Corner bass traps 3 super quick questions please

andy3 · 26th June 2011

Hello guys. I have smart questions:

-Have I to keep the perimeter of the bass trap attached to the side walls of the corner (airtight) or do I keep a little space?

-Have I to fill all the angle corner interspace covered by traps or could it remain empty as well?

-I would like to cover bass (Corner) traps with cellophane vs kraft paper, in order to avoid fiberglass flight around the room.
What do you recommend me between kraft and cellophan? (I want one of those only)

Thank you really mate!

Starlight · 27th June 2011

Bass trap perimeters - if you can leave a gap behind the traps you will get better performance from them. The usual recommendation is to leave as big a gap as the traps are. eg. If you have a 100mm trap, leave a 100mm gap.

Filling the corner angle - for the cheapest option you can just straddle the corners but of you can fill them you will get better performance. If your room is on the small side (less than 45 cubic metres (or, IIRC, 1500 cubic ft), I think you would do well to fill the corners.

Cellophane or kraft paper - the usual recommendation is a material that you can blow through. Either of you choices will act as a reflector for high frequencies whilst allowing mid and low frequencies to pass through. By all means try it with one of them but also test them (as in listen and also take readings) with them in place without either cellophane or kraft paper. That will help you decide what is the right thing to do.

andy3 · 29th June 2011

thx :-)

Glenn Kuras · 29th June 2011

If you are straddling the corner it is best to keep the edges touching the side walls as it helps the panel act in a spring action. But if you have a frame around the trap then that should be like touching the walls. I have never tested spacing out the panel from the corner, but would think it would help a bit. There would though be a point of negative results I would also thing. If you want to play it safe then touch the sides to the walls as that is proven to work.

andy3 · 9th July 2011

thanks you too Glenn

Yep I don't want to go straddling way I want to go for a custom bass trap way (frame ecc) then I can cover a custom area and eventually I can fill less or more the angle back. Depending upon the needs.

ritelec · 9th July 2011

Hey Andy,

Search superchunks and saddled bass traps.

Superchunk (either light fluffy or dense) is a larger saddle and completely filled to corner. Built saddle trap is dense trap and air to corner.

Measurements will help you decide if you would like to cover either style trap to help keep mids/highs. Also will help you determine if you want to use Superchunk method (for lower frequencies) or straddled with airgap (low,mid).

Avoiding fiberglass flight. Unless your working with it or have a high speed fan blowing on it, it really doesn't fly. Using material to cover the trap should be enough, then if you would like to add some mid/highs back, you could add wood slats. (search 5,4,3 or 3,4,5).

andy3 · 9th July 2011

thx! I don't think I want to put the woods on angles-traps to increase high and mids in that specific position, anyway I will consider your precious advices.

:-)

ritelec · 9th July 2011

I am not knowing, I only hope what I stated is correct .

26th June 2011	#1
andy3 Lives for gear Joined: Jan 2010 Location: Italy Posts: 677 Thread Starter	Corner bass traps 3 super quick questions please Hello guys. I have smart questions: -Have I to keep the perimeter of the bass trap attached to the side walls of the corner (airtight) or do I keep a little space? -Have I to fill all the angle corner interspace covered by traps or could it remain empty as well? -I would like to cover bass (Corner) traps with cellophane vs kraft paper, in order to avoid fiberglass flight around the room. What do you recommend me between kraft and cellophan? (I want one of those only) Thank you really mate! __________________ Killer Boots Man! http://www.youtube.com/watch?v=VGu0B6kL9eM

29th June 2011	#4
Glenn Kuras Gear Guru Joined: Jul 2005 Location: Atlanta, GA Posts: 12,007	If you are straddling the corner it is best to keep the edges touching the side walls as it helps the panel act in a spring action. But if you have a frame around the trap then that should be like touching the walls. I have never tested spacing out the panel from the corner, but would think it would help a bit. There would though be a point of negative results I would also thing. If you want to play it safe then touch the sides to the walls as that is proven to work. __________________ Glenn Kuras GIK Acoustics USA GIK Acoustics Europe 770 986 2789 (USA) +44 (0) 20 7558 8976 (UK) See the NEW Scopus Tuned Trap

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search

Similar Threads
Thread	Thread starter	Forum	Replies	Last Post
How I built my bass traps...	Cojo	Bass traps, acoustic panels, foam etc	1190	3 Hours Ago 05:14 AM
Bass Traps by Ikea	Joost	Bass traps, acoustic panels, foam etc	18	15th July 2008 04:35 AM
About the low end of corner bass traps	Ydope	Low End Theory	34	9th March 2007 10:22 PM
Help! Can Bass traps take away too much bass?	Watersound	So much gear, so little time!	18	6th March 2007 02:54 PM
what is and is not a bass trap ....	fatgaz	Low End Theory	64	29th December 2006 09:15 AM

27th June 2011	#2
Starlight Gear maniac Joined: Mar 2011 Location: UK & Slovakia Posts: 254	Bass trap perimeters - if you can leave a gap behind the traps you will get better performance from them. The usual recommendation is to leave as big a gap as the traps are. eg. If you have a 100mm trap, leave a 100mm gap. Filling the corner angle - for the cheapest option you can just straddle the corners but of you can fill them you will get better performance. If your room is on the small side (less than 45 cubic metres (or, IIRC, 1500 cubic ft), I think you would do well to fill the corners. Cellophane or kraft paper - the usual recommendation is a material that you can blow through. Either of you choices will act as a reflector for high frequencies whilst allowing mid and low frequencies to pass through. By all means try it with one of them but also test them (as in listen and also take readings) with them in place without either cellophane or kraft paper. That will help you decide what is the right thing to do.

9th July 2011	#5
andy3 Lives for gear Joined: Jan 2010 Location: Italy Posts: 677 Thread Starter	thanks you too Glenn Yep I don't want to go straddling way I want to go for a custom bass trap way (frame ecc) then I can cover a custom area and eventually I can fill less or more the angle back. Depending upon the needs.

9th July 2011	#6
ritelec Lives for gear Joined: Aug 2010 Location: New Jersey, USA Posts: 1,293	Hey Andy, Search superchunks and saddled bass traps. Superchunk (either light fluffy or dense) is a larger saddle and completely filled to corner. Built saddle trap is dense trap and air to corner. Measurements will help you decide if you would like to cover either style trap to help keep mids/highs. Also will help you determine if you want to use Superchunk method (for lower frequencies) or straddled with airgap (low,mid). Avoiding fiberglass flight. Unless your working with it or have a high speed fan blowing on it, it really doesn't fly. Using material to cover the trap should be enough, then if you would like to add some mid/highs back, you could add wood slats. (search 5,4,3 or 3,4,5).