Omnitronic VFM-208, Руководство пользователя

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13
5
CONNECTIONS
Choosing an Appropriate Power Amplifier
Connect this speaker system to an appropriate power amplifier, otherwise damage may occur. If several
speakers are connected the impedance decreases correspondingly. Please make sure that the power
amplifier is qualified for your intended use.
Example for the calculation number of speakers/impedance.
Number of speakers ≙ ≙ ≙ ≙ Impedance
1 speaker at 8
Ω
8
Ω
2 speakers at 8
Ω
each 4
Ω
(parallel)
2 speakers at 8
Ω
each 16
Ω
(in line)
3 speakers at 8
Ω
each 2.66
Ω
(parallel)
3 speakers at 8
Ω
each 24
Ω
(in line)
4 speakers at 8
Ω
each 2
Ω
(parallel)
The input impedance of the speaker systems should at least be the same or even higher than the output
impedance of the amplifier.
Making the Connections
1
If the PA system is turned on, turn it off before making any connection.
2
The speaker system is equipped with lockable Speaker sockets. These are connected in parallel. For
locking a connection turn the plug to the right. For unlocking pull the unlock button and turn the plug to
the left and pull it out of the socket.
3
Connect the input jack INPUT to the output of the amplifier.
4
The feedthrough signal is present at the output jack LINK, e.g. for connecting the input of another
speaker system.
Pin occupation of the Speaker jacks:
Information on Installing Audio Cables
• 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.