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7 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 oer 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 nd 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 oer an outstanding solution. All models can be used
as a limiter: the audio signal doesn’t overdrive any more, and unpleasant
“peaks” are eectively 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 amplier. Both the outputs and inputs are stereo. A full-range
VP series loudspeaker is connected to each of the amplier outputs, and these
loudspeakers reproduce the entire frequency range.
EP2000VP1520
XENYX 1202FX
L R
Fig. 5.1: Full-range stereo operation
5.2 Full-range stereo operation
with oor 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 oor monitors. Two separate monitor outputs from the mixing
console are connected to the inputs of a stereo power amplier. A VP1220F is
connected to each amplier output, and a second VP1220F is connected to the
parallel outputs of the rst set of VP1220F monitors.
L
AUX 1
SEND
AUX 2
SEND
R
EP2000
VP1220
VP1220F
X2442USB
Fig. 5.2: Full-range stereo operation with oor 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 amplier. A VP series loudspeaker is connected to each of the amplier
outputs. The low-frequency signal is connected to an additional power amplier,
which powers two VP1800S subwoofers.
EP2000
L L
L R
RR
VP1220 VP1800S
SUPER-X PRO
CX2310
XENYX 1202FX
Fig. 5.3: Two-way stereo operation with subwoofers