Information On Installing Audio Cables; Connection With The Mains - Omnitronic KB-208A User Manual

Occupation jack plug:
Unbalanced use of
mono 1/4" jack plugs
Tip =
Signal (+)
Sleeve =
Ground / Shield
Tip
Sleeve
Strain relief clamp

6.2 Information on installing audio cables

• A good cable run improves the sound quality remarkably. Signal cables should be short and direct, since
high frequencies will mostly be absorbed if cables are unnecessarily long. Besides that a longer cable may
lead to humming and noise trouble. If long cable runs are unavoidable, you should use balanced cables. In
order to obtain highest sound quality, only use high-quality cables for connecting the devices.
• Always treat cables carefully and protect them from damages during transportation.
• Install cables always in a structured way and protect them from damage.
• Cables must be installed in a way that no person can stumble over them. Always fix cables with an
appropriate tape.
• Cables should be installed directly (no loops, S-shaped overlengths).
• Always install cables far away from power cables (never closely parallel).
• Never put heavy objects like speaker systems, flightcases etc. on cables.
• Never operate cables wound up.

6.3 Connection with the mains

Finally, connect the supplied power supply cable to the corresponding input and the mains plug to an outlet
(230 V AC, 50 Hz ~). The speakers can also be operated with 115 V AC, 60 Hz ~. For this purpose, set the
[VOLTAGE SELECTOR SWITCH] to the position [115 V].
Cable Pin
Brown Live
Blue Neutral
Yellow/Green Earth
The earth has to be connected! If the device will be directly connected with the local power supply network, a
disconnection switch with a minimum opening of 3 mm at every pole has to be included in the permanent
electrical installation. The device must only be connected with an electric installation carried out in
compliance with the IEC standards. The electric installation must be equipped with a Residual Current
Device (RCD) with a maximum fault current of 30 mA.
International
L
N
Balanced use of
stereo 1/4" jack plugs
Tip =
hot (+)
Ring =
cold (-)
Sleeve =
Ground / Shield
Tip
Ring
Sleeve
Strain relief clamp
For connection of balanced and
unbalanced plugs, ring and sleeve have
to be bridged at the stereo plug.
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