User's Manual
K&F ‘SW’ Series Subwoofer Systems
KLING & FREITAG GMBH ©1998 - 2015
Version 5.1, 29.05.2015
Page 24 of 24
9.2
Operations with K&F System Controller
For optimal performance and operating safety we recommend using a K&F System
Controller. Instructions for use, connecting diagrams and detailed descriptions of the
latest controller models ‘CD 24’ and ‘CD 44’ you can find in the corresponding user’s
manuals.
10.
Operating the Speakers
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Switch off all equipment and turn down all level controls.
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Wire your subwoofer systems.
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Please pay attention to the user’s manual of your power amplifier!
−
Upon completing the wiring, ensure that the connected speakers are working in
phase. To do so, use i.e. a phase checker. A phase error can also be recognized when
the connected channels are used simultaneously. During simultaneous use the bass
frequencies become notably quieter or the mid-frequencies such as voices cannot be
located.
−
Now switch on the peripheral equipment first (mixing console, effects etc.), followed
by the K&F System Controller and lastly the power amplifiers. Always use the before
mentioned switching order. Otherwise switching noises may damage the system.
−
If there is interference, turn off all appliances in the reverse order and check all cable
connections (see chapter 8.2 ,
Avoiding Ground Loops
).
−
Successively turn up the individual power amplifier channels and send a signal
with low volume to the system. Check to see if the desired signals are applied to
the intended speakers and make sure there is no interference. Make sure every-
thing works properly, i.e. if the signals come from the correct speaker paths (high
signals from the tweeters, bass signals from the bass speaker). Your system should
now be ready for operation.
Important
