Greetings, first post. I read a thread about speakers, when is good enough, enough? It got the synapses in my frontal lobe working in the woodlot today. You have a lot of time to think when all day you are turning large pieces of wood, into smaller pieces of wood. What I was thinking about was sound wave pressure distortion at the atomic level. What I am speaking toward involves acoustic suspension speakers at rest after playing a full side of a vinyl record like Pink Floyd's, The Wall. If there are no gaps between the songs, listen very careful when the side is complete, you may hear a distinct pfffft sound. Since the airbox affords an air-tight seal, the pressure in the box passes through the woofer cone material and makes this sound. When a woofer oscillates during the formation of sound, it sends forth a pressure wave of compressed air molecules,the forward most atoms being the wave front comes into contact with airborne particulate matter. Depending on the humidity level of the air mass, and how clean the air filter is on your furnace, or if you have any air purity handling systems in the home, this particulate distorts the leading face of the wave, leaving the surface dimpled. This, in turn, causes a back-pressure affect on the woofer of what I will call Particulate Hyper Articulate Resonance Tension. Since the atoms attempt to articulate around the particulate, it causes the remaining atoms behind the pressure front to get backed up. An easy fix for this phenomenon is a commercial product call Febreeze, for it sticks to the airborne particulate and causes it to fall harmlessly to the floor. Also, if you have a room sized air ionizer, it will help with the foul smell of the positively charged ions. So, if you find that your woofers have a tendancy to PHART, use Febreeze. Keep a smile on, Doofiss.
