I have a pair of EPI 200's, but don't know series 1,2 etc. Mine have the 12" passives, but I can't remember the original tweeters as they had come apart and I've since bought several inverted domes to use. Also the woofers were not original (radio shack polys if I remember). I have some Burhoe Red woofers which are similar to EPI's but with larger magnets and voice coils. Should I buy some EPI woofers, and if so, what are compatible models to work with the 200 cabinets?