User manual

1-2 P1200A User Manual
Input Stage
HF-Protect
Highpass
switchable
EQ
VCA
Power Amplifier
2-way box
with passive
crossover
Configuration
Level
control
Mute
switch
Analysis of
cone
displacement
Analysis of
voice coil
temperature
Block diagram of a typical C or E-Series system
1.2. C-Series and E-Series system design
The C and E-Series feature a range of compact loudspeaker
models which cover nearly every sound reinforcement application.
All these systems are operated with a related controller module
fitted in a P1200A mainframe or with a suitably configured E-PAC.
The loudspeakers are designed in such a way that they develop
their maximum efficiency when operated with their respective
controllers.
The two power amplifiers in the P1200A mainframe can each
deliver 600 W into a 4 ohm load and each mainframe can house
two controller modules - one per mainframe output. Each output
will normally drive up to two cabinets. With E3 cabinets, up to four
loudspeakers can be driven per channel.
Installing two identical modules in a single mainframe creates a
stereo subwoofer or mid/high system depending on the modules
used. Alternatively, single mainframes can be fitted with different
modules to create a single channel TOP/SUB system. The modular
nature of these mainframe systems allows later expansion and/or
reconfiguration.
E3, E9, C6 and C7-TOP are full range speakers with two passively
separated drivers. The product range is graded according to
dispersion characteristics, maximum sound pressure and size.
In the high frequency range they all have CD dispersion
characteristics. CD is the abbreviation for "Constant Directivity"
and means that the dispersion angle of the systems does not vary
with frequency. CD characteristic is a practical consideration for
operating several loudspeakers in a cluster arrangement. To
simplify arraying, C and E-Series cabinets have prcecisely angled
rear side walls defined according to the cabinets' horizontal
coverage.