User's Manual
K&F SCENA 12
KLING & FREITAG GMBH © 2018
Version 1.2
Page 10 of 31
Unless this is impossible due to speaker placement or the general stage setting, be sure to
take appropriate measures including, for example, using cable bridges in order to avoid
tripping.
If necessary, use the main ports located at the bottom. In this case, too, be sure to avoid any
risk of tripping.
3.3
Protecting the Speakers, Reliability
Be sure to connect the K&F SCENA 12 speaker to a K&F SystemAmp, a K&F SystemRack, or a
linear power amp with up to 750 Wrms per channel (8 ohms) only.
Never feed audio at excessive levels to the speaker. Mixing consoles, equalizers, effect
units, etc. can produce clipping; excessive levels are normally visible on meters and through
indicators. Clipping at the power-amp output is typically shown by a red clipping indicator. In
any case, be sure to lower the signal level once it sounds distorted.
The built-in overload protection serves to protect the loudspeaker in case of high load
on the loudspeaker, such as feedback over a longer period of time. For this purpose, the
loudspeaker is completely separated from the signal. The interruption is cancelled after
about 10 seconds.
In no event, Kling & Freitag will warrant against any damages caused be excessive input levels
and cannot accept liability for any consequential damages.
Signals that may damage the speakers include the following:
•
Continuous high-volume signals at high frequencies, continuous audio feedback
•
Continuously distorted signals at high levels
•
Sounds occurring when connecting, disconnecting, or switching on a device on the
audio system while the speaker is on
Never place your speakers
•
where they are permanently exposed to direct sunlight,
•
where they are exposed to high moisture,
•
where they are exposed to strong vibrations or dust.
Damage Caused by the Speaker’s Magnetic Fields
Even when not connected, loudspeakers continuously produce a magnetic field. Therefore,
when transporting or placing the speaker, be sure to keep a minimum distance of about
1 meter between the speaker and magnetic disks or computer/video displays.
3.4
Preventing Hearing Damage
Caution
Keep your distance from operating speakers. This equipment is capable of delivering sound
pressure levels in excess of 90dB SPL, which may cause permanent hearing damage.