Login / Register
 
How I built my bass traps...
New Reply
Subscribe
Cojo
Thread Starter
#121
6th January 2007
Old 6th January 2007
  #121
Lives for gear
 
Cojo's Avatar
 
Joined: Dec 2005
Location: Gothenburg, Sweden!
Posts: 1,491

Thread Starter
Cojo is online now
Hi again, I've started to make some new traps.

Since I made the first traps I have learned a few things so you can say that these new traps are version 2 of the original design.

The difference is the framing wood that now have holes cut through them so the effectiveness of the traps will become much better. This, obviously, have made them much lighter but it has also involved much more work.

On these pictures I took today you can see the sides getting done.
Attached Thumbnails
How I built my bass traps...-image_006.jpg   How I built my bass traps...-image_007.jpg   How I built my bass traps...-image_008.jpg  
__________________
Conny Johansson
[ www.asteroidkiller.com ]
Cojo
Thread Starter
#122
6th January 2007
Old 6th January 2007
  #122
Lives for gear
 
Cojo's Avatar
 
Joined: Dec 2005
Location: Gothenburg, Sweden!
Posts: 1,491

Thread Starter
Cojo is online now
Here are the ready cut framing for two traps.
Attached Thumbnails
How I built my bass traps...-image_013.jpg  
#123
6th January 2007
Old 6th January 2007
  #123
Gear maniac
 
4stringerfinger's Avatar
 
Joined: Nov 2006
Location: Space City, TX
Posts: 243

Send a message via MSN to 4stringerfinger
4stringerfinger is offline
Awesome, can't wait to finally work on my DIY acoustic treatment project. Thanks for the update.
#124
7th January 2007
Old 7th January 2007
  #124
Gear maniac
 
Scott R. Foster's Avatar
 
Joined: Feb 2006
Location: Jax - FL
Posts: 169

Scott R. Foster is offline
Nice... I'm going to go build a drink in your honor.
#125
7th January 2007
Old 7th January 2007
  #125
500 series nutjob
 
pan60's Avatar
 
Joined: Nov 2004
Location: 500 series Guru SKANK! ; )
Posts: 11,515

Send a message via Skype™ to pan60
pan60 is offline
Quote:
Originally Posted by Scott R. Foster View Post
Nice... I'm going to go build a drink in your honor.
me two
#126
7th January 2007
Old 7th January 2007
  #126
Lives for gear
 
Joined: Jul 2005
Location: St. Louis(Wildwood), MO
Posts: 765

bpape is offline
Nice work. Most people don't take the time to do nicely shaped cutouts like that.

That's enough surface area to make a significant difference in the amount of absorbant exposed.

Sorry, I'm late to the party and it's too early to have a drink or two - well, maybe a little Kahlua in the coffee....

Bryan
__________________
I am serious, and don't call me Shirley

Bryan Pape
Lead Acoustical Designer
GIK Acoustics
Cojo
Thread Starter
#127
7th January 2007
Old 7th January 2007
  #127
Lives for gear
 
Cojo's Avatar
 
Joined: Dec 2005
Location: Gothenburg, Sweden!
Posts: 1,491

Thread Starter
Cojo is online now
The drinks are on me!

Here's todays progress... The frames have been assembled, and they have been stained.
Attached Thumbnails
How I built my bass traps...-image_018.jpg   How I built my bass traps...-image_019.jpg   How I built my bass traps...-image_021.jpg  
#128
7th January 2007
Old 7th January 2007
  #128
Lives for gear
 
Joined: Nov 2002
Location: Ky.
Posts: 637

tubedude is offline
THat might be a little harder than using a hole saw, but it looks good. I would stain the outside and cover the inside side of the hole with material to keep stuff in.
__________________
You CAN polish a turd... if you freeze it first.
Cojo
Thread Starter
#129
7th January 2007
Old 7th January 2007
  #129
Lives for gear
 
Cojo's Avatar
 
Joined: Dec 2005
Location: Gothenburg, Sweden!
Posts: 1,491

Thread Starter
Cojo is online now
Quote:
Originally Posted by tubedude View Post
I would stain the outside and cover the inside side of the hole with material to keep stuff in.
That's the plan!
#130
8th January 2007
Old 8th January 2007
  #130
Gear Guru
 
Glenn Kuras's Avatar
 
Joined: Jul 2005
Location: Atlanta, GA
Posts: 16,188

Glenn Kuras is offline
Quote:
Originally Posted by Cojo View Post
That's the plan!
Great looking stuff there sir!!!
Keep the pictures coming.

Glenn
#131
8th January 2007
Old 8th January 2007
  #131
Gear addict
 
svart's Avatar
 
Joined: Dec 2006
Location: Atlanta
Posts: 472

svart is offline
I thought for proper absorbtion/dissipation the traps actually had to be sealed and airtight except for their fronts?
#132
8th January 2007
Old 8th January 2007
  #132
Gear Guru
 
Glenn Kuras's Avatar
 
Joined: Jul 2005
Location: Atlanta, GA
Posts: 16,188

Glenn Kuras is offline
You are thinking of sealed panel traps, which are tuned to a certain problem frequency. What he is building is a broad band bass trap which picks up more of the over all frequency range.

Glenn
__________________
Glenn Kuras
GIK Acoustics USA
GIK Acoustics Europe
http://www.gikacoustics.de (German Translation)
404 492 8364 (USA)
+44 (0) 20 7558 8976 (Europe)

Built in Slat design (Scattering/Diffusion) on all Bass Traps click here
Cojo
Thread Starter
#133
10th January 2007
Old 10th January 2007
  #133
Lives for gear
 
Cojo's Avatar
 
Joined: Dec 2005
Location: Gothenburg, Sweden!
Posts: 1,491

Thread Starter
Cojo is online now
So... here are todays work!

The fabric is getting stapled and trimmed on the sides.
Attached Thumbnails
How I built my bass traps...-image_035.jpg   How I built my bass traps...-image_034.jpg  
Cojo
Thread Starter
#134
10th January 2007
Old 10th January 2007
  #134
Lives for gear
 
Cojo's Avatar
 
Joined: Dec 2005
Location: Gothenburg, Sweden!
Posts: 1,491

Thread Starter
Cojo is online now
Here's the finished frames before fitting the insulation.
Attached Thumbnails
How I built my bass traps...-image_036.jpg  
Cojo
Thread Starter
#135
10th January 2007
Old 10th January 2007
  #135
Lives for gear
 
Cojo's Avatar
 
Joined: Dec 2005
Location: Gothenburg, Sweden!
Posts: 1,491

Thread Starter
Cojo is online now
Picture of the front and the back of the trap filled with 6" of insulation.
Attached Thumbnails
How I built my bass traps...-image_038.jpg   How I built my bass traps...-image_044.jpg  
Cojo
Thread Starter
#136
10th January 2007
Old 10th January 2007
  #136
Lives for gear
 
Cojo's Avatar
 
Joined: Dec 2005
Location: Gothenburg, Sweden!
Posts: 1,491

Thread Starter
Cojo is online now
Me with a staple gun and a scissor attaching the frontcover.
Attached Thumbnails
How I built my bass traps...-image_042.jpg   How I built my bass traps...-image_043.jpg  
Cojo
Thread Starter
#137
10th January 2007
Old 10th January 2007
  #137
Lives for gear
 
Cojo's Avatar
 
Joined: Dec 2005
Location: Gothenburg, Sweden!
Posts: 1,491

Thread Starter
Cojo is online now
...and finally, two selfmade traps ready to be transported to me!
Attached Thumbnails
How I built my bass traps...-image_046.jpg  
#138
10th January 2007
Old 10th January 2007
  #138
500 series nutjob
 
pan60's Avatar
 
Joined: Nov 2004
Location: 500 series Guru SKANK! ; )
Posts: 11,515

Send a message via Skype™ to pan60
pan60 is offline

to cool!!!
#139
11th January 2007
Old 11th January 2007
  #139
Gear maniac
 
Scott R. Foster's Avatar
 
Joined: Feb 2006
Location: Jax - FL
Posts: 169

Scott R. Foster is offline
The best bass traps in the world are home made [well the worst too - but that aint the case here].
#140
11th January 2007
Old 11th January 2007
  #140
Lives for gear
 
xmostynx's Avatar
 
Joined: Jan 2006
Location: Pittsburgh, PA
Posts: 2,302

Send a message via AIM to xmostynx
xmostynx is offline
does it really matter what kind of insulation you use?

i'm not that familiar with insulation..but what about wall insulation? thats REALLY thick would that work at all?

and should you wrap the insulation in some kind of plastic to seal it off? insulation fibers=unhealthy to breath in?

i'm getting ready to build m ine..just wondering!!
__________________
-Make no mistakes I am what you make me
http://www.myspace.com/xmostynx
Cojo
Thread Starter
#141
11th January 2007
Old 11th January 2007
  #141
Lives for gear
 
Cojo's Avatar
 
Joined: Dec 2005
Location: Gothenburg, Sweden!
Posts: 1,491

Thread Starter
Cojo is online now
Quote:
Originally Posted by pan60 View Post

to cool!!!


Quote:
Originally Posted by Scott R. Foster View Post
The best bass traps in the world are home made [well the worst too - but that aint the case here].
You're flattering me!

I have to say that it was much more work too. Cutting those extra holes in the sides wasn't difficult but it took alot more time, I really like the looks of them. I'll hope it will be worth it in the end. On paper you can say that I've got three traps, instead of two, compared to if I have done them as the previous ones.
Cojo
Thread Starter
#142
11th January 2007
Old 11th January 2007
  #142
Lives for gear
 
Cojo's Avatar
 
Joined: Dec 2005
Location: Gothenburg, Sweden!
Posts: 1,491

Thread Starter
Cojo is online now
Quote:
Originally Posted by xmostynx View Post
does it really matter what kind of insulation you use?

i'm not that familiar with insulation..but what about wall insulation? thats REALLY thick would that work at all?

and should you wrap the insulation in some kind of plastic to seal it off? insulation fibers=unhealthy to breath in?

i'm getting ready to build m ine..just wondering!!
Hi, I'll try to answer.

It does matter which insulation you use. You want to use insulation with high density. If you use fibre glass the density would be from around 45kg/sqr meter to 90kg/sqr meter. If you use stone wool the density would be a little bit higher.

If you wrap it in plastic it would still work for low frequencies but all the high frequecies would reflect back to you. I will not say anything about the helth aspect as I'm no doctor.

Good luck to you!
#143
11th January 2007
Old 11th January 2007
  #143
Lives for gear
 
Joined: Jul 2005
Location: St. Louis(Wildwood), MO
Posts: 765

bpape is offline
For some reason, the last pic of the finished product isn't coming through.

Bryan
Cojo
Thread Starter
#144
11th January 2007
Old 11th January 2007
  #144
Lives for gear
 
Cojo's Avatar
 
Joined: Dec 2005
Location: Gothenburg, Sweden!
Posts: 1,491

Thread Starter
Cojo is online now
Quote:
Originally Posted by bpape View Post
For some reason, the last pic of the finished product isn't coming through.

Bryan
Strange... I can see it. Try to reload or check back later.
#145
11th January 2007
Old 11th January 2007
  #145
Gear addict
 
studio825's Avatar
 
Joined: Sep 2006
Location: Dahellaware
Posts: 354

studio825 is offline
love the trap design .....
i would be careful with the facing cloth that the weave is not too tight as this will have a reflective response i have heard this in action and its not pretty .....also the fire aspect safety first... im gonna be building some too



As long as you can breath through the material you will have no problems>
__________________
I QUIT
#146
11th January 2007
Old 11th January 2007
  #146
Gear Guru
 
Glenn Kuras's Avatar
 
Joined: Jul 2005
Location: Atlanta, GA
Posts: 16,188

Glenn Kuras is offline
Quote:
Originally Posted by Cojo View Post
...and finally, two selfmade traps ready to be transported to me!

thumbsup thumbsup thumbsup thumbsup thumbsup thumbsup thumbsup thumbsup thumbsup
#147
12th January 2007
Old 12th January 2007
  #147
Gear maniac
 
Scott R. Foster's Avatar
 
Joined: Feb 2006
Location: Jax - FL
Posts: 169

Scott R. Foster is offline
Quote:
Originally Posted by xmostynx View Post
does it really matter what kind of insulation you use?

i'm not that familiar with insulation..but what about wall insulation? thats REALLY thick would that work at all?

and should you wrap the insulation in some kind of plastic to seal it off? insulation fibers=unhealthy to breath in?

i'm getting ready to build m ine..just wondering!!
Yes standard wall insulation will work, but you have to get it pretty thick for standard pink fluffy insulation to work well low in the band. Its not really about density but a related physical property called gas flow resistance that has a linear relationship [of a given material the higher the density, the higher the GFR].

Going from 4" to 24" thick with a higher GFR material like 705 or dense flavors of rockwool gives little reward for all the extra expense. About 4" is the "sweet spot' for efficeincy with such materials.

Using only 4" of a lower GFR material like roll insulation will not work on LF - but 24" of it will perform superlatively all the way across the band.

Mineral wool is not a health risk - but it is a nasty irritant - any breathable fabric cover will do to keep you away from it and vice versa - use the poly film if you want to reject HF as described above.
#148
12th January 2007
Old 12th January 2007
  #148
Gear maniac
 
Joined: Sep 2005
Location: Amsterdam
Posts: 245

macmod is offline
very, very nice!

Are they still pretty 'firm' with the side holes?

Regards,
Macmod
Cojo
Thread Starter
#149
12th January 2007
Old 12th January 2007
  #149
Lives for gear
 
Cojo's Avatar
 
Joined: Dec 2005
Location: Gothenburg, Sweden!
Posts: 1,491

Thread Starter
Cojo is online now
Quote:
Originally Posted by macmod View Post
very, very nice!

Are they still pretty 'firm' with the side holes?

Regards,
Macmod
Yes they are actually!

I wish I did all he traps like this but It's too much work to redo them. Maby in another life or another time!?
#150
12th January 2007
Old 12th January 2007
  #150
Lives for gear
 
David-Morpheus's Avatar
 
Joined: Apr 2006
Location: Slovakia
Posts: 927

Send a message via ICQ to David-Morpheus Send a message via Skype™ to David-Morpheus
David-Morpheus is offline
Hi,

here are a cuple of lousy pictures of the traps I have build - this thread was a big source of information

I have made 7 pieces each si 1250x625x13 mm

guess I need to clean thoose windows , my place is a total mess now I just moved into the new controlroom and am rebuilding the live room and bulding a vocal booth/iso booth
Attached Thumbnails
How I built my bass traps...-traps1.jpg   How I built my bass traps...-traps2.jpg   How I built my bass traps...-traps3.jpg  
New Reply Submit Thread to Facebook Facebook  Submit Thread to Twitter Twitter  Submit Thread to LinkedIn LinkedIn  Submit Thread to Google+ Google+ 
 
Thread Tools
Search this Thread
Search this Thread:

Advanced Search
Similar Threads
Thread
Thread Starter / Forum
Replies
feyshay / So much gear, so little time!
34
SLy_drums / So much gear, so little time!
33
Mr. Dreq / So much gear, so little time!
6
SK1 / So much gear, so little time!
49
TanTan / Mastering forum
12

Forum Jump

SEO by vBSEO ©2011, Crawlability, Inc.