User manual

(5.0E) 5-3
The parallel wired connectors fitted to all C-Series and E-Series
loudspeakers allow the mainframe output signal to be looped from one
cabinet to another dispensing with the need for signal distribution boxes.
P1200A stereo configuration
For stereo use the mainframe is fitted with two controller modules of the
same type - either two modules for full range systems (E3, E9, C6,
C7-TOP, C4-TOP) or two modules for active subwoofer systems
(C4-SUB, C7-SUB, E18-SUB).
The left controller module (INPUT A) drives the upper mainframe output
connector (OUT CHANNEL A), the right module drives the lower one
(OUT CHANNEL B).
Up to two loudspeaker cabinets - four in the case of E3 loudspeakers -
may be connected to each of the two P1200A mainframe output
channels. A single speaker cable can be used between each mainframe
output and the first cabinet on that output channel, with second and
subsequent cabinets ‘daisy-chained’ using short link cables from cabinet
to cabinet.
P1200A mixed configuration
If a mainframe is fitted with mixed modules, one TOP module and one
SUB module, INPUT A relates to the TOP controller, INPUT B to the SUB
controller.
Normally both will be operated with the same input signal, i.e. the signal
is connected to INPUT A and then - using a short signal link cable - fed
from the INPUT LINK connector of INPUT A to INPUT B.
The output signals for subwoofer and mid/high cabinets will appear on
both output connectors. This means that it does not matter which
mainframe output a subwoofer or full range cabinet is connected to,
whether directly or via a link connection to another cabinet, each type
of cabinet will pick off from the four core speaker cable the pair of
conductors with the appropriate drive signal.
With mixed modules two full range cabinets (E3: four) plus two
subwoofers can be driven using a single cable from either mainframe
output with the first cabinet connected directly to the mainframe output
channel and second and subsequent cabinets ‘daisy-chained’ using short
link cables from cabinet to cabinet.
P1200A mono configuration
With mainframes fitted with a single controller module and a mono
adapter, only one input connector is active. INPUT A in the case of a
TOP mono configuration, INPUT B in the case of a SUB mono
configuration.
The same mono signal will appear on both mainframe output
connectors. Note however, that each connector is driven by a separate
mainframe power amplifier channel. Up to two cabinets (E3: four) can
be driven from each output connector.
With the mono configuration it is not possible to drive all the cabinets
using a single loudspeaker cable connected to just one of the mainframe
outputs - this would connect all the loudspeakers to just one mainframe
power amplifier channel.