How to Compare NRC to NRC
An NRC rating is simply a value per Sq ft of material of absorption. Let me simply; its comparison for you if a room needed 1,400 Sq ft sabins reduction.
It would take 1,400 Sq ft of NRC 1.00
It would take 1,000 Sq ft of NRC 1.40
It would take 2,000 Sq ft of NRC .70
It would take 2,800 Sq ft of NRC .50
It would take 4,000 Sq ft of NRC .35
Believe it or not, our NRC (frequency) 1.40 at 1,000 Sq ft has been "or equaled" to a competitors NRC .35 at 1,000 Sq ft! My point? ... We are not talking slight differences here! They actually provided ¼ the desired effect! When you know how to compare apples to apples, Perdue Acoustics is the best value in the country. (Probably the world!)
Now please allow me to make another point. An NRC rating averages 4 frequencies, 250 Hz, 500 Hz, 1,000 Hz, and 2,000 Hz. Back years ago when this system was developed, tweeters and subwoofers were not even in common use. We are creating 10 times the low frequency energy we used to. For this reason, Perdue Acoustics always posts its low 125 Hz test frequency absorption. It is important and we are consistently superior to all other products in this area as well!
Perdue Acoustics: Honesty, Integrity, Innovation, and Value!