K&F Sona 5 User Manual - page 13
User's manual
K&F SONA 5
KLING & FREITAG GMBH © 2009
Revision 3.0
Page 13 of 19
8.3
Wiring instructions
Important
•
Before connecting your SONA 5 system switch off all equipment and turn down all level con-
trols.
•
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 from one loudspeaker 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
9.
Notes for the Version with '100 Volt' Option
Kling & Freitag speakers with '100V' option are fitted with high-quality transformers. This serves to
minimize loss of sound. Highly professional sound reinforcement results can be achieved using '100 Volt'
Kling & Freitag speakers.
Reasons for choosing Speakers with 100 Volt Transformers:
•
Reduction in conduction loss.
•
Easy installation of a loudspeaker network due to simple parallel wiring. The sum of the output
power of the individual speakers (stated as VA = W) must not exceed the output power of the
100 Volt amplifier.
•
Speakers are galvanically isolated.
•
Speakers can be integrated into existing 100 Volt systems.