please help me

i am currently in iraq im trying to get my info straight so i can go back and build good bass traps. 1st what do people mean when they say strattle corner walls? also which is the best bass trap? what are the ideal place to put then? low, mid/high, high, bass traps what are there differences and where to put them all? i know bass traps on corners i plan to use up to $700 in room treatment to make it the best i can i plan to get acoustic foam and bass traps but am open to other ideas HELP ME OUT SOME ONE SCHOOL ME----- and yes i have been reading about this for the past 2 months

SORRY does a bass trap need to be air sealed? i am planing on making then acording to this DIY http://www.ethanwiner.com/basstrap.html and do i really need 4 traps per corner? (2ft x 4ft x2'') i was thinkin if i couse just make or two 8ft tall ones and put then against the walls on the corners or can i use just one to cover where both corners meet? SORRY I KNOW IM ASKING ALOT BUT I NEED ALOT OF INFO THANKS GUYS

Aloha and welcome to the forum! Congrats on your studio build! Any chance you could please:

Edit your profile to include your location. This is very important, because this is a worldwide resource, and as such, material costs and availability vary widely. For example, masonry is cheaper than gypsum in some parts of the globe, whereas it's the exact opposite in other regions.

You'll probably get more of a response by doing so and this will really come in handy two or three posts down the road. It's also part of the forum guidelines. Thanks! http://www.johnlsayers.com/phpBB2/viewtopic.php?t=7572 http://www.johnlsayers.com/phpBB2/viewtopic.php?t=3231

1st what do people mean when they say strattle corner walls?

See attachment - bass traps highlighted in red

which is the best bass trap?

Those that work.

what are the ideal place to put then?

Usually begin in the four corners of your room. If more is needed, you can place them where the walls meet the ceiling.

i plan to use up to $700 in room treatment to make it the best i can i plan to get acoustic foam and bass traps but am open to other ideas

The general consensus here would suggest a semi-rigid insulation rather than foam. Is either fiberglass or mineral wool insulation, 2"-3" thick, and have a density of 2.5 pounds per square inch (pcf) available in your area? Here's another link for DIY units - http://www.johnlsayers.com/HR/index1.htm Perhaps a search on bass traps & absorbers on this forum will be helpful. Aloha 8)