biggb20042001

how do you like those crescendo FT1 super tweeters?

i'll start by listing my setup: headunit- alpine w505 processor- alpine h701 w/optical cable mids/highs- 2 sets front/rear polk audio mm6501 & 1 set polk audio db1001 tweeters mids/high amp- alpine pdx4.150 subs- 2 sundown audio sa-10d4s sub amp- sundown saz-1500dv2 i want to go active with my setup but dont know what to do with these polks. they are 2.7ohms. i was planning on getting another amp to run tweeters. then i wanted to add some 4'' speakers to the front/rear pillars and get there own amp. and use the alpine 4.150 on the 6.5 in the doors. i have total 4 mm tweeters that are 2.7 ohms 2 db tweeters that are 4 ohms and thats my problem. dont know how to wire to get ohms right and what kinda amp i need for them.