Easy Milk Crate Bass Trap

[Jesse Eastman]

I just built a couple of extremely easy bass traps out of rolls of R-19 cotton bat insulation and milk crates. It's almost as simple as just leaving the insulation in the bag and putting it in the corner. I rolled up the bat like a sleeping bag and shoved it into a milk crate, I then did the same to another crate -- turned it upside-down, and zip tied it to the first crate. This could be done all the way up the corner. I'm planning on just covering it with some cloth. The crates are light so hanging isn't a problem either.

[Glenn Kuras]

you get a A+ for the day!thumbsup

[LunaBlue]

I have a question. This is a cheap and easy solution, but i was curious as to how effective it is. I have a small room with only one free corner (furniture, cabinets, etc. Take up the others). But i do have some floor/wall space i could give up on either side of the mix position. My room is about 12 x 9 x 8, so i have a low end null where i mix, and a peak towards the rear of the room where i always setup the vocal mic. Any thoughts on if this would help me? Also i was wondering if the clear plastic wrap should be removed from the insul rolls? I would like to keep the fibers contained if it doesnt affect the low end absorption.

[Jesse Eastman]

Yes the plastic wrap should be removed. The milk crates accomplish the same thing as building a frame out of lumber and chicken wire (which a lot of people do). Ultra Touch insulation has been proven to be effective and it packs dense enough, and thick enough, in a milk crate.

[DjA]

excuse me if this is a dumb question that is addressed in a larger thread, but these R-19 rolls - they are cotton, is that something that is not normally available at a home depot / lowes type place?

in other words, is this not the same thing?

CertainTeed 6-1/4 In. x 15 In. x 93 In. R19 Kraft Batt - 900985 at The Home Depot

[mobius.media]

Originally Posted by DjA

excuse me if this is a dumb question that is addressed in a larger thread, but these R-19 rolls - they are cotton, is that something that is not normally available at a home depot / lowes type place?

in other words, is this not the same thing?

CertainTeed 6-1/4 In. x 15 In. x 93 In. R19 Kraft Batt - 900985 at The Home Depot

Ultratouch:
Bonded Logic - Natural Cotton Fiber Insulation

Their distributors are online. E-mail them for more. R21 is actually better than R19 if you can get it. It comes 16" or 24" wide per bat. Very affordable, very effective.

[KyleDiSanto]

Ultra Touch Left in its bags make a GREAT low end absorber. Some Big Mastering Studios in NYC do it that way...

[Jesse Eastman]

Yes, that's the stuff. I bought mine online. Just do a search for it. Prices aren't bad.

[Blind]

can you post some pics of your traps?

Would be cool... great idea by the way

[Strobian]

Originally Posted by Jesse Eastman

I just built a couple of extremely easy bass traps out of rolls of R-19 cotton bat insulation and milk crates. It's almost as simple as just leaving the insulation in the bag and putting it in the corner. I rolled up the bat like a sleeping bag and shoved it into a milk crate, I then did the same to another crate -- turned it upside-down, and zip tied it to the first crate. This could be done all the way up the corner. I'm planning on just covering it with some cloth. The crates are light so hanging isn't a problem either.

Is there anyway to know what freq's it absorbs or where the cutoff point is? How did it work for sub freqs under 80HZ?

[slowjett]

Originally Posted by KyleDiSanto

Ultra Touch Left in its bags make a GREAT low end absorber. Some Big Mastering Studios in NYC do it that way...

Wouldn't Roxul AFB be just as if not more effective? Its more cost effective like this I assume, after all an 8ft high room would need two bags of Ultra Touch per corner to go from floor to ceiling. At 59 a bag thats more expensive than the 34 per bag for the Roxul which would cover the same amount of space.

Does this make sense?

[Glenn Kuras]

Originally Posted by slowjett

Wouldn't Roxul AFB be just as if not more effective? Its more cost effective like this I assume, after all an 8ft high room would need two bags of Ultra Touch per corner to go from floor to ceiling. At 59 a bag thats more expensive than the 34 per bag for the Roxul which would cover the same amount of space.

Does this make sense?

I am not sure if it is better but will work pretty much the same.