Bass traps for punchy warm sound in your room 12" x 8" x 8" (4 PACK) - ROOMSONIC acoustic foam bass trap corner

Read some reviews where some were saying the product didn't fully expand ? Even after 3 days? My product arrived at the time Amazon said it would PLUS full expansion in less then 24 hours? It took 4 to 5 hours. My room was warm (due to it being chilly in Atlanta that day) could be the factor.

Same appearance as amazon website. Expands fully after a day. Very light used 1 command 3M strip each to stick to the wall. Used the ones good for 2 kilos as an overkill.

These worked well in my sound studio for recording , deadens the echo also deadens the Bass well in the corners of the room ...I bought both the corner pieces and also the wall pieces ....you can always add more if needed to reach your goal ....

There inexpensive and they work, The smell takes a long time to disapate, and they take a day or two to expand.

shipped quickly, compressed down much smaller for shipment as shown. all 4 foam bass traps have since expanded to nearly the specified 12"x8"x8" size. Haven't tested performance, but seems like this product will work as expected! perfect for the DIY recording/listening space.

Still having issues with wall adherence. # types of tape have not held up as yet.

These arrived quickly after my order, and I installed them in my home studio the day after receiving them. The bass response already seems much more controlled and has really helped make my room more comfortable for mixing.

Did everything it says, fill your corners like I did the sound difference is imminent unless you have a crap set up anyway