Speaker Clarifiers?

If you got great speakers you should not need these.

Aren't the various crystals on the market supposed to have the same effect as the  Speaker Clarifiers?

I have not tried the audio magic clarifiers but do have the walker audio HDL's & can say they are a worthwhile tweek. Greater stage definition & a cleaner top end (without roll off) with my Tekton's. 

In the category of : Things you should not spend money on until after you've hired an acoustic consultant.

Things you should not spend money on until after you've hired an acoustic consultant.

... or had your ears checked by a good audiologist