Unconditional Guarantee:

We guarantee that you will be 100% satisfied with your purchase.  If for any reason you are not, please contact our office within 45 days of purchase and we will make it right or upon return in like-new condition, fully refund the merchandise purchase price.  You are liable only for shipping


Fibonacci Transducer™ Motors are warranted for five years from date of purchase, we will repair or replace at our option.

Warranty of the Ribbon Diaphragm is two years for mechanical failure. 
(In the rare case of mechanical failure, in general all that is required is re-tensioning and this can usually be accomplished on site with no special tools, all that is required is a 1/8” Allen wrench, steady hands and a magnifying glass).

As we have not been able to accomplish thermal failure in our lab (i.e. actually re-annealing or melting the aluminum diaphragm), there is no warranty for it.  But if someone can do it, we would really like to know how. 

All crossover components and internal wiring are warranted for five years from date of purchase.

There is no warranty for binding post thread stripping. 

We want you to be 100% thrilled with your purchase.  We deeply, sincerely believe
that enduring quality is the most significant virtue of any product, and we appreciate
and respect your pride of owning the best.

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