Wharfedale PANTONE 539 - Manual (Page 27)

Your Airedale Loudspeakers have been constructed to the highest standards
of quality furniture finishes.
The acoustic components and the whole system have been manufactured to
within very tight tolerances of +/- 1 decibel of sound pressure level.
All drive unit components are serially numbered and the original test record
set for your loudspeakers is retained on file in our factory quality control
department.
This enables us to give a extended guarantee of identical replacement parts
should they ever be needed.
A copy of these test reports is included in the back of this manual. These
should be retained for future reference.
A certificate of conformance to the original prototype specification,
confirmed by the Airedale designer and engineering director is included
in this pack.
QUALITY MANAGEMENT
Servicing your Loudspeaker 21/01/03 11:09 am Page 8