EVOCA 20P
20W 2-Way Projection Speaker for PA Applications
6
5.1. Speaker Connection
EVOCA 20P sound projector is equipped with a built-in line transformer with 3
power taps, to better adapt each speaker to the type of line (constant voltage @
100V), the power of the amplifier, and the number of speakers in the system.
When connect the speaker to the 100V line, pay attention to wire colors. Please
refer to the following table when connect them to the line.
Wire Color
EVOCA 20P
Black
Ground
Red
5W
Green
10W
White
20W
6. UNDER-POWERING VS OVER-POWERING
Most speaker damages are caused by amplifiers with too little power (wattage).
Overdriven amplifiers clip output waveforms and send distortion to the speakers.
Clipping is usually audible; it may vary from a harsh sound to a fuzzy or unclear
sound.
If you hear this condition at loud volume levels, turn down the amplifier volume
until the distortion is no longer present. Damages caused by operating the speak-
ers at distorted volume levels are no covered by warranty.
NOTE: Total number of speakers multiplied by tap value cannot
exceed the output power (in watts) of the 100V amplifier. If, for
instance, you’re going to install 5 EVOCA 20P sound projectors with
20W power (white wire) on a 100V line, you need an amplifier with at
least 5x20=100W RMS power. A good rule of thumb is to use an am-
plifier with 20% greater power; in this case, an amplifier with 120W or
more.
