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CE 4000
Power Amplifi er
Operation Manual
page 14
Figure 5.4 Low-
Pass Filter
Switch
PFC, however, compensates for phase differ-
ences in the power supply, allowing more true
power to be transferred to the amplifi er. The
result is more power with less waste than any
other conventional switching or non-switching
design.
As an added benefi t, PFC also allows the amp
to be connected to any common AC line volt-
age, without converting the power supply. This
means that whether you’re running one or two
amps on a household circuit or several amps
on a power distro, your CE 4000 amplifi ier is
ready—right out of the box.
5.3 Other Features
5.3.1 Low Pass Filters
For each channel, a back-panel, three-position
switch provides optional settings of Flat (Left),
80 Hz (center) and 100 Hz (right) with an
18-dB per octave rolloff (see Figure 5.4). The
80- and 100-Hz settings may be selected when
the amplifi er is being used to drive a bass
program. The FLAT setting provides bypass
of the low-pass fi lters, for use either when a
crossover is provided elsewhere in the system,
or when the signal is full-range.
Figure 5.5 Speakon Pin Assignments
5.3.2 Neutrik Speakon Wiring
The Neutrik Speakon NL4 connector is a four-
pole type, which allows either one or two sets
of speakers to be wired to one connector.
Figure 5.5 shows the wiring pin assignments.
5.4 Options
5.4.1 SST Modules
Crown’s optional SST (System Solution Topol-
ogies) modules were specially designed to
improve the fi delity and versatility of your
audio system. They feature a variety of pro-
fessional signal routing and fi ltering capabili-
ties. Your amplifi er may have come with an
SST module already factory-installed, or your
choice of SST modules can be easily added
to the amplifi er by any authorized Crown
Service Center. For information on available
SST modules, visit the Crown website at
www.crownaudio.com.
5.4.2 Output Connectors
For added system fl exibility, Crown offers
optional output connector confi gurations for
your amplifi er. If you prefer, you can choose
to have dual Neutrik Speakon
®
output connec-
tors (model CE4E) or 5-way binding post plus
barrier strip (model CE4C) connectors installed
in your amplifi er in place of the standard Neu-
trik Speakon
®
plus 5-way binding post outputs
(model CE4D) at time of ordering. For informa-
tion on adding optional output connector mod-
ules to an existing CE 4000 amplifi er, please
contact Crown Technical Support (see Section
8 for contact information).
5.4.3 Handle Kit
Handles complement your amplifi er’s appear-
ance, aid in transportation, and the placement
in or removal from racks. They are available
from Crown’s Sales Department.