I did a search on SMC but could not find any threads on the new Gyro Air dust collector. I have an Oneida 3 hp system that is absolutely fantastic except the noise is unbearable. It registers 80 dB at the cyclone and 70dB 20' away inside the shop. My only interest in the new Gyro Air is their claim of 61 - 72 dB depending on the speed you run it at. It's a variable speed unit. I am not knowledgeable on dB values but I do realize they are not linear. I have no concept of how much quieter 70 dB is than 80 dB except for my measuring the values of my Oneida DC at the cyclone and then 20' away as stated above. Can anyone tell me what percentage quieter 70 dB is than 80 dB. Thanks.
http://www.woodcraft.com/product/162...processor.aspx