How I built my bass traps...
#31
28th September 2006
Old 28th September 2006
  #31
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Acoustic Cloud's Avatar
 

GOSH GOLLY!!!

Those things are massive! Is the board 3/4 or 1 inch?? The wood looks really thick!

They would probably survive a tornado!

Good job, and nice craftmanship....
Cojo
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#32
28th September 2006
Old 28th September 2006
  #32
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Quote:
Originally Posted by bpape View Post
If you want them to do mids and highs too, then don't use any FRK/FSK. The point of it is to be able to do more bass control without overdoing the highs.

Bryan
Got it!
Cojo
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#33
28th September 2006
Old 28th September 2006
  #33
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Quote:
Originally Posted by Acoustic Cloud View Post
GOSH GOLLY!!!

Those things are massive! Is the board 3/4 or 1 inch?? The wood looks really thick!

They would probably survive a tornado!

Good job, and nice craftmanship....
Ha, ha... yeah they probably will! They are 22mm so it's someway between 3/4 & 1".

/Cojo
#34
28th September 2006
Old 28th September 2006
  #34
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Getafix's Avatar
 

Excellent thread!

Conny if you don't mind could you also post pictures showing how these traps are mounted onto the walls? I get how the frame is made but still don't know how you would keep them a couple of inches away from the wall..Thanks!
Cojo
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#35
29th September 2006
Old 29th September 2006
  #35
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Quote:
Originally Posted by s-cube View Post
Excellent thread!

Conny if you don't mind could you also post pictures showing how these traps are mounted onto the walls? I get how the frame is made but still don't know how you would keep them a couple of inches away from the wall..Thanks!
Hi s-cube.

I have not yet decided how and were to mont/place them. Right now they are floor standing. I really dont want to make to many holes in my wall since I have the studio in my apartment right now. Maby I'll make some stands for them instead.

But if I was mounting them on the wall I would probably "hang" them on ordinary shelf consoles. Just make sure the consoles are long enough so you can space the traps out from the wall. If the lower part of the trap tends to tilt in, just put some distances there.

/Cojo
Cojo
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#36
29th September 2006
Old 29th September 2006
  #36
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Here is some more pictures. In this picture the frames has just been painted.
Attached Thumbnails
How I built my bass traps...-pict0100.jpg  
Cojo
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#37
29th September 2006
Old 29th September 2006
  #37
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This is the strips that's gonna cover up the staples that's holding the fabric in the front of the traps.
Attached Thumbnails
How I built my bass traps...-pict0101.jpg  
#38
29th September 2006
Old 29th September 2006
  #38
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HEY cojo...
vey niceeeeeeee man.... you rulezzzzzz as a DIY

can you post how the traps are now... did you gonna mount them on
floor stands... ?

hey also can you post a FREQ response graph...
without the traps and with the traps ...will be niceeeee

ROlo.
#39
29th September 2006
Old 29th September 2006
  #39
Gear Head
 

Quote:
Originally Posted by Cojo View Post
This is the strips that's gonna cover up the staples that's holding the fabric in the front of the traps.
Me again!
Why do the staples need to be covered?
I'm guessing its for freq response reasons more than aesthetic, but I'd love to know exactly what effect they would actually have on the sound.
B
Cojo
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#40
29th September 2006
Old 29th September 2006
  #40
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Quote:
Originally Posted by Bendybones View Post
Me again!
Why do the staples need to be covered?
I'm guessing its for freq response reasons more than aesthetic, but I'd love to know exactly what effect they would actually have on the sound.
B
It's just for esthetics. I'll post some more pictures tomorrow when I get home then you will see what I mean!

/Cojo
Cojo
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#41
29th September 2006
Old 29th September 2006
  #41
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Quote:
Originally Posted by rolo95 View Post
HEY cojo...
vey niceeeeeeee man.... you rulezzzzzz as a DIY

can you post how the traps are now... did you gonna mount them on
floor stands... ?

hey also can you post a FREQ response graph...
without the traps and with the traps ...will be niceeeee

ROlo.
Hi.

I just have them standing on the floor right now. I'm planning on making four more traps but I havn't got the time yet.

I have some premitive graphs, nothing fancy . I recorded a played back sine wave sweep from 20Hz to 200Hz in cubase. I'll post some screenshots tomorrow.

/Cojo
#42
29th September 2006
Old 29th September 2006
  #42
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Hey cojo...
i sugest going up to 300hz.... ( many pros sweep up to 300hz ) for bass traping testing...

and also.. dont go so low as 20hz...
unless you have a fancy monitoring system
that goes that low....

most monitors... only go as low as 60hz to 40 on the best of the cases...
to say some... Mr. Bob Katz have a pair of Lipinkis L707 monitors but with Subs
to go to 20hz....

Even the Lipinkis dont go so low alone .. and cost 3000+ each...
Greets
Rolo.
#43
30th September 2006
Old 30th September 2006
  #43
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Acoustic Cloud's Avatar
 

Cojo,

The cost, ...is it translatable per unit to US dollars accurately?? Im not sure if you are using euros or , rocks with holes drilled in them, gold Dabloons, US dollars, German Phennings,....sheep, concrete goats???

IOW how much roughly was the cost for each , minus labor?
#44
30th September 2006
Old 30th September 2006
  #44
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The dman's Avatar
 

Quote:
But if I was mounting them on the wall I would probably "hang" them on ordinary shelf consoles. Just make sure the consoles are long enough so you can space the traps out from the wall. If the lower part of the trap tends to tilt in, just put some distances there.
I just mounted my broadband absorbers yesterday and heres how I did it. 4" 0f OC703 and or 705 in a 1x8 frame with a 2 inch air space to the wall. A total of 5.5" from the OC to the wall. And then I made some 2" spacers and mounted them to the bottom of the panels.
Attached Thumbnails
How I built my bass traps...-img_1777.jpg   How I built my bass traps...-brackets.jpg   How I built my bass traps...-img_1787.jpg   How I built my bass traps...-spacer.jpg   How I built my bass traps...-img_1790.jpg  

Cojo
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#45
30th September 2006
Old 30th September 2006
  #45
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Quote:
Originally Posted by dsd View Post
I just mounted my broadband absorbers yesterday and heres how I did it. 4" 0f OC703 and or 705 in a 1x8 frame with a 2 inch air space to the wall. A total of 5.5" from the OC to the wall.
Ha, ha! Exactly like my quote! Nice!

/Cojo
Cojo
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#46
30th September 2006
Old 30th September 2006
  #46
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Quote:
Originally Posted by Acoustic Cloud View Post
Cojo,

The cost, ...is it translatable per unit to US dollars accurately?? Im not sure if you are using euros or , rocks with holes drilled in them, gold Dabloons, US dollars, German Phennings,....sheep, concrete goats???

IOW how much roughly was the cost for each , minus labor?
I wish I could use rocks with holes or maby concrete goats!?

Actually the total cost inclusive paint and fabric was about €34/trap.

/Cojo
Cojo
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#47
30th September 2006
Old 30th September 2006
  #47
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Here are the last of the pictures. This is the fabric ready to be stapled.
Attached Thumbnails
How I built my bass traps...-pict0105.jpg  
Cojo
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#48
30th September 2006
Old 30th September 2006
  #48
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The staples are in and the fabric is getting trimmed.
Attached Thumbnails
How I built my bass traps...-pict0110.jpg  
Cojo
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#49
30th September 2006
Old 30th September 2006
  #49
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Here you can see why I want to hide the staples.
Attached Thumbnails
How I built my bass traps...-pict0111.jpg  
Cojo
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#50
30th September 2006
Old 30th September 2006
  #50
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And finally! Here they are, ready to be brought to my studio space.

It took about 4 days for me to build them, but that includes buying all the material as well. I think it probably possible to build them in two days if you plan your work better.
Attached Thumbnails
How I built my bass traps...-pict0112.jpg  
Cojo
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#51
30th September 2006
Old 30th September 2006
  #51
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Oh... I almost forgot!

I'll promised you my spartan graphs... Here they are . It's just a sweeped sine wave tone recorded about 1/3 in from the front wall in the center with a sm57 but you could clearly see the difference that only 4 traps do. The upper graph is the untreated room and the lower is the room with four traps (two in each front corner).

I've allready bought more material so I can make 4 traps more. Now I just need some time doing them!

/Cojo

I have tried loading up this image at least 20 times, I don't know why it doesn't show? Can somebody see it?
#52
30th September 2006
Old 30th September 2006
  #52
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Acoustic Cloud's Avatar
 

Both of your guys traps look awesome! Makes me want to break out the dusty power tools.....

But, at Glenns prices, plus my laziness and desire to keep all my fingers, I probably wont......
#53
30th September 2006
Old 30th September 2006
  #53
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This is how my construction goes:
Attached Thumbnails
How I built my bass traps...-panel_prvnifaze_web.jpg   How I built my bass traps...-panel_druhafaze_web.jpg   How I built my bass traps...-panel_skorohotovej.jpg  
#54
30th September 2006
Old 30th September 2006
  #54
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Quote:
Originally Posted by Cojo View Post

/Cojo

I have tried loading up this image at least 20 times, I don't know why it doesn't show? Can somebody see it?
no ..... ???
#55
30th September 2006
Old 30th September 2006
  #55
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#56
30th September 2006
Old 30th September 2006
  #56
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...and this is one of the sketches, note that not everything is like in reality and everything evolves, colours, construction, problems... what I know now I want to have my table/console different... the back is not solved also to my liking... but I'm moving in as I write this
Attached Thumbnails
How I built my bass traps...-studio_bcn_03.jpg  
#57
1st October 2006
Old 1st October 2006
  #57
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..and this is one of the sketches, note that not everything is like in reality and everything evolves, colours, construction, problems... what I know now I want to have my table/console different... the back is not solved also to my liking... but I'm moving in as I write this




That looks awsome
Attached Thumbnails
How I built my bass traps...-studio_bcn_03.jpg  
#58
1st October 2006
Old 1st October 2006
  #58
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thank you so much for sharing..i luv this forumthumbsup thumbsup thumbsup stike stike stike
#59
1st October 2006
Old 1st October 2006
  #59
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Quote:
Originally Posted by GoJiRa 3000 View Post
thank you so much for sharing..i luv this forumthumbsup thumbsup thumbsup stike stike stike
thumbsup
#60
1st October 2006
Old 1st October 2006
  #60
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Acoustic Cloud's Avatar
 

Quote:
Originally Posted by dsd View Post
..and this is one of the sketches, note that not everything is like in reality and everything evolves, colours, construction, problems... what I know now I want to have my table/console different... the back is not solved also to my liking... but I'm moving in as I write this




That looks awsome
G-G-G-AAAAG-- GASP!

Thats a nice room.........
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