It is my understanding that Raidho Acoustics previously had two high end product lines which were labeled Eben and Ayra, with the latter (Ayra) aimed at ultimate performance. Not sure if Eben was trickle down performance from Ayra or Ayra was a hot rodded Eben approach. It appears as if Raidho has now elected to concentrate on ultimate performance and as such dropped the Eben line in which case the Ayra label was no longer required.
