User's manual
K&F SONA SUB
KLING & FREITAG GMBH © 2010
Revision 1.2
Page 16 of 21
7.
Wiring
Warning
Electrical current of loudspeaker signal may be hazardous for the human body.
Always make sure the connectors secured against touch when the equipment is in use.
When�using�the�Phoenix�connector:
To guarantee the protection against contact on the Phoenix connector, you may only use the provided
4-pin Phoenix plug. This is also the case even if you only use two of the Phoenix connector’s pins.
Always fully insert bared wire ends into the Phoenix plug such that bared parts of wire can not be
touched.
The bared wire ends have to be accurately screwed into the plugs.
When�using�the�Speakon�connector:
The Phoenix connector is connected in parallel to the Speakon connector.
To guarantee protection against contact on the Phoenix connector, the provided 4-pin Phoenix plug
must be plugged in during use. This is also the case even if you just use the Speakon connector. With-
out the Phoenix plug, the Phoenix connector’s contacts have hazardous contact voltage!
7.1
Wiring�instructions
Important
•
Before connecting your SONA SUB 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
Summary of Contents for SONA SUB
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