5 AMPLIFICATION
Wavefront Touring loudspeakers are designed to be used with professional
power amplifiers capable of producing the following power outputs into 4
ohms:
W8
450-650W
W8S
550-1000W
Care should be taken to avoid amplifier clipping. It is important to
understand that a low power amplifier driven into clipping is more likely
to damage a loudspeaker than a higher power amplifier used within its
ratings. This is because music signals have a high peak-to-average
"crest" factor. When an amplifier is severely overdriven, its output
waveform is clipped (its peaks are squared off) – reducing the crest
factor. In extreme cases, the waveform can approach that of a square
wave. An amplifier is normally capable of producing far more power
under these conditions than its undistorted rated power output.
The use of very high power amplifiers with outputs greater than those
recommended is discouraged.
Care should be taken to avoid switch-on surges, which can result in
momentary power peaks in excess of specified ratings. When powering
up a sound system it is important to switch on the amplifiers after the
mixer and control electronics have stabilised. When powering down the
system, reverse the sequence and switch off the amplifiers first.
Martin Audio – WAVEFRONT TOURING SERIES
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