Auralex 2 in. Cornerfills (Grey, Pack of 36)

CornerFills are sections of flat-cut Studiofoam corner acoustic absorbers that are beneficial in 2 ways. Aesthetically, they give you smooth, clean edges against which to butt your acoustic wall treatments and bass traps for a more professional appearance. Acoustically, they smooth out the excess low frequency energy that congregates in room corners.

Auralex offers specialty cut foam products you won't find anywhere else. CornerFills offer you a great way to finish out corners and wall/ceiling junctions. In addition to greatly enchancing the appearance of the room, they also help smooth out your room's low frequency response by helping alleviate boundary loading effects. LENRD Bass Traps are a great solution for those having a low-end build-up in small to medium-sized rooms. We know of no other solution available that offers such superior low-end absorption for such a great price...period!

You can judge a foam's absorptive effectiveness by studying its NRC (Noise Reduction Coefficient), a single number average of a foam's absorption in what was determined long ago to be the most important range. The federally mandated test (ASTM C423) is standardized to cover frequencies between 125Hz and 4000Hz, but when calculating an NRC, only the coefficients from 250Hz to 2000Hz are used to help alleviate the possibility of testing errors.

All Auralex foam products are tested at an independent, unbiased acoustical laboratory--the oldest, most reliable lab in the country. They insist… read more on using only the very best testing facility because they believe the customers deserve the most accurate absorption coefficient information possible.

Flammability: Auralex foam products offer Class B Retardancy. The catalog contains additional testing data and specifications if needed. Auralex encourages you to consult local codes/authorities if there is any question concerning the use of our foam products. Flame retardency on Auralex products has been independently tested as the best in the industry. Some of the "real cheap" products in the marketplace have no flame retardancy at all. read less