I have an oppurtunity to buy a pair of sda srs series speakers for a reasonable price. I know there not jbls but still a decent sounding speaker. the problem i have is on one of the speakers is the mid range drivers, theres 8 of them, have a sticky substance and it appears that someone had the grill cover off while doing wood working of some sort. there is sawdust embedded in the sticky material on the drivers. Is there any way of getting it off without ruining the drivers? any ideas or suggesstions would be appreciated.THANKS JIM