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8 – VRS12 and VRS18
VRS12 and VRS18 – 9
5. OPERATION
Signal Processing
The loudspeakers have no internal crossover, allowing maximum power transfer to the
woofers. External signal processing is required to shape the line-level signals before they
reach your power amplier. The recommended high-pass, low-pass, and EQ setting are
shown in the specications table on the next page.
Choosing a Power Amplier
There is no exact answer to the question of what amplier size you should use for a
loudspeaker. The loudspeaker power rating in EAW Commercial’s specications only means
it has passed a standard power test. This provides a rating that can be used as a point of
comparison with other loudspeakers. This rating does not necessarily correspond to the best
amplier size to use nor is it a measure of a “safe” amplier size to use. Rather, the amplier
should be sized according to both the sound levels required and the type of audio signals
that will be reproduced. If you are unsure of how to determine this, consult with a qualied
professional or contact EAW Commercial Technical Support.
Preventing damage to the loudspeaker is a function of operating your audio system so
that the loudspeaker is not stressed beyond its design limits.
Operating Tips
• Do NOT drive any of your electronic equipment into clipping, particularly the power
ampliers. This can easily damage the loudspeaker.
• If driven into clipping, even an amplier with a power output rating lower than the
loudspeaker’s power rating can cause damage to a loudspeaker.
• Avoid sustained microphone feedback. This can quickly cause failure of high-
frequency drivers in your system.
• Avoid extreme boosts on equalizers as these can cause excessive input to the drivers
at the boosted frequencies. Generally, cutting frequencies is preferred to adjust the
frequency response.
• With appropriate signal processing, your loudspeaker should produce exceptionally
good sound. If it is used in a room with problematic acoustics, there is little you can
do to overcome the room problems with electronic adjustments. Your best solution
is careful placement and aiming of the loudspeaker so most of the sound is directed
only at the audience.
• Most EAW Commercial loudspeakers are capable of sound levels that can be
damaging to human hearing. Take precautions so that audiences are not exposed
to such levels. If you must expose yourself to these kinds of volume levels, wear
adequate hearing protection.
• Take care when moving or lifting the loudspeaker. Injury to you or damage to the
loudspeaker can result from careless handling.