Bests & Worsts Reviews from Amazon

I am a safety professional by occupation. I did pre-installation and post installation sound level meter readings. With Dynamite Extreme, the sound level dropped by 5 decibels. Some of the 1-star posts complained they only had a 5 decibel drop in sound level. Sound intensity DOUBLES with every 3 decibel increase. So, a reduction of 5 decibels means you actually cut the sound level intensity significantly with Dynamat. Most of us perceive one sound to be twice as loud as another one when they are about 10 dB apart; for instance, a 60-dB air conditioner will sound twice as loud as a 50-dB refrigerator. Yet that 10-dB difference represents a tenfold increase in intensity. A 70-dB dishwasher will sound about four times as loud as the 50-dB refrigerator, but in terms of acoustic intensity, the sound it makes is 100 times as powerful.