Fuses; Protecting Your Equipment; Application Examples; Full-Range Stereo Operation - Behringer Eurolive VP1220F User Manual

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EUROLIVE VP2520/VP1800S/VP1520/VP1220F/VP1220 User Manual

4.3 Fuses

We do not recommend the use of fuses with loudspeaker applications. Damage to
loudspeakers can be the result of high peak signals and high output power.
However, fuses can only offer protection from one of these two factors, and never
from both. Additionally, fuse resistances are sometimes nonlinear, leading to
distortion and unpredictable overdriving.

4.4 Protecting your equipment

• Always try to find the optimal signal level. Avoid overdriving your amp
• Keep in mind the physical limitations of your PA system
• Use a limiter to restrict the output signal level. Place the limiter between
the mixing console and the power amp. For this purpose, our proven
AUT O-XL MDX1600, COMPOSER PRO-XL MDX2600 and MULTICOM PRO-XL
MDX4600 compressors offer an outstanding solution. All models can be used
as a limiter: the audio signal doesn't overdrive any more, and unpleasant
"peaks" are effectively avoided
◊
Our ULTRADRIVE PRO DCX2496 and SUPER-X CX3400/CX2310 crossovers
are particularly well-suited for protecting your equipment: for each
output, they have independent limiters.

5. Application Examples

5.1 Full-range stereo operation

This example applies to the VP1220, VP1220F, VP1520, and VP2520.
In this example, the main output signal of a mixing console is connected
to a power amplifier. Both the outputs and inputs are stereo. A full-range
VP series loudspeaker is connected to each of the amplifier outputs, and these
loudspeakers reproduce the entire frequency range.
XENYX 1202FX
L
VP1520 EP2000
Fig. 5.1: Full-range stereo operation
5.2 Full-range stereo operation
with floor monitors
This example applies to the VP1220, VP1220F, VP1520, and VP2520.
This example is a variation of the example above, with the addition of several
VP1220F floor monitors. Two separate monitor outputs from the mixing
console are connected to the inputs of a stereo power amplifier. A VP1220F is
connected to each amplifier output, and a second VP1220F is connected to the
parallel outputs of the first set of VP1220F monitors.
R
X2442USB
L
R
EP2000
VP1220
VP1220F
Fig. 5.2: Full-range stereo operation with floor monitors
5.3 Two-way stereo operation with a crossover,
full-range loudspeakers and subwoofers
This example applies to the VP1800S in combination with the full-range
loudspeakers (VP1220, VP1520, and VP2520).
Using an external active crossover, the main output signal of a mixing console is
split into two signals. One signal covers the lower frequency range and the other
signal covers the mid and high frequency range. The recommended crossover
frequency is 150 Hz. Then, the mid-high frequency signal is connected to a stereo
power amplifier. A VP series loudspeaker is connected to each of the amplifier
outputs. The low-frequency signal is connected to an additional power amplifier,
which powers two VP1800S subwoofers.
XENYX 1202FX
L
SUPER-X PRO
CX2310
L R
EP2000
VP1220
Fig. 5.3: Two-way stereo operation with subwoofers
AUX 2
SEND
AUX 1
SEND
R
L R
VP1800S