1" and 1.5" was better to use.
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post #187 of 640 Old 03-05-2014, 11:43 AM
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Last night I was looking thru some different threads on Linacoustic and I read a few times that you don't want to use the 2" stuff, 1" and 1.5" was better to use.

Reason being?

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post #188 of 640 Old 03-05-2014, 11:44 AM
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Last night I was looking thru some different threads on Linacoustic and I read a few times that you don't want to use the 2" stuff, 1" and 1.5" was better to use.

One inch Linacoustic RC + 3mm poly + one inch Linacoustic RC.......you don't want to absorb too much HF......3mm poly does that ie. reflective.

It's a slamdunk going this route.

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post #189 of 640 Old 03-05-2014, 12:40 PM - Thread Starter
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The eagle has landed!

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post #190 of 640 Old 03-05-2014, 01:46 PM
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Nice dude!

Last question and I won't derail your thread anymore man smile.gif Where does one find "3mm poly" I wouldn't think it would reflect anything really!?!? Interesting.Still might just do the single layer of 1 1/2" all around and call it. Shouldn't be too much of a difference at that point I wouldn't think.

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post #191 of 640 Old 03-05-2014, 02:04 PM - Thread Starter
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Its my thread so ask all you want and don't worry about derailing the thread Brandon! smile.gif
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post #192 of 640 Old 03-05-2014, 02:05 PM - Thread Starter
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I would think any local hardware store should have 3mm poly.
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post #193 of 640 Old 03-05-2014, 02:07 PM
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Its my thread so ask all you want and don't worry about derailing the thread Brandon! smile.gif

Thanks man! I went ahead and asked in the Corinthian thread as well though biggrin.gif

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I would think any local hardware store should have 3mm poly.

I am assuming still this is 3mm thick polyester fabric? Or what?

(European models do not accept banana plugs.)

 

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post #194 of 640 Old 03-05-2014, 04:20 PM
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Nice dude!

Last question and I won't derail your thread anymore man smile.gif Where does one find "3mm poly" I wouldn't think it would reflect anything really!?!? Interesting.Still might just do the single layer of 1 1/2" all around and call it. Shouldn't be too much of a difference at that point I wouldn't think.

Lowes, Home Depot............

 

Look in the mortar section................concrete section.  Sheets come in varying sizes ie. 16 X 25 ft and 6mm, 4mm, 3mm.................mainly used as moisture control for crawlspaces etc.

 

You would be surprise how that poly helps...................speaking of poly, I have five sheets of 8 X 4 Quest Perfsorber panels that cost close to $800 per sheet!  It looks to me like all it is are varying layers of dense insulation and duct-tape type material sandwiched between layers.  My room is airy and smooth across FS...................whatever it is..............those experts do know their acoustical recipes.............;)


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post #195 of 640 Old 03-05-2014, 04:22 PM
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Thanks man! I went ahead and asked in the Corinthian thread as well though biggrin.gif
I am assuming still this is 3mm thick polyester fabric? Or what?

Plastic.................think trash bag...........visqueen..........................not a fabric..........

 

Thought I had a picture with the layer of 3mm poly........and not for a better term, 20 X 25 FT sheet of trash can plastic! 

 

 

Here it is....................http://www.homedepot.com/p/Husky-10-ft-x-25-ft-Black-3-5-mil-Polyethylene-Sheeting-RSHK3510-25B-U/100651803


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post #196 of 640 Old 03-05-2014, 05:14 PM - Thread Starter
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Man these things are beastly!





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post #197 of 640 Old 03-05-2014, 06:06 PM
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Looks great, fella!


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post #198 of 640 Old 03-05-2014, 06:33 PM
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Man these things are beastly!






I like.the look ofthose.boxes eek.gif

Hook em up !!!
Mines rumbling already !!!!
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post #199 of 640 Old 03-05-2014, 07:00 PM
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I revisited your graph of a single and to think you have four. Me thinks your driver issue is over. tongue.gif


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post #200 of 640 Old 03-05-2014, 07:14 PM
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No kidding, and those things look so tiny next to the LTD-m18 cabs! Wow. Puts it into perspective for me just how big those boxes are! Nicely done bro!

(European models do not accept banana plugs.)

 

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post #201 of 640 Old 03-05-2014, 09:01 PM - Thread Starter
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Haha I totally got the eye roll from the wife when she saw them...lol
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post #202 of 640 Old 03-05-2014, 10:55 PM
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LOL.

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post #203 of 640 Old 03-05-2014, 10:59 PM
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"I revisited your graph of a single and to think you have four."

i think the ports ended up a little longer, so the tuning might be a hair lower than that graphic. either way, absolutely massive spl is on the way.

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post #204 of 640 Old 03-06-2014, 04:25 AM
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Im thinking I want to scoop some linacoustic too actually. Right now I have 5 2x4x2" panels behind my front stage. I am sure it will benefit by treating the entire front wall instead, but I have no idea how much benefit that would actually cause. My other though was just completely removing the sheetrock and revert back to stud with insulation in between, then linacoustic over that and call it a day.... Better decide pretty quick before I stack my bad boys in there...

Beast, you would benefit greatly from some additional room treatments! Do you currently have any bass traps? I would not recommend using just the 1.5" stuff that you were referring to, as that provides very little effective absorbing below the Schroder Frequency, and possibly none at all. You need, ideally, at least 4" total, with an air gap. Do you walls currently have any panels? When I added my two 2' by 4' four inch panels with a four inch air gap along each side wall, front & rear wall, and my cloud ceiling panels, the improvements were so great, it really blew me away. I am also using some home made, temporary, ugly pink fluffy Insulation cut into triangles and stacked into each corner, and those have really tightened up the bass response in my room.
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post #205 of 640 Old 03-06-2014, 07:27 AM
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Beast, you would benefit greatly from some additional room treatments! Do you currently have any bass traps? I would not recommend using just the 1.5" stuff that you were referring to, as that provides very little effective absorbing below the Schroder Frequency, and possibly none at all. You need, ideally, at least 4" total, with an air gap. Do you walls currently have any panels? When I added my two 2' by 4' four inch panels with a four inch air gap along each side wall, front & rear wall, and my cloud ceiling panels, the improvements were so great, it really blew me away. I am also using some home made, temporary, ugly pink fluffy Insulation cut into triangles and stacked into each corner, and those have really tightened up the bass response in my room.

It might be prudent to know all of one's room treatments before suggesting they need more, bro smile.gif I have 4 tri-traps, 4 4 inch thick panels on the rear wall and about a dozen 2 inch panels on side walls that do an excellent job with secondary and tertiary reflections. The front wall already has 5 additional 2x4 panels. My response is good, and the bass is clean. The idea for the linacoustic is to just improve on what I have currently, while also helping with reflections behind the A-T screen.

(European models do not accept banana plugs.)

 

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post #206 of 640 Old 03-06-2014, 07:43 AM
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It might be prudent to know all of one's room treatments before suggesting they need more, bro smile.gif I have 4 tri-traps, 4 4 inch thick panels on the rear wall and about a dozen 2 inch panels on side walls that do an excellent job with secondary and tertiary reflections. The front wall already has 5 additional 2x4 panels. My response is good, and the bass is clean. The idea for the linacoustic is to just improve on what I have currently, while also helping with reflections behind the A-T screen.

Sorry! My mistake! I got the impression that you only had two panels on your front wall, and boy, I was way off!
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post #207 of 640 Old 03-06-2014, 07:53 AM
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beast> No kidding, and those things look so tiny next to the LTD-m18 cabs!

They look like little 10 or 12"s.

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post #208 of 640 Old 03-06-2014, 08:05 AM - Thread Starter
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It might be prudent to know all of one's room treatments before suggesting they need more, bro smile.gif I have 4 tri-traps, 4 4 inch thick panels on the rear wall and about a dozen 2 inch panels on side walls that do an excellent job with secondary and tertiary reflections. The front wall already has 5 additional 2x4 panels. My response is good, and the bass is clean. The idea for the linacoustic is to just improve on what I have currently, while also helping with reflections behind the A-T screen.

I was going to run tri-corner bass traps on my front wall but now I'm rethinking that. Doublewing had the Erskine Group design his room and he following the designs to a T and they said to only use 1" Linacoustics doubled up on the front wall and ceiling behind his false wall/screen.

I would install tri-corner bass traps in the back of the room and a few 4" bass trap panels on the back wall behind my seating though.
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post #209 of 640 Old 03-06-2014, 08:21 AM
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Yea, I suggest that for sure. I have that right now, with just one corner being non-existent with a little hall running off the rear left of my theater. The rest is spot on though, corner trap and 4 inch panels is exactly what I have and it works quite well smile.gif

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post #210 of 640 Old 03-06-2014, 07:28 PM - Thread Starter
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Wow, I got these first two monsters working tonight and even though I'm running them pretty lightly while they break in a little they pound.

Four of these are going to be crazy! eek.gifbiggrin.gifsmile.gif
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