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3

DO NOT REMOVE COVERS. NO USER
SERVICEABLE PARTS INSIDE.

REFER SERVICING TO QUALIFIED SERVICE
PERSONNEL.

THIS EQUIPMENT MUST BE GROUNDED.

 

IT

SHOULD NOT BE NECESSARY TO REMOVE ANY
PROTECTIVE GROUND OR SIGNAL CABLE
SHIELD CONNECTIONS TO PREVENT GROUND
LOOPS. ANY SUCH DISCONNECTIONS ARE
OUTSIDE THE RECOMMENDED PRACTICE OF
CROWN AND WILL RENDER ANY EMC OR
SAFETY CERTIFICATION VOID.

For continued compliance with international
EMC legislation ensure that all input cables are
wired with the cable screen connected to Pin 1
of the XLR connectors and/or the jack plug
sleeve.

WARNING!

This equipment can create
high sound levels. Exposure
without adequate protection
could cause permanent
damage to hearing.

S a f e t y   I n f o r m a t i o n

Important Safety Instructions

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 instructions.

8) Do not install near any heat sources such as radiators,

heat registers, stoves, or other apparatus that produce
heat.

9) Do not defeat the safety purpose of the polarized or

grounding-type plug. A polarized plug has two blades
with one wider than the other. A grounding-type plug has
two blades and a third grounding prong. The wide blade
or the third prong is provided for your safety. If the
provided plug does not fit into your outlet, consult an
electrician for replacement of the obsolete outlet.

10) Protect the power cord from being walked on or pinched,

particularly at plugs, convenience receptacles, and the
point where they exit from the apparatus.

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 the apparatus. When a
cart is used, use caution when moving the cart/
apparatus combination to avoid injury from tip-over.

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 has been
damaged in any way, such as power-supply cord or plug is
damaged, liquid has been spilled or objects have fallen
into the apparatus, the apparatus has been exposed to
rain or moisture, does not operate normally, or has been
dropped.

This equipment has been tested and found to comply with the following European and international Standards
for Electromagnetic Compatibility and Electrical Safety:

Radiated Emissions

(EU):

EN55013 (1990)

Associated Equipment

RF Immunity

(EU):

EN50082/1 (1992)

RF Immunity, Fast Transients & ESD

Mains Disturbance

(EU):

EN61000/3/2 (1995)

Electrical Safety

(EU):

EN60065 (1993)

Radiated Emissions

(USA):

FCC part 15 Class B

Содержание Pulse 21100

Страница 1: ...Professional Power Amplifier User Manual...

Страница 2: ...Level controls 1 and 2 9 c Bridge switch 9 6 0 Indicators 10 A AC Present 10 B Operate 10 C Fault 10 D Temp 1 2 10 E Signal 10 F Clip 11 G Bridge 11 7 0 Typical applications 12 a Two channel stereo o...

Страница 3: ...rounding type plug has two blades and a third grounding prong The wide blade or the third prong is provided for your safety If the provided plug does not fit into your outlet consult an electrician fo...

Страница 4: ...mplifiers that are capable of maintaining excellent performance when being driven to their limit with real loudspeaker loads Sonic performance is always in the forefront of our minds and to this end t...

Страница 5: ...air so fan filters will not normally be required If however the amplifier is to be used in an environment where the intake air might be excessively dirty optional external fan filters should be purch...

Страница 6: ...60Hz AC power Acceptable AC input supply voltage ranges from 180V to 265V The application of voltages above those specified may cause permanent damage that is not covered by your warranty Lower volta...

Страница 7: ...removable terminal block earth symbol pin pin 1 of the XLR s and the phone jack SLEEVE are internally connected to the chassis The screen of the input cable should always be connected to one of these...

Страница 8: ...Bridge wiring Stereo wiring 1 1 A u d i o C o n n e c t i o n s 1 1 Bridge mono operation To use the amplifier in bridge mode for binding post connection the speakers must be connected between two RE...

Страница 9: ...ely 90dBu with the controls fully counter clockwise to 1dBu with the controls full clockwise 1dBu equals approximately 870mV RMS and this level will be just sufficient with a 4 Ohm load and nominal AC...

Страница 10: ...Under some circumstances the Fault light might flash with a period of about 3 seconds along with the Power light and various clicking noises This is because the processor is trying to power up the amp...

Страница 11: ...ow an impedance speaker load or any other mechanism that causes the output of the amplifier channel to not be as expected by the monitoring circuit Note that if the amplifier channel is muted by the m...

Страница 12: ...more information about how to calculate impedance b Two amplifiers used in bridge mode Here one amplifier is being used per channel As the amplifiers are being operated in bridge mode each is capable...

Страница 13: ...e any impedance between an open circuit and 2 ohms when in stereo and between an open circuit and 4 ohms when bridged When more than 1 speaker is used it is easy to calculate the total impedance but r...

Страница 14: ...r channels to make one channel capable of providing approximately twice the power into a single load This load must be connected across the two positive channel outputs Clip or Clipping The term used...

Страница 15: ...cycle per second is equal to 1Hz The audio band is generally restricted to frequencies of 20Hz to 20 000Hz 20kHz Frequency Response The equipment s relative gain compared to frequency Generally expres...

Страница 16: ...h 10 times 20dB or so above the normal operating level of the audio equipment and may cause distortion if headroom is inadequate Speakon A type of connector manufactured by Neutrik with either 2 4 or...

Страница 17: ...n 0 008 THD 1kHz 1dB below clip 22kHz measurement bandwidth Frequency Response 20Hz to 20kHz 0 0 2dB 2Hz to 120kHz 0 3dB Controls Power switch bridge mode switch indented level controls these may be m...

Страница 18: ...type Speakons are rotated in the socket Problem Distorted sound Check Are the Clip lights on Is any equipment before the amp being over driven Are any speaker cables shorted Are the loudspeakers too...

Страница 19: ...t flashing The Operate and Fault light may be flashing very slowly accompanied by internal clicking A fault has been detected with one or more of the amplifier channels and the processor has shut down...

Страница 20: ...r amplifier This information is available on the Crown website or by contacting Crown Audio Customer Service see details panel 2 To ensure the safe transportation of your unit to the factory ship it i...

Страница 21: ...er the warranty period that the new Crown product is free of defects in materials and workmanship We further warrant the new Crown product regardless of the reason for failure except as excluded in th...

Страница 22: ...n of Harman International Industries Version 2 0 CB 050901 ZM10090 01 Crown Part Number 133785 1 Crown is a registered trademark of Crown International Other trademarks are the property of their respe...

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