Theory - Peavey Architectural Acoustics PZS 140RA Mode D'emploi

Theory

The PZS ™ 140RA is essentially a matrix mixer coupled with four 35 Watt
power amplifiers. To maximize the PZS 140RA for your application, it is
recommended that you have a solid understanding of signal flow, and
how the PZS 140RA provides processing, routing and output.
• INPUTS
The INPUT section includes five preamplifiers, each with their own
inputs and controls. The five inputs are basically stand-alone audio
blocks with a single output. The output terminates to the
microprocessor-controlled bus assign switches. (Each input has its own
set of bus assign switches.) The outputs of the switches connect
directly to the matrix buses.
• MATRIX
The MATRIX includes four buses that allows any of the five inputs to be
assigned to any of the four outputs. This assignment is configured by
using the ASSIGN buttons on the front panel. To simplify the
assignment process, there are buttons for each input and each output
in the matrix.
• OUTPUTS
There are four output sections. The key component of the output
section is the summing amplifier. All four of the matrix buses terminate
to the summing amplifier, which effectively is a 4x1 mixer at the front
of each output. The output section then drives the power amplifier
which includes direct and transformer-coupled output terminals.
The combination of the microprocessor-controlled switches at each input
section and the output summing amplifier creates the actual matrix
function of the PZS 140RA.
P Z S ™ -140RA User Manual
T h e o r y
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