That's a standard disclaimer from most high end speaker manufacturers due to the fact there are some test cd's out there which could damage your speakers, however I can tell you from experience the Isotek full system enhancer cd definitely should not harm your speakers providing you play the cd at sane listening levels. Isotek also provide a similar assurance in the liner notes. Btw, I have no afilliation to Isotek, just a happy end user :)

Me too, used Ayre's burn in CD to burn my Salon2, Q3,Q7,SCC. Without this, those woofers didn't want to move much.
Toga

S5 won the SoundStage 2013 Products of the Year award (Outstanding Performance stereo speaker category):

SoundStageNetwork.com | SoundStage.com | 2013 Product of the Year Award Winners