Although Bohlender-Graebener discontinued the special pricing to the BassList that was instituted in April-May 1997, I was informed that they have renewed the policy. As I understand, Audio-X-treme no longer distributes the Radia line of drivers. Hence one should contact Bohlender-Graebener for further information.
Bohlender-Graebener ... Manufacturer of the Radia and Acculine speaker lines.