How I built my bass traps... - Page 2

Acoustic Cloud · 28th September 2006, 07:44 PM

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 · 28th September 2006, 07:48 PM

Quote:

Originally Posted by bpape

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 · 28th September 2006, 07:53 PM

Quote:

Originally Posted by Acoustic Cloud

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

s-cube · 28th September 2006, 08:04 PM

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 · 29th September 2006, 11:08 AM

Quote:

Originally Posted by s-cube

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 · 29th September 2006, 11:10 AM

Here is some more pictures. In this picture the frames has just been painted.

Cojo · 29th September 2006, 11:12 AM

This is the strips that's gonna cover up the staples that's holding the fabric in the front of the traps.

rolo95 · 29th September 2006, 08:47 PM

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.

Bendybones · 29th September 2006, 09:12 PM

Quote:

Originally Posted by Cojo

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 · 29th September 2006, 09:25 PM

Quote:

Originally Posted by Bendybones

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 · 29th September 2006, 09:34 PM

Quote:

Originally Posted by rolo95

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

rolo95 · 29th September 2006, 10:00 PM

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.

Acoustic Cloud · 30th September 2006, 07:26 AM

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?

The dman · 30th September 2006, 11:30 AM

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.

Cojo · 30th September 2006, 11:52 AM

Quote:

Originally Posted by dsd

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 · 30th September 2006, 12:22 PM

Quote:

Originally Posted by Acoustic Cloud

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 · 30th September 2006, 01:49 PM

Here are the last of the pictures. This is the fabric ready to be stapled.

Cojo · 30th September 2006, 01:51 PM

The staples are in and the fabric is getting trimmed.

Cojo · 30th September 2006, 01:53 PM

Here you can see why I want to hide the staples.

Cojo · 30th September 2006, 02:03 PM

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.

Cojo · 30th September 2006, 02:11 PM

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?

Acoustic Cloud · 30th September 2006, 05:03 PM

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......

matucha · 30th September 2006, 10:02 PM

This is how my construction goes:

orange · 30th September 2006, 10:20 PM

Quote:

Originally Posted by Cojo

/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 ..... ???

orange · 30th September 2006, 10:21 PM

PS - just wanted to remind people who are using this (excellent) thread to plan their own bass traps....

DIY Broadband Absorber - pictures posted

matucha · 30th September 2006, 10:24 PM

...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

The dman · 1st October 2006, 01:43 AM

..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

GoJiRa 3000 · 1st October 2006, 02:01 AM

thank you so much for sharing..i luv this forum

tonymite · 1st October 2006, 03:25 AM

Quote:

Originally Posted by GoJiRa 3000

thank you so much for sharing..i luv this forum

Acoustic Cloud · 1st October 2006, 03:54 AM

Quote:

Originally Posted by dsd

..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.........

28th September 2006, 07:44 PM	#31
Acoustic Cloud Lives for gear Join Date: Jun 2006 Location: around the corner Posts: 1,968	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.... __________________ If the Earth wasnt created, where'd all the dirt come from?

29th September 2006, 11:10 AM	#36
Cojo Lives for gear Join Date: Dec 2005 Location: Gothenburg, Sweden! Posts: 1,465	Here is some more pictures. In this picture the frames has just been painted. Attached Thumbnails __________________ Conny Johansson [ www.asteroidkiller.com ]

29th September 2006, 11:12 AM	#37
Cojo Lives for gear Join Date: Dec 2005 Location: Gothenburg, Sweden! Posts: 1,465	This is the strips that's gonna cover up the staples that's holding the fabric in the front of the traps. Attached Thumbnails __________________ Conny Johansson [ www.asteroidkiller.com ]

30th September 2006, 07:26 AM	#43
Acoustic Cloud Lives for gear Join Date: Jun 2006 Location: around the corner Posts: 1,968	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? __________________ If the Earth wasnt created, where'd all the dirt come from?

30th September 2006, 01:49 PM	#47
Cojo Lives for gear Join Date: Dec 2005 Location: Gothenburg, Sweden! Posts: 1,465	Here are the last of the pictures. This is the fabric ready to be stapled. Attached Thumbnails __________________ Conny Johansson [ www.asteroidkiller.com ]

28th September 2006, 08:04 PM	#34
s-cube Gear maniac Join Date: Sep 2006 Location: Pakistan Posts: 274	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!

29th September 2006, 08:47 PM	#38
rolo95 Gear nut Join Date: Jun 2006 Posts: 80	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.

29th September 2006, 10:00 PM	#42
rolo95 Gear nut Join Date: Jun 2006 Posts: 80	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.

30th September 2006, 01:51 PM	#48
Cojo Lives for gear Join Date: Dec 2005 Location: Gothenburg, Sweden! Posts: 1,465	The staples are in and the fabric is getting trimmed. Attached Thumbnails __________________ Conny Johansson [ www.asteroidkiller.com ]

30th September 2006, 01:53 PM	#49
Cojo Lives for gear Join Date: Dec 2005 Location: Gothenburg, Sweden! Posts: 1,465	Here you can see why I want to hide the staples. Attached Thumbnails __________________ Conny Johansson [ www.asteroidkiller.com ]

30th September 2006, 02:03 PM	#50
Cojo Lives for gear Join Date: Dec 2005 Location: Gothenburg, Sweden! Posts: 1,465	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 __________________ Conny Johansson [ www.asteroidkiller.com ]

30th September 2006, 02:11 PM	#51
Cojo Lives for gear Join Date: Dec 2005 Location: Gothenburg, Sweden! Posts: 1,465	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? __________________ Conny Johansson [ www.asteroidkiller.com ]

30th September 2006, 05:03 PM	#52
Acoustic Cloud Lives for gear Join Date: Jun 2006 Location: around the corner Posts: 1,968	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...... __________________ If the Earth wasnt created, where'd all the dirt come from?

30th September 2006, 10:02 PM	#53
matucha Lives for gear Join Date: Dec 2002 Location: Prague, Czech Republic Posts: 1,916	This is how my construction goes: Attached Thumbnails __________________ Matous Godik

30th September 2006, 10:21 PM	#55
orange Lives for gear Join Date: Jul 2004 Location: London Posts: 1,653	PS - just wanted to remind people who are using this (excellent) thread to plan their own bass traps.... DIY Broadband Absorber - pictures posted

30th September 2006, 10:24 PM	#56
matucha Lives for gear Join Date: Dec 2002 Location: Prague, Czech Republic Posts: 1,916	...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 __________________ Matous Godik

1st October 2006, 01:43 AM	#57
The dman Lives for gear Join Date: Nov 2003 Location: Illinois Posts: 792	..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

1st October 2006, 02:01 AM	#58
GoJiRa 3000 Gear maniac Join Date: Jun 2006 Posts: 196	thank you so much for sharing..i luv this forum