Need information on Mini Monitors

This is my second time online and I'm working on a project and I need some information. First; Polk's Mini Monitors are they 6 or 8 ohms rated. 2nd; are the mid/woofers 4 or 8 ohms. 3rd; did all the Mini Monitors have Peerless tweeters or did some come with Polk's SL1000 tweeter. I have look on the site but as of yet have not been able to find this information. A big thanks to everyone and anyone that can help me out.