Will,
You can find the SoundStage at the Klipsch Homepage. Klipsch.com, then click on the Aragon link. Klipsch bought Aragon/Mondial Designs last year. They only show the latest version of the SoundStage on the site. It has DPLII etc. I'm going to contact them in the next few weeks about upgrading to DPLII after I receive my unit.
Mix