Crossover 102 - Electronic
Crossovers - Page 8
Raising or lowering anyone of the bandpass output levels affects
how the drivers interact at these crossover points. It is for
this reason that once a performance begins any changes to the
system should be executed via of the overall system EQ and
NOT at the crossover.
In this article we have addressed most of the issues regarding
the setting up of an electronic crossover for a typical sound
system. Up until recently we were limited to working with the
above outlined parameters when adjusting the typical analog
variable electronic crossover. In recent years so much has
changed with the introduction of high quality affordable electronic
digital signal processors or DSP. In the next article (Part
III) "Crossovers 2001+", we will address the world of DSP.
Much of traditional thinking regarding crossover operation
is pretty much out-the-window when it comes to signal processing
in the digital domain. There are a lot more variables and many
more ways to mess things up. However, the power of today's
DSP technology allows those with the proper knowledge and measurement
tools, to calibrate sound reinforcement systems to a degree
of accuracy never before possible. Please read Part III for
the information that will bring you into the 21st Century regarding
digital signal processing.
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