A little shot of de-oxit got my EPI M110 tweeters going. These are the speakers someone replaced the woofer with Pyle drivers. I have not checked on the quality of the pyle drivers but they are quite heavy for 8" woofers. I need to do some extensive listening to decide if they are keepers. I do need some info regarding the inverted-dome tweeters. What are there best qualities, rare looks, musical qualities, etc.?