Tannoy VS10 BP, Руководство пользователя, Страница: 6 / 15

optimal crossover points are also afforded by the introduction of a system
controller.
A loudspeaker driven actively as shown below offers a number of other
performance advantages, such as increased system headroom. Audio program
materiel is made up of many different frequencies and harmonics. In music
materiel, most of the energy is in the low frequencies, with less in the highs. When
both high and low frequencies are present in a signal, the stronger low
frequencies can use up amplifier power, leaving little or no reserve for the highs,
so they are more likely to cause the power amplifier to clip. In an active driven
system, a smaller amp can handle high frequencies, LF amp clipping is less of a
factor, and less overall amplifier capacity is needed due to the efficiency
improvement in the absence of a passive crossover.
5. Amplification & Power Handling
As with all professional loudspeaker systems, the power handling is a function of
voice coil thermal capacity. Care should be taken to avoid running the amplifier
into clip (clipping is the end result of overdriving any amplifier). Damage to the
loudspeaker will be sustained if the amplifier is driven into clip for any extended
period of time. Headroom of at least 3dB should be allowed. When evaluating an
amplifier, it is important to take into account its behaviour under low impedance
V series
-
+
TO INPUT
V series
+
-
+
- -
+
POWER AMP
POWER AMP
TX CONTROLLER
OR ELECTRONIC X-OVER
FROM
SOURCE
+
-
+
-