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Since the enclosure is sealed, the increase in
group delay at low frequencies (Figure 8) is quite
Figure 9 Cumulative spectral decay (waterfall)
The spectral decay plot of the loudspeaker
reveals excellent decay and an absence of
3. Warranty Information
All K+H products undergo an extensive pro-
cedure of quality control testing before leaving
the factory. Before semiconductors are mounted
on the circuit board, they are subject to rigorous
tests. Every single unit is guaranteed to match
its technical specifications within strict pre-
determined tolerances.
Please store the original carton in a safe, dry
place. If you should ever need warranty service,
put the unit in its original packing material and
carton together with a detailed description of the
problem, and ship it (freight prepaid) to our
distributor or directly to:
KLEIN + HUMMEL GmbH
Customer service
Zeppelinstrasse 12
73760 Ostfildern / Germany
Page 10
minimal, resulting in particularly tight, precise
bass response.
unwanted overtones and standing waves.
K+H warrants, that the product is free from any
defects in both material and manufacturing and
that it meets the specifications. A warranty case
can only be acknowledged under condition that
the complaint is filed to our distributor or to us in
writing within 8 days after delivery or detection
of the fault. Not covered under this warranty are
damages due to inexpert packing and shipment,
wear and tear, improper handling, installation,
operation and maintenance.
The limitation period for warranty claims is
described in the terms and conditions of K+H
GmbH. Its our choice to repair, to supply a new
product or to withdraw from the contract.
In the event warranty service is required,
presentation of a warranty card will not be
necessary. Proof of purchase date can be made
by filing copies of appropriate documents (in-
voice, delivery note).
Active Studio Monitor O 300 D
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