KLING & FREITAG K&F SCENA 15 - Manual (Page 13)

User's manual K&F SCENA 15
KLING & FREITAG GMBH © 2010 Revision 1.0 Page 13 of 18
6.3 Operations�with�an�Additional�Subwoofer
If you want to operate the SCENA 15 with an additional K&F subwoofer, you must activate the filter
button B (100Hz mode) on the CD 44 for the SCENA 15. In doing so, you will get an optimal coupling
to the K&F subwoofer systems.
1�Channel�Mode
Activate 'Filter B' for the
LSBlock [SCENA 15 1CH].
2�Channel�Mode
Activate 'Filter B' for the LSBlocks
[SCENA 15 2CH LF] and [SCENA 15 2CH HF.].
If necessary, adjust the correct level balance with the output gain of the subwoofer on the CD 44.
7. Wiring�instructions
Important
• Before connecting your SCENA 15 loudspeaker switch off all equipment and turn down all level
controls.
• Only use high-quality speaker cables with a sufficient wire gauge. The wire gauge depends on
the length of the speaker cable.
Minimum�Wire�Gauge�(mm²)
=�Required�Cable�Length�(m)�/�(2�x�Speaker�Impedance�(Ω))
• For connections to the power amplifier inputs, please use 2-pin shielded microphone cable (bal-
anced) with high-quality connectors.
• Avoid ground loops.
• Please pay attention to the pin assignments shown in this manual.
• Make sure that the +/- polarity of the speakers at the amplifier is correct. When simultaneously
using power amplifiers from different manufacturers, be sure to use the correct specific pin con-
figuration. It may be necessary to modify the pin configuration on the power amplifiers or on
the connectors leading to them.
• Upon completing the wiring, ensure that the connected speaker channels 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.
• If several loudspeakers are connected, the signal can be linked through parallel from one loud-
speaker to the next. Please make sure that the total impedance of the loudspeakers R(Ω) is not
lower than the minimal impedance indicated on the power amplifier.
1/R1�+�1/R2�+�1/R3�+�...�=�1/Rtotal