I'm interested in picking up a set of Alpine Type "R" tweeters to go along with my Alpine SPR-176A 6 1/2" component set. I'd like to run 4 tweeters upfront for a more open soundstage. Does anyone know if Alpine sells these tweeters as serperate components?

Upfront, I'll be using two channels of a Hifonics Son of Olympus amp for the Alpine 6 1/2" components, and was thinking about using an Alpine CDA - 9815 to power two additional Type "R" tweeters.