User guide
Table Of Contents
- 1) Read these instructions.
- 2) Keep these instructions.
- 3) Heed all warnings.
- 4) Follow all instructions.
- 5) Do not use this apparatus near water.
- 6) Clean only with a dry cloth.
- 7) Do not block any ventilation openings. Install in accordance with the manufacturer’s instructi...
- 8) Do not install near any heat sources such as radiators, heat registers, stoves, or other appar...
- 9) Do not defeat the safety purpose of the polarized or grounding-type plug. A polarized plug has...
- 10) Protect the power cord from being walked on or pinched, particularly at plugs, convenience re...
- 11) Only use attachments/accessories specified by the manufacturer.
- 12) Use only with a cart, stand, bracket, or table specified by the manufacturer, or sold with th...
- 13) Unplug this apparatus during lightning storms or when unused for long periods of time.
- 14) Refer all servicing to qualified service personnel. Servicing is required when the apparatus ...
- 15) To reduce the risk of fire or electric shock, do not expose this apparatus to rain or moisture.
- Table of Contents
- 1 Welcome
- 1.1 Features
- 1.2 How to Use This Manual
- 2.1 Unpack Your Amplifier
- 2.2 Install Your Amplifier
- 2.3 Ensure Proper Cooling
- 2.4 Choose Input Wire and Connectors
- 2.5 Choose Output Wire and Connectors
- Distance
- Wire Size
- 2.6 Wire Your System
- 2.7 Input Sensitivity Switch
- 2.8 Connect to AC Mains
- 2.9 Startup Procedure
- Figure 2.1 CE 1000 and CE 2000 Dimensions
- Figure 2.2 Airflow
- Figure 2.3 Balanced Input Connector Wiring
- Figure 2.4 Unbalanced Input Connector Wiring
- Figure 2.5 Barrier Strip Input Wiring: Balanced Signal In
- Figure 2.6 Neutrik® Speakon® Connector
- Figure 2.7 Output Connector Wiring for Stereo with Optional CEAS1 Output Module.
- Figure 2.8 Optional CEAS2 5-way Binding Post Output Connector (Left) Each Pair of Posts Connects ...
- Figure 2.9 Typical System Wiring, Stereo Mode
- Figure 2.10 Typical System Wiring, Bridge-Mono Mode
- Figure 2.11 Location of Input Sensitivity Switch
- 2 Setup
- 2 Setup
- 2 Setup
- 2 Setup
- 2 Setup
- 3 Operation
- 3 Operation
- 4 Advanced Features and Options
- Figure 4.1 SST-SBSC Crossover Network
- Figure 4.2 SST-4622 Crossover Network
- Figure 4.3 Location of Fault Jack
- Figure 4.4 Fault Status LED Circuitry
- Figure 4.5 RJ-11 Jack Wiring and Pin Assignments
- Figure 4.6 Model CEAS1 Barrier Block Output Connectors
- Figure 4.7 Model CEAS2 5-way Binding Post Output Connectors
- Figure 4.8 Tamper-Resistant Hole Plugs Installed in a CE Series Amplifier
- 4 Advanced Features and Options
- 4 Advanced Features and Options
- 5 Principles of Operation
- Figure 5.1 CE Series Amplifier Block Diagram (Shown with Standard Input Module)
- 8.1 Worldwide Service
- 8.2 US and Canada Service
- Owner’s Name :
- Shipping Address:
- Phone Number: ________________________________Fax Number: ________________________________ Email
- Model: __________________________________________________________________________________ Serial ...
- Purchase Date :
- NATURE OF PROBLEM
- (Be sure to describe the conditions that existed when the problem occurred and what attempts were...
- Other equipment in system:
- If warranty has expired, payment will be: £ Cash/Check £ Visa £ Master Card £ C.O.D. £ Purchase O...
- Card Number:___________________________________ Exp. Date:___________________
- Signature:______________________________________________________________________
- ENCLOSE THIS PORTION WITH THE UNIT. DO NOT MAIL SEPARATELY.
- 9 Warranty
CE Series Power Amplifiers
page 14
Operation Manual
NOTE: For detailed information about
these Crown amplifier features, please
consult the Crown Amplifier Application
Guide, available on the Crown website
at www.crownaudio.com.
4.1 Protection Systems
CE Series amplifiers are protected against
shorted, open or mismatched loads; over-
loaded power supplies; excessive temperature;
chain destruction phenomena; input overload
damage; and high-frequency blowups. They
also protect loudspeakers from input/output
DC, large or dangerous DC offsets and turn-on/
turn-off transients.
4.1.1 Bias Servo
Bias servo translates the output heatsink tem-
perature to controlled bias current. This pre-
vents thermal runaway and holds the amplifier’s
notch distortion to a minimum.
4.1.2 Fault
The amplifier will light the Fault LED on the
front panel if the amplifier output stage stops
operating. If this happens, take the unit to an
authorized Crown Service Center.
4.1.3 Ultrasonic and Radio Fre-
quency Protection
An amplifier's slew rate only needs to be large
enough to deliver the maximum voltage at the
highest required frequency. Higher slew rates
actually let the amplifier reproduce undesirable
frequencies. By design, the CE Series amplifi-
ers have a controlled slew rate to put a fre-
quency limit on the highest frequencies that
they reproduce. This limit occurs well above 20
kHz, so there is no audible effect on perfor-
mance.
This approach protects the amplifier from radio
frequencies and can even protect some sensi-
tive loads (including some tweeters).
4.1.4 Drive Protection
This system temporarily removes output drive
to protect the amplifier and its loads. Drive pro-
tection can be activated in two situations. First,
if dangerous subsonic frequencies or direct
current (DC) is detected in the amplifier's out-
put, drive protection will activate. The amplifier
resumes normal operation when it no longer
detects dangerous output. Activating this pro-
tection is very unlikely, but improper source
signals like infrasonic square waves or a
severely clipped input signal can activate this
system.
Second, the amplifier's fault protection system
puts the affected channel into drive protection
mode in rare situations where heavy common-
mode current is detected in its output. The
amplifier should never output heavy common-
mode current unless its circuitry is damaged.
Activating drive protection helps prevent further
damage.
4.1.5 Compression
A full-time compressor is in-line with the sig-
nal, reducing the risk of damage to your speak-
ers.
4.1.6 Power Circuit Breaker
A front panel push button is used to reset the
circuit breaker that protects the power supply.
4.1.7 Proportional-speed Fan
The speed of the cooling fan is controlled by
the transformer temperature and the heatsink
temperature.
4.2 Advanced Features
4.2.1 Crown SST Modules
Crown optional SST (System Solution Topolo-
gies) modules were specially designed to
improve the fidelity and versatility of your audio
system. They feature a variety of professional
signal routing and filtering capabilities, with
active crossovers that allow the audio signal to
be split and sent to auxiliary amplifiers. Your
amplifier may have come with an SST module
already factory-installed, or your choice of SST
modules can be easily added to the amplifier by
any authorized Crown Service Center.
For information on wiring and configuration of
amplifiers equipped with an optional Crown
SST crossover module, please refer to the SST
Crossover Reference Manual included in your
literature package.
Refer to the following descriptions for an over-
view of available Crown SST crossover mod-
ules. Crown plans to release additional
accessory plug-in modules offering a range of
advanced features and capabilities. Watch for
new releases:
SST-MX Crossover
Features include:
• Stereo biamp.
• 100-Hz fixed crossover with 24-dB/octave
Linkwitz-Riley tuned filters.
•Neutrik
®
Combo 1/4-inch (6.35-mm) and
XLR input jacks.
• Barrier block balanced outputs.
• Optional high-pass filter bypass on ampli-
fied outputs adapts system for full-range
use.
SST-SX Crossover
Features include:
Mono-summed sub-bass output for biamp
operation of subs.
• 23-dB/octave Linkwitz-Riley tuned filters.
• Crossover switchable between 800 and
120 Hz.
•Neutrik
®
Combo 1/4-inch (6.35-mm) and
XLR input jacks.
• Male 3-pin XLR outputs.
Optional high-pass filter bypass on amplified
output adapts system for full-range use.
4 Advanced Features
and Options