Crown XLC 2500 取扱説明書

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モデル: XLC 2500

カテゴリー: 補助楽器

タイプ: 取扱説明書

Operation Manual

XLC 2500

XLC 2800

XLC Series Power Ampliers

操作手册

XLC系列功率放大器

获取其他语言版本：如果您需要其它语言版本的产品使用说明，请联系当地的Crown产品零售商。

如果您需要查询您当地的零售商以便获取帮助，请致电+1(574)294-8000 与Crown公司联系。

本手册不包含相关设备设计、生产或变更的所有详细信息。也不涵盖设备安装、操作或维护过程中

可能出现的每种情况。

本手册里提供的信息在出版时为准确无误。然而，我们仍可能在出版本手册后更新相应内容。如果

您需要获取本手册的最新版本，请登录Crown的官方网站www.crownaudio.com。

商标声明：Crown、Crown Audio 与 Amcron 是 Crown International 的注册商标。HiQnet 是

Harman International Industries, Inc. 的商标。其他商标均为其各自所有者的财产。

部分型号的产品可能是以Amcron

的商标出口。

46517-9439 U.S.A. 电话号码：+1(574)294-8000

Obtaining Other Language Versions: To obtain information in another language about the use of this product, please

contact your local Crown Distributor. If you need assistance locating your local distributor, please contact Crown at +1 (574)

294-8000.

This manual does not include all of the details of design, production, or variations of the equipment. Nor does it cover every

possible situation which may arise during installation, operation or maintenance.

The information provided in this manual was deemed accurate as of the publication date. However, updates to this information

may have occurred. To obtain the latest version of this manual, please visit the Crown website at www.crownaudio.com.

Trademark Notice: Crown, Crown Audio and Amcron are registered trademarks of Harman International. Other trademarks

are the property of their respective owners.

Some models may be exported under the name Amcron

+1 (574) 294-8000

5034994-C

03/14

XLC

2800

FAULT

CLIP

SIGNAL

CH 2

CH 1

XLC

2500

FAULT

CLIP

SIGNAL

CH 2

CH 1

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XLC Series Power Ampliers

XLC系列功率放大器

page 2

Operation Manual

操作手册

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. Install in accordance with the manufacturer’s instructions.

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

reg isters, stoves, or other apparatus (including ampliﬁers) 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, par-

ticularly at plugs, convenience receptacles, and the point where

they exit from the apparatus.

11. Only use attachments/accessories speciﬁed by the manufac-

turer.

12. Use only with a cart, stand, tripod, 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 nor-

mally, or has been dropped.

15. Use the mains plug to disconnect the apparatus from the mains.

16. WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC

SHOCK, DO NOT EXPOSE THIS APPARATUS TO RAIN OR

MOISTURE.

17. DO NOT EXPOSE THIS EQUIPMENT TO DRIPPING OR

SPLASHING AND ENSURE THAT NO OBJECTS FILLED

WITH LIQUIDS, SUCH AS VASES, ARE PLACED ON THE

EQUIPMENT.

18. THE MAINS PLUG OF THE POWER SUPPLY CORD SHALL

REMAIN READILY OPERABLE.

Important Safety Instructions

重要的安全说明

1. 请阅读这些说明。

2. 请妥善保管这些说明。

3. 请留意所有警告。

4. 请遵守所有这些说明。

5. 请勿在靠近水的地方使用本产品。

6. 清理时只能使用干布。

7. 请严格按照制造商提供的操作说明进行安装。

8. 不要将本产品直接安装在任何热源，比如散热

器、电热器、火炉或者其他产生热量的设备（包

括功放）上。

9. 不要破坏具有安全功效的极性插头或者接地式插

头。极性插头有两个插脚，一个宽，一个窄。接

地式插头有两个插脚和一个接地插脚，其中宽插

片或者接地插脚是用来保障您的安全的。如果所

提供的插头不适合您的插座，请咨询联系电工更

换适合的插座。

10. 保护电源线。避免电源线被踩踏或者被捻搓。特

别注意保护在插头、便捷插座和电源线接出设备

处的电源线。

11. 仅使用制造商指定的附件和配件。

12. 仅使用制造商指定的或者随本产品一同出售的载

车、支架、三角架、托架或者工作台。在使用推

车运输设备时，特别注意推车及设备，避免其翻

倒造成伤害。

13. 在有雷电时或者长时间不使用本产品时，请拔掉

本产品的插头。

14. 所有维修服务必须由有资格的维修人员提供。当

设备受到任何形式的损坏时，比如电源线或者插

头被损坏，液体或者异物掉入设备，遭受雨淋或

受潮，不能正常工作，以及被摔碰等情况，都需

要维修。

15. 应采用断开主电源线与市电插座连接的方法来断

开产品与电源的连接。

16. 警告：为降低失火或者电击的风险，不要让设备

遭受雨淋或者受潮。

17. 不要将产品放置在容易遭受滴漏或者喷洒的地

方。例如，不要将装有液体的物品，比如花瓶等

放到设备上。

18. 请确保电源插头可随时插拔使用。

WATCH FOR THESE SYMBOLS:

注意这些符号：

The lightning bolt triangle is used to alert the user to the risk of electric

shock.

闪电三角形符号用来提示用户注意电击的危险。

The exclamation point triangle is used to alert the user to important

operating or maintenance instructions.

感叹号三角形符号用来提示用户重要的操作或者维护说

明。

TO PREVENT ELECTRIC SHOCK DO NOT REMOVE TOP OR BOTTOM COVERS. NO

USER SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED SERVICE

PERSONNEL.

为了避免电击，请不要拆卸设备。设备内部无用户可以自行维护的部

件。请向有资格的服务人员咨询。

TO COMPLETELY DISCONNECT THIS EQUIPMENT FROM THE AC MAINS, DISCON-

NECT THE POWER SUPPLY CORD PLUG FROM THE AC RECEPTACLE. THE MAINS

PLUG OF THE POWER SUPPLY CORD SHALL REMAIN READILY OPERABLE.

要完全断开此设备与交流电主线的连接，请把电源线插头从交流电插

座中拔出。需要连接电源时，可再次将电源线插头插入交流电插座。

此设备仅按海拔2000m进行安全设计与评估，因此，仅

适用于在海拔2000m以下安全使用，在海拔2000m以上

使用时，可能有安全隐患。

此设备仅按非热带气候条件进行安全设计与评估，因

此，仅适用于在非热带气候条件下安全使用，在热带

气候条件下使用时，可能有安全隐患。要完全断开此

设备与交流电主线的连接，请把电源线插头从交流电

插座中拔出。需要连接电源时，可再次将电源线插头

插入交流电插座。

WARNING: THE APPARATUS WITH CLASS I CONSTRUCTION SHALL BE CONNECTED TO

A MAINS SOCKET OUTLET WITH A PROTECTIVE EARTHING CONNECTION.

警告：I类结构的设备应当连接到带保护接地连接的电网电源输出插座上。

FCC COMPLIANCE NOTICE

This device complies with part 15 of the FCC rules. Operation is subject to the following two

conditions: (1) This device may not cause harmful interference, and (2) this device must accept

any interference received, including interference that may cause undesired operation.

CAUTION: Changes or modiﬁcations not expressly approved by the party responsible for compli-

ance could void the user’s authority to operate the equipment.

NOTE: This equipment has been tested and found to comply with the limits for a Class B digital

device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable

protection against harmful interference in a residential installation. This equipment generates,

uses, and can radiate radio frequency energy and, if not installed and used in accordance with

the instruction manual, may cause harmful interference to radio communications. However, there

is no guarantee that interference will not occur in a particular installation. If this equipment does

cause harmful interference to radio or television reception, which can be determined by turning

the equipment off and on, the user is encouraged to try to correct the interference by one or more

of the following measures:

• Reorient or relocate the receiving antenna.

• Increase the separation between the equipment and receiver.

• Connect the equipment into an outlet on a circuit different from that to which the receiver is

connected.

• Consult the dealer or an experienced radio/TV technician for help.

MAGNETIC FIELD

CAUTION! Do not locate sensitive high-gain equipment such as preampliﬁers directly above or below the

unit. Because this ampliﬁer has a high power density, it has a strong magnetic ﬁeld which can induce hum

into unshielded devices that are located nearby. The ﬁeld is strongest just above and below the unit.

If an equipment rack is used, we recommend locating the ampliﬁer(s) in the bottom of the rack and the

preampliﬁ er or other sensitive equipment at the top.

磁场

警告！不要把敏感的高增益设备，如前置放大器或大型录音机直接放在其上或者旗

下，因为此功放具有大功率密度，形成强磁场，这种磁场会使靠近的未屏蔽的设备

产生嘈杂声。扩音器的上部和下部磁场最强。

如果使用设备架，我们建议把功放放在架的底部，把前置放大器或者其他敏感设备

放在架顶。

XLC系列功率放大器

Operation Manual

page 3

操作手册

XLC Series Power Ampliers

DECLARATION of CONFORMITY

European Representative’s Name and Address:

David Budge

10 Harvest Close

Yateley GU46 6YS

United Kingdom

Equipment Type: Power Ampliﬁers

Family Name: XLC series

Model Names: XLC2500, XLC2800

EMC Standards:

EN 55103-1: 2009 EMC Compatibility – Product Family Standard for Audio, Video, Audio-Visual and Entertainment Lighting Control Apparatus for Professional Use, Part 1: Emissions

EN 55103-1: 2009 Magnetic Field Emissions – Annex A @ 10cm and 20cm

EN 61000-3-2: 2006 Limits for Harmonic Current Emissions (equipment input current less than or equal to 16A

EN 61000-3-3: 2008 Limitation of Voltage Fluctuations and Flicker in Low-Voltage Supply systems Rated Current less than or equal to 16A

EN 55022: 2010 Limits and Methods of Measurement of Radio Disturbance Characteristics of ITE: Radiated & Conducted, Class B Limits

EN 55103-2: 2009 EMC Compatibility – Product Family Standard for Audio, Video, Audio-Visual and Entertainment Lighting Control Apparatus for Professional Use, Part 2: Immunity

EN 61000-4-2: 2008 Ed 2.0 Electrostatic Discharge Immunity (Environment E2-Criteria B, 4k V Contact, 8k V Air Discharge)

EN 61000-4-3: 2010 Ed 3.2 Radiated, Radio-Frequency, EMC Immunity (Environment E2, Criteria A)

EN 61000-4-4: 2007 Electrical Fast Transient/Burst Immunity (Criteria B)

EN 61000-4-5: 2006 Surge Immunity (Criteria B)

EN 61000-4-6: 2006 Immunity to Conducted Disturbances Induced by Radio-Frequency Fields (Criteria A)

EN 61000-4-11: 2004 Voltage Dips, Short Interruptions and Voltage Variation

Safety Standards:

IEC 60065:2001 Ed 7 +A1:2005 +A2:2010 Safety Requirements – Audio, Video, and Similar Electronic Apparatus

CAN/CSA 60065-03 +A1 +A2 Safety Requirements – Audio, Video, and Similar Electronic Apparatus

UL Std No 60065-03 (2012) Safety Requirements – Audio, Video, and Similar Electronic Apparatus

I certify that the product identiﬁed above conforms to the requirements of the EMC Council Directive 2004/108/EC and the Low Voltage Directive 2006/95/EC.

Signed

Jeff Denman

Senior Director, Operations

ISSUED BY: Harman International

1718 W. Mishawaka Road

Elkhart, Indiana 46517 U.S.A.

Crown International, Inc.

Date of issue: September 06, 2013

XLC Series Power Ampliers

XLC系列功率放大器

page 4

Operation Manual

操作手册

1. 欢迎 ................................................................. 5

1.1 特点 ................................................................... 5

1.2 如何使用本手册 ......................................................... 5

2. 安装 ................................................................. 6

2.1 拆箱 ................................................................... 6

2.2 安装功放 ............................................................... 7

2.3 保证正常散热 ........................................................... 7

2.4 连接至CXM2000扬声器优化/监听系统 ....................................... 8

2.5 可选：选择凤凰头作为输入接口 ........................................... 9

2.6 选择输出连接线和接口 ................................................... 9

2.7 连接系统 .............................................................. 10

2.7.1 立体声模式 ....................................................... 10

2.7.2 并行模式 ......................................................... 10

2.7.3 桥接模式 ......................................................... 11

2.8 连接到电源 ............................................................ 11

2.9 保护您的扬声器 ........................................................ 11

3. 操作 ................................................................ 12

3.1 预防措施 .............................................................. 12

3.2 启动步骤 .............................................................. 12

3.3 前面板 ................................................................ 13

3.4 后面板 ................................................................ 14

4. 高级功能和选项 ...................................................... 15

4.1 保护系统 .............................................................. 15

4.1.1 输出电流限制 ..................................................... 15

4.1.2 故障 ............................................................. 15

4.1.3 交流电压过低保护 ................................................. 15

4.1.4 过热 ............................................................. 15

4.1.5 断路器（复位键） ................................................. 15

4.1.6 输出接口防触摸保护壳 ............................................. 15

5. 故障诊断 ............................................................ 16

6. 产品规格 ............................................................ 18

7. 服务 ................................................................ 23

8. 保修 ................................................................ 26

Table of Contents

1. Welcome ............................................................................................. 5

1.1 Features ......................................................................................................................................................... 5

1.2 How to use this manual .................................................................................................................................. 5

2. Setup .................................................................................................6

2.1 Unpacking ...................................................................................................................................................... 6

2.2 Installing the ampliﬁer .................................................................................................................................... 7

2.3 Ensuring Proper Cooling ................................................................................................................................ 7

2.4 Wiring to the CXM2000 Monitor and Crossover System ................................................................................ 8

2.5 Alternative: Choosing Phoenix Connectors as Input Connectors .................................................................... 9

2.6 Choosing Output Wiring and Connectors ...................................................................................................... 9

2.7 Wiring Your System ..................................................................................................................................... 10

2.7.1 Stereo Mode ..................................................................................................................................... 10

2.7.2 Parallel Mode ................................................................................................................................... 10

2.7.3 Bridge Mode ..................................................................................................................................... 11

2.8 Connecting to AC Mains .............................................................................................................................. 11

2.9 Protecting Your Speakers ............................................................................................................................. 11

3. Operation .......................................................................................... 12

3.1 Precautions .................................................................................................................................................. 12

3.2 Startup Procedure ........................................................................................................................................ 12

3.3 Front Panel ................................................................................................................................................... 13

3.4 Rear Panel .................................................................................................................................................... 14

4. Advanced Features and Options ................................................................ 15

4.1 System Protection ........................................................................................................................................ 15

4.1.1 Output Current Limiting.................................................................................................................... 15

4.1.2 Fault ................................................................................................................................................. 15

4.1.3 AC Under Voltage Protection ............................................................................................................ 15

4.1.4 Thermal ............................................................................................................................................ 15

4.1.5 Circuit Breaker (Reset Button) .......................................................................................................... 15

4.1.6 Output Connector Security Cover ..................................................................................................... 15

5. Troubleshooting ................................................................................... 16

6. Speciﬁcations ..................................................................................... 18

7. Service ............................................................................................. 22

8. Warranty ........................................................................................... 24

XLC系列功率放大器

Operation Manual

page 5

操作手册

XLC Series Power Ampliers

1. Welcome

Thank you for purchasing the Crown

XLC series ampliﬁer. The XLC2500 and XLC2800 are specially designed for cinema

applications. By connecting it to the Crown CXM2000 monitor and crossover system, you can monitor either the processor

input signals or the ampliﬁer output signals. You can also see the fault alarms directly on the CXM2000 front panel or TMS

(Theater Management System) interface. Together with JBL BC series cinema speakers and Crown CXM2000, Crown XLC

series ampliﬁers offer a perfect cinema audio solution.

1.1 Features

• Two models of 500W (XLC2500) and 800W (XLC2800) per channel at 4 ohms.

• Compatible with JBL cinema speaker 3722(N), 4722(N), 3730, 3252(N), 4641, 4642A, 8320, 4181, 8281, 8340A,

8350, SCS8, SCS12 to deliver the high quality sound.

• Power for 2 ohm, 4 ohm and 8 ohm outputs, supporting stereo, parallel and bridge outputs.

• Volume control on rear panel.

• High performance, light weight class-D ampliﬁer - weights less than 5kg (net weight).

• HD-15 and phoenix connectors make the system wiring easy.

• Indicators provide accurate diagnostics: Power, Signal, Clip and Fault.

• Compatible with Crown CXM2000 and DSi-8M for total audio system solution. Support the Crown CXM2000 for

monitor, fault detection and crossover functions. Support the Crown DSi-8M for monitor function.

1.2 How to use this manual

This manual provides you with the necessary information to safely setup and correctly operate your ampliﬁer. However, it

does not cover every aspect of installation, setup or operation that might occur under every condition. For additional

information, please consult Crown’s Ampliﬁer Application Guide (available online at www.crownaudio.com), Crown

Technical Support, your system installer, or the retailer where this ampliﬁer was purchased.

We strongly recommend you read all instructions, warnings and cautions contained in this manual. Also, for your

protection, please send in your warranty registration card today. And save your bill of sale — it’s your ofﬁcial proof of

purchase.

1. 欢迎

欢迎您购买本产品，Crown XLC系列专业功放专为影院播放量身定做，有着稳定可靠的性能，

并为您提供完美的扬声器播放音质。Crown XLC系列功放与CXM2000扬声器优化和监听系统搭配

使用时，您可以通过CXM2000监听各通道的音频信号，也可以在CXM2000前面板或影院管理系统

（TMS）界面看到各通道的故障警告。Crown XLC系列功放与JBL影院扬声器和Crown CXM2000搭配

使用，为基础影院提供了一套完美的整体音频解决方案，能最大地满足他们的应用需求。

1.1 特点

• 两种型号可供选择，输出功率可达4欧姆每通道500W(XLC2500)和800W (XLC2800)。

• 完美搭配JBL影院扬声器3722(N)、4722(N)、3730、3252(N)、4641、4642A、8320、4181、

8281、8340A、8350、SCS8、SCS12实现震撼的影院音响效果。

• 2/4/8欧姆输出功率，可支持环绕扬声器或一般影院扬声器的立体声、并行和桥接模式。

• 音量控制位于后面板，可防止误操作。

• D类功放，性能高，重量轻，净重低于5公斤。

• 15针接口和凤凰头，可简化XLC功放与系统之间的输入/输出连接，使布线更简洁。

• 指示灯排列有序，显示电源以及每通道的信号、削波和故障的状况，从而正确判断功放的

现况。

• 与Crown CXM2000或DSi-8M搭配使用，提供整体的音频系统解决方案。并支持Crown

CXM2000实现监听、故障检测和分频功能。支持Crown DSi-8M实现监听功能。

1.2 如何使用本手册

本手册为您提供安全而正确地安装和使用功放的必要信息。但是，它不能涵盖安装、设置或者使

用该设备时可能出现的所有情况。如果您需要了解更多信息，请阅读Crown功放应用指南（您可

以访问www.crownaudio.com在线查看），您也可以向Crown的技术支持部门、您的系统安装人员

或销售地的经销商咨询。

我们强烈建议您仔细阅读本手册中的所有说明、警告和注意事项。另外，为保障您的利益，请立

即递送您的保修卡。并且保留您的购物单据，即您购买本设备的正式凭证。

XLC

2800

FAULT

CLIP

SIGNAL

CH 2

CH 1

XLC

2500

FAULT

CLIP

SIGNAL

CH 2

CH 1

XLC 2500

1kHz Power

1kHz 功率

2Ω Dual (per channel)

2Ω双通道（每声道）

775W

4Ω Dual (per channel)

4Ω双通道（每声道）

500W

8Ω Dual (per channel)

8Ω双通道（每声道）

300W

8Ω Bridge

8Ω桥接

1000W

With 0.5% THD. 基于0.5%THD所得值。

XLC 2800

1kHz Power

1kHz 功率

2Ω Dual (per channel)

2Ω双通道（每声道）

1200W

4Ω Dual (per channel)

4Ω双通道（每声道）

775W / 800W*

8Ω Dual (per channel)

8Ω双通道（每声道）

440W

8Ω Bridge

8Ω桥接

1550W / 1600W*

With 0.5% THD. 基于0.5%THD所得值。

*With 1% THD. *基于1%THD所得值。

XLC Series Power Ampliers

XLC系列功率放大器

page 6

Operation Manual

操作手册

2. Setup

2. 安装

2.1 Unpacking

Please unpack and inspect your XLC ampliﬁer for any damage that may have occurred during transit. If damage is found,

notify the transportation company immediately. Only you can initiate a claim for shipping damage, though Crown will be

happy to help as needed. If the product arrived showing signs of damage, save the shipping carton for the shipper’s

inspection.

We also recommend that you save all packing materials so you will have them if you ever need to transport the unit. Never

ship the unit without the factory carton and packing materials.

Package contains:

• One XLC ampliﬁer;

• One Power Cord (compatible to retailer’s location);

• One operation manual (this manual);

• One product registration form (at the end of this manual);

• One warranty card (at the end of this manual).

For installation, you will need (not supplied):

• Input wiring cables

• Output wiring cables

• Rack for mounting ampliﬁer (or a stable surface for stacking)

NOTE: Before you start to set up your ampliﬁer, make sure you read and observe the Important

Safety Instructions found at the beginning of this manual.

2.1 拆箱

请将包装箱打开并检查运输过程中设备是否受到损坏。如果发现损坏，请立即通知运输公司。

尽管 Crown 非常乐意在需要时提供帮助，但只有您可以对运输损坏提出索赔。如果产品到达时

显示损坏迹象，请保留包装箱，供运送方核查时，作为认定设备受损的证据。

另外，我们建议您保存所有的包装材料，留待将来运输设备时使用。请不要在没有使用原厂包装

箱和包装材料的情况下装运设备。

单套包装包括：

• 一台XLC功率放大器；

• 一根电源线（规格与经销商所在地匹配）；

• 一本操作说明书（本说明书）；

• 一份产品注册表（本说明书最后部分）；

• 一张保修卡（本说明书最后部分）。

安装时，您还需要（未提供）：

• 输入信号电缆；

• 输出信号电缆；

• 用于架设功放的设备支架或稳固台面。

注意：在您安装使用本功放前，请确保已经阅读并遵守本手册前面所列的重要安全信

息。

Figure 2.1 Package

图2.1 包装

XLC系列功率放大器

Operation Manual

page 7

操作手册

XLC Series Power Ampliers

2.2 Installing the ampliﬁer

NOTE: Before you begin, make sure your ampliﬁer is disconnected from the power source, with

the power switch in the “off” position and all level controls turned completely down (counter-

clockwise).

Use a standard 19-inch (48.3 cm) equipment rack. See Figure 2.2 for ampliﬁer dimensions. You may also stack ampliﬁers

without using a cabinet.

NOTE: Ampliﬁers should be supported at both the front and rear of the rack.

2.3 Ensuring Proper Cooling

When using an equipment rack, mount units directly on top of each other. Close any open spaces in rack with blank panels.

Do not block front or rear air vents. The back of the rack should be open.

Figure 2.3 illustrates standard ampliﬁer airﬂow.

2.2 安装功放

注意：开始安装前，确保您已断开功放与电源的连接，将功放电源开关设置到关闭位

置，并将所有音量调节到最低（逆时针旋转）。

使用一个标准的19寸（ 48.3厘米）设备机架。具体功放尺寸请参见图2.2。您还可以直接将功放

安放到平台上，而不用将功放安装到机柜。

注：机架前后均应该支撑功率放大器。

2.3 保证正常散热

在使用设备机架时，直接将设备安装在机架上。使用空白面板将所有开放的空间封闭。不要阻挡

前面和后面的通风口。机架的后面应该保持开放。

图2.3 显示标准的功放气流流通情况。

Figure 2.2 Dimensions

图2.2 尺寸

Figure 2.3 Airﬂow

图2.3 气流流通

3.46 In.

8.8 cm

18.99 In.

48.25 cm

8.12 In.

20.65 cm

10.38 In.

26.36 cm

XLC2500

XLC2800

XLC

2500

FAULT

CLIP

SIGNAL

CH 2

CH 1

2. 安装（接上一页）

2. Setup (continued)

XLC Series Power Ampliers

XLC系列功率放大器

page 8

Operation Manual

操作手册

Figure 2.6 HD15 Pin Deﬁnition

图2.6 15针引脚定义

Figure 2.4 Wiring XLC Ampliﬁers to the CXM2000 in Bi-ampliﬁed Cinema Speakers System

图2.4 双功放通道驱动式扬声器系统中XLC功放与CXM2000的连接

Figure 2.5 Wiring XLC Ampliﬁers to the CXM2000 in Passive Cinema Speakers System

图2.5 被动式扬声器系统中XLC功放与CXM2000的连接

2. 安装（接上一页）

2. Setup (continued)

5 1

Pin CXM2000 Crown XLC series

1 CH1 Output - CH1 Input -

2 Null Null

3 V-MON CH1 Input V-MON CH1

4 CH1 Amp status CH1 Amp status

5 CH1 Load Current status CH1 Load Current status

6 Sig GND Sig GND

7 CH1 Output + CH1 Input +

8 CH2 Output + CH2 Input +

9 Null Null

10 Chassis GND Chassis GND

11 CH2 Output - CH2 Input -

12 Null Null

13 V-MON CH2 V-MON CH2

14 CH2 Amp status CH2 Amp status

15 CH2 Load Current status CH2 Load Current status

2.4 Wiring to the CXM2000 Monitor and Crossover System

It is recommended to use the XLC Series ampliﬁers with the Crown CXM2000 Monitor and Crossover System. Figure 2.4

and ﬁgure 2.5 are the samples of wiring XLC ampliﬁers to the CXM2000 in bi-ampliﬁed cinema speakers system and

passive cinema speakers system through cables. This allows the CXM2000 to send the audio signals to and receive signals

from the XLC ampliﬁers for crossover, fault detection and monitor functions. More details about the wiring, please read the

Operation Manual of the CXM2000 Monitor and Crossover System.

Please see ﬁgure 2.6 for the HD-15 pin deﬁnition.

2.4 连接至CXM2000扬声器优化/监听系统

建议将XLC系列功放搭配Crown CXM2000扬声器优化/监听系统使用。图2.4和图2.5的示例，分

别为在双功放通道驱动式扬声器系统和被动式扬声器系统中，通过线缆连接功放的15针接口至

CXM2000。连接成功后，CXM2000可以输出优化后的音频信号，并接收来自XLC功放的监听信号和

故障检测信号，实现分频、监听和故障检测功能。更多详细的连接信息，请看CXM2000扬声器优

化/监听系统的操作手册。

关于15针接口的引脚定义，请看图2.6。

L-Bi-amp

L&R-Passive

R-Bi-amp

Null-Passive

Sw1C Sw2 Ls/Rs Bsl/Bsr

INPUTS FROM PROCESSOR OUTPUTSRS-232

Firmware update

OUTPUTS TO POWER AMPLIFIER INPUTS

Speaker 1-4

System 5-8

1 2 3 4 5 6 7 8

230

XLC Series Amplifiers

CXM2000

1 2

L Channel

R Channel

C Channel

Bsl&Bsr Channel

Ls&Rs Channel

SW2 Channel

SW1 Channel

L-Bi-amp

L&R-Passive

R-Bi-amp

Null-Passive

Sw1C Sw2 Ls/Rs Bsl/Bsr

INPUTS FROM PROCESSOR OUTPUTSRS-232

Firmware update

OUTPUTS TO POWER AMPLIFIER INPUTS

Speaker 1-4

System 5-8

1 2 3 4 5 6 7 8

230

XLC Series Amplifiers

CXM2000

1 2

L&R Channel

Ls&Rs Channel

C Channel

SW1 Channel

SW2 Channel

Bsl&Bsr Channel

XLC系列功率放大器

Operation Manual

page 9

操作手册

XLC Series Power Ampliers

2.5 Alternative: Choosing Phoenix Connectors as Input Connectors

Besides connecting the XLC ampliﬁers to the CXM2000 through HD-15 connector, you can also connect to other input

devices through the phoenix connectors on its rear panel. Crown recommends using pre-built or professionally wired

balanced line (two-conductor plus shield), 22-24 gauge cables and connectors (see Figure 2.7). Unbalanced lines may be

used, but may result in hum or RF noise over long cable runs.

NOTE: Custom wiring should only be performed by qualiﬁed personnel.

2.6 Choosing Output Wiring and Connectors

Crown recommends using pre-built or professionally wired, high-quality, two-conductor, heavy gauge speaker wire and

spade lug connectors or bare wire for your output connectors (Figure 2.8). To prevent the possibility of short-circuits, wrap

or otherwise insulate exposed loudspeaker cable connectors.

Non-Touch cover provides protection of electric shock from the output terminals. Remove it to connect the cables to the

output terminals and reinstall it when ﬁnish. To reinstall it, insert tab A into the slot right beside the output terminals (see

ﬁgure 2.9). Put the screw through tab B and screw it into the hole left beside the output terminals (see ﬁgure 2.9).

Below are the suggested guidelines to select the appropriate size of wire based on the distance from ampliﬁer to speaker.

CAUTION: Never use shielded cable for output wiring.

NOTE: Custom wiring should only be performed by qualified personnel. Class 2 output wiring is required.

2.5 可选：选择凤凰头作为输入接口

除用HD-15接口连接XLC功放至CXM2000外，还可以选择后面板的凤凰头接口连接其他输入设

备。Crown建议您采用已有的或专业的平衡线（双导线带屏蔽），22-24线规的电缆和接口连接

凤凰插头（见图2.7）。您也可以使用非平衡线，但是，如果使用的电缆较长，会产生噪音或射

频干扰。

注意：必须由专业人员进行接线操作。

2.6 选择输出连接线和接口

在连接输出至扬声器时，Crown建议您采用已有或专业的，高质量的，双绞线的，大规格扬声器

线材及铲型接线片端口，或裸线（见图2.8）。为了防止短路，您需要包住或使用其他方法绝缘

外露的扬声器电缆接头。

防触摸保护壳用于对输出接口提供防电击保护。接线前需卸下保护壳，再连接线缆到输出接口；

在接线完成后，需装回保护壳。安装防触摸保护壳时，将页片A插入输出接口右侧的插槽内（见

图2.9），将螺丝穿过页片B，拧紧螺丝将其固定在输出接口右侧的小孔内（见图2.9）。

建议使用下表的指南，根据扩音器与喇叭的距离选择合适的音箱。

警告：不要使用屏蔽电缆作为输出连接线！

注：定制接线只能由合格的人员执行。要求使用第 2 类输出接线。

Tab A

Tab B

Non-touch cover

Tab ATab B

Non-touch cover

Figure 2.8 Output Wire and Connectors

图2.8 输出连接线和接口

Figure 2.9 Non-Touch Cover and Its Position

图2.9 防触摸保护壳及其安装位置

Figure 2.7 Input Wire and Connectors

图2.7 输入连接线和接口

2. 安装（接上一页）

2. Setup (continued)

距离尺寸

25英尺以下 16 AWG

26-40英尺 14 AWG

41-60英尺 12 AWG

距离尺寸

61-100英尺 10 AWG

101-150英尺 8 AWG

151-250英尺 6 AWG

Distance Wire Size

up to 25 ft. 16 AWG

26-40 ft. 14 AWG

41-60 ft. 12 AWG

Distance Wire Size

61-100 ft. 10 AWG

101-150 ft. 8 AWG

151-250 ft. 6 AWG

XLC Series Power Ampliers

XLC系列功率放大器

page 10

Operation Manual

操作手册

2.7 Wiring Your System

2.7.1 Stereo Mode

Typical input and output stereo wiring is shown in ﬁgure 2.10. If you need to know which frequence (high, middle or low)

that the Channel 1 or Channel 2 corresponds to, please refer to the appendix in the operation manual of CXM2000.

1. Set the Mode Switch to Stereo (1-OFF, 2-OFF).

2. Connect Channel 1 loudspeaker’s positive (+) lead to Channel 1 positive (red) terminal of amp; repeat for negative

(-). Repeat Channel 2 wiring as for Channel 1.

2.7.2 Parallel Mode

Typical input and output bridge wiring is shown in ﬁgure 2.11.

1. Set the Mode Switch to Parallel (1-ON, 2-OFF).

2. Connect Channel 1 loudspeaker’s positive (+) lead to Channel 1 positive (red) terminal of amp; repeat for negative

(-). Repeat Channel 2 wiring as for Channel 1.

2.7 连接系统

2.7.1 立体声模式

图2.10为一个常用的立体声输入和输出接线示例。有关如何区分通道1和通道2对应的高中低频，

请参看CXM2000操作手册后面的附录。

1. 将后面板的模式开关设定到立体声位置（1-OFF, 2-OFF)；

2. 将通道1扬声器的正极（+）导线连接到功放通道1的正极（红色）端子上，用同样的方法，

连接好通道1的负极。使用与通道1同样的方法，连接好通道2。

2.7.2 并行模式

图2.11为一个常用的并行输入和输出接线示例。

1. 将后面板的模式开关设定到并行位置（1-ON, 2-OFF)；

2. 将通道1扬声器的正极（+）导线连接到功放桥接的正极（红色）端子上，用同样的方法，

连接好通道1的负极。使用与通道1同样的方法，连接好通道2。

JBL 3252

1 2

Ch. 1 amplifier output to LF driver

Stereo: 1-OFF, 2-OFF

Ch. 1 SourceCh. 2 Source

Ch. 2 amplifier output to HF

and MF driver

Figure 2.11 Parallel Mode

图2.11 并行模式

Figure 2.10 Stereo Mode

图2.10 立体声模式

2. 安装（接上一页）

2. Setup (continued)

1 2

Parallel: 1-ON, 2-OFF

Ch. 1 Source

JBL 4181JBL 4181

- -

+ +

XLC系列功率放大器

Operation Manual

page 11

操作手册

XLC Series Power Ampliers

2.7.3 Bridge Mode

Typical input and output bridge wiring is shown in ﬁgure 2.12. The input of Channel 1 will be used.

1. Set the Mode Switch to Bridge (1-OFF, 2-ON).

2. Connect Channel 1 loudspeaker’s positive (+) lead to Bridge positive (red) terminal of amp; repeat for Channel 1’s

negative (-).

2.8 Connecting to AC Mains

Connect your ampliﬁer to the AC mains power source (power outlet) with the supplied AC power cord. First, connect the

IEC end of the cord to the IEC connector on the ampliﬁer; then, plug the other end of the cord to the AC mains.

WARNING: The third prong of this connector (ground) is an important safety feature. Do not attempt to disable

this ground connection by using other methods.

Ampliﬁers don’t create energy. The AC mains voltage and current must be sufﬁcient to deliver the power you expect. You

must operate your ampliﬁer from an AC mains power source with not more than a 10% variation above or below the

ampliﬁer’s speciﬁed line voltage and within the speciﬁed frequency requirements (The speciﬁc voltage and frequency

requirement is compatible to retailer’s location and dictated on the ampliﬁer’s back panel label). If you are unsure of the

output voltage of your AC mains, please consult your electrician.

2.9 Protecting Your Speakers

It’s wise to avoid clipping the ampliﬁer signal. Not only does clipping sound bad, it can damage high-frequency drivers of

speakers.

5. Setup (continued)

5. 安装（接上一页）

2.7.3 桥接模式

图2.12为一个常用的桥接输入和输出接线示例。使用的为通道1的输入。

1. 将后面板的模式开关设定到桥接位置（1-OFF, 2-ON)；

2. 将通道1扬声器的正极（+）导线连接到功放桥接的正极（红色）端子上，用同样的方法，

连接好通道1的负极。

2.8 连接到电源

使用功放原装的电源线，将您的功放连接到电源上（电源插座）。首先，将电线的IEC端连接到

功放的IEC接口上，然后将电线的另一端插入电源插座。

警告：此接口的第三个插脚（接地端）在安全性上起着至关重要的作用。切忌试图使用

其他方法禁用此接地连接。

功放不产生能量。请确保交流电的电压和电流充足，从而供给功放所需的电能。功放所需要的交

流电源的电压不能高于或低于功放指定工作电压的10%，并符合指定的功率要求（指定的电源电

源和功率要求与经销商所在地匹配，具体数值在功放后面板的标签有标示）。如果您不能确定交

流电源的输出电压值，请咨询您当地的电工。

2.9 保护您的扬声器

在常规使用中，需避免功放接收到削波。因为削波不仅会导致声音质量变差，而且还会损坏扬声

器高频驱动单元。

Figure 2.12 Bridge Mode

图2.12 桥接模式

JBL 4641

1 2

Bridge 桥接: 1-OFF, 2-ON

Ch. 1 Source

XLC Series Power Ampliers

XLC系列功率放大器

page 12

Operation Manual

操作手册

3. Operation

3.1 Precautions

Please take the following precautions for optimum performance and safety:

1. Before use, your ampliﬁer ﬁrst must be conﬁgured for proper operation, including input and out put wiring hookup.

Improper wiring can result in serious operating difﬁculties and malfunction. For information on wiring and

conﬁguration, please consult the Setup section of this manual or, for advanced setup techniques, consult Crown’s

Ampliﬁer Application Guide available online at www.crownaudio.com.

2. Use care when making connections, selecting signal sources and controlling the output level. The load you save

may be your own!

3. Do not short the ground lead of an output cable to the input signal ground. This may form a ground loop and cause

oscillations.

4. Tampering with the circuitry, or making unauthorized circuit changes may be hazardous and invalidates all agency

listings.

5. Do not operate the ampliﬁer with the yellow Clip LEDs is on.

6. Do not operate the ampliﬁer with less than the rated load impedance. Due to the ampliﬁer’s output protection, such a

conﬁguration may result in pre mature clipping and speaker damage.

WARNING: Never connect the output to a power supply, battery or power main. Electrical shock

may result.

Remember: Crown is not liable for damage that results from overdriving other system

components.

3.2 Startup Procedure

Use the following procedure when ﬁrst turning on your ampliﬁer:

1. Turn down the level of your audio source.

2. Turn down the level controls of the ampliﬁer.

3. Turn on the “Power” switch. The Power indicator should glow.

4. Turn up the volume of your audio source to an optimum level.

5. Turn up the volume controls on the ampliﬁer until the desired loudness or power level is achieved. In Bridge mode,

only the Channel 1 volume control is functional.

6. Turn down the volume of your audio source to its normal range.

If you ever need to make any wiring or installation changes, don’t forget to disconnect the power cord. For help with

determining your system’s optimum gain structure (signal levels) please refer to the Crown Ampliﬁer Application Guide,

available online at www.crownaudio.com

3. 操作

3.1 预防措施

为了获取最佳性能和安全，您应该采取以下的预防措施：

1. 使用前，必须针对功放的正常运行进行配置，其中包括输入和输出配线连接。接线不当将

会导致操作失效或设备损坏。有关接线和配置的信息，请参考本手册的安装部分，另外，

要了解高级安装技术，您可以参阅Crown 功放应用指南，您可以通过网址www.crownaudio.

com 在线阅读此应用指南。

2. 在进行连接、选择信号源和控制输出水平时，需要特别小心。您所节省的能源仍是您自己

的。

3. 不要将输出电缆的接地导线与输入信号接地短接。否则会形成接地环路，导致振动。

4. 篡改电路或在未经允许的情况下改动电路是很危险的，并导致本产品无法获取保修。

5. 当黄色的削波LED指示灯亮起时，不要运行功放。

6. 低于额定负载阻抗时，不要运行功放。由于功放输出的保护，这样操作将导致过早达到削

波，可能损坏扬声器。

警告：不要将输出端连接到电源、电池或供电网，否则会导致电击发生。

切记：由于超负荷驱动其它系统组件而导致的设备损坏，Crown 概不负责。

3.2 启动步骤

初次启动功放时，请按如下操作步骤进行：

1. 调低音源音量。

2. 调低功放音量。

3. 按下“Power”开关按键。电源指示灯点亮。

4. 将音源音量调至最佳水平。

5. 调节功放上的音量调节器，直到达到所需响度或功率级别。在桥接模式下，您只能使用通

道1音量调节器。

6. 将音源音量调低到正常范围。

如果您需要更改接线或安装，确保先断开设备的电源线。为使您的系统获取最佳增益水平（信号

电平），您可以阅读Crown功放应用指南。如需获取此应用指南，您可以通过访问Crown网站www.

crownaudio.com下载。

XLC系列功率放大器

Operation Manual

page 13

操作手册

XLC Series Power Ampliers

A. Cooling Vents

Allows ﬂow-through ventilation from front to back.

B. Indicators

Green: Signal Presence Indicator. Two green LEDs, one

for each channel, illuminate when the channel input signal

exceeds -40 dBu.

Yellow: Clip Indicator. Two yellow LEDs, one for each

channel, illuminate when the channel’s output is being

overdriven.

Red: Fault Indicator. Two red LEDs, one for each channel,

illuminate when channel has fault.

C. Power Indicator

Blue LED illuminates when ampliﬁer is on.

D. Power Switch

On/Off switch applies AC power to the ampliﬁer.

XLC

2500

FAULT

CLIP

SIGNAL

CH 2

CH 1

A B C D

Figure 3.1 Front Panel

图3.1 前面板

A. 通风口

气流从前往后流动实现通风。

B. 状态指示灯

绿色：信号指示灯。每通道一路绿色LED灯，

输入信号超过-40 dBu时点亮。

黄色：削波指示灯。每通道一路黄色LED灯，

输出信号明显失真时点亮。

红色：故障指示灯。每通道一路红色LED灯，

通道有故障时点亮。

C. 电源指示灯

蓝色LED灯，功放开启时点亮。

D. 电源开关

开关按键用于接通或断开功放与交流电的连

接。

3. 操作（接上一页）

3. Operation (continued)

3.3 Front Panel

3.3 前面板

XLC Series Power Ampliers

XLC系列功率放大器

page 14

Operation Manual

操作手册

E. Reset Button

Provide overload protection.

F. AC Power Connector

The requirement of power supply can be found on the right

side of AC Power Connector on the rear panel.

G. Output Connectors

4-position barrier strip with connectors for stereo, parallel

or bridge mode.

H. Fan

Front-to-rear forced airﬂow.

I. Mode Switch

Switch among stereo, parallel and bridge output operation.

J. Volume Attenuator Pot

Control the volume output level for each channel.

K. HD-15 Connector

For cinema I/O compatibility with CXM2000 Monitor and

Crossover System and DSi-8M System Monitor (It is

recommended to select parallel or bridge mode when

operating with DSi-8M).

L. Input Connector

6-pin Phoenix-type connectors accept 2 balanced

line-level input signal.

1 2

F G I J K L

Figure 3.2 Rear Panel

图3.2 后面板

E. 复位按键

提供整机过流保护。

F. 电源输入接口

电源输入要求请以后面板电源输入接口右侧所

示的数值为准。

G. 输出接口

4位输出端子，用于立体声、并行或桥接模式

输出。

H. 风扇

产生从前面到后面的强制冷却气流。

I. 模式开关

切换立体声、并行或桥接模式。

J. 音量控制钮

控制每个通道音量输出的大小。

K. HD-15连接接口

与CXM2000影院扬声器优化/监听系统或DSi-8M

系统监听器兼容的电影输入和监听输出接口（

建议与DSi-8M配合使用时，选择并行或桥接

模式）。

L. 输入接口

6针凤凰头接口，接入2路平衡输入信号。

3. 操作（接上一页）

3. Operation (continued)

3.4 Rear Panel

3.4 后面板

NOTE: The product sold in China will use Chinese label.

注：中国地区经销商所售产品为中文标示。

XLC系列功率放大器

Operation Manual

page 15

操作手册

XLC Series Power Ampliers

4. Advanced Features and Options

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 System Protection

Your Crown ampliﬁer provides extensive protection and diagnostic capabilities, including output current limiting, AC

under voltage protection, thermal protection and circuit breaker for the unit’s transformers and output devices.

4.1.1 Output Current Limiting

Output Current Limiting circuitry protects the ampliﬁer output stage from damage caused by short-circuit loads.

4.1.2 Fault

The ampliﬁer will illuminate to alert the user when it is fault. Check all wiring to and from the ampliﬁer and verify if the

ampliﬁer is overheat. Once the fault condition persists, see “7. Service” on page 22 for Servicing information.

4.1.3 AC Under Voltage Protection

If the AC line voltage drops below 15% of the nominal operating voltage of the ampliﬁer, the ampliﬁer’s power supply turns

off and the blue Power LED turns off. The ampliﬁer will turn back on when the AC line voltage returns to safe operating

levels (±10%).

4.1.4 Thermal

The Thermal Protection circuit will activate if the internal heatsink temperature exceeds proper operating temperatures

(194° F, 90° C). When the heatsink temperature has fallen to a safe level, this protection circuit will automatically be reset

and compress signals. The Fault indicator illuminate at the same time.

The cause of your ampliﬁer’s thermal protection state should be determined and corrected as soon as possible. Without

correction, the Thermal Protection circuit will typically reactivate.

4.1.5 Circuit Breaker (Reset Button)

A circuit breaker located near the IEC power inlet protects the ampliﬁer from excessive AC current draw.

4.1.6 Output Connector Security Cover

The installed output connector security cover can prevent unexpected access to the output connector which might cause

serious personnel injury. See “2.6 Choosing Output Wiring and Connectors” on page 9.

4. 高级功能和选项

要了解Crown功放的详细功能，您可以阅读Crown功放应用指南。如需获取此应用指南，您可以通

过访问Crown网址www.crownaudio.com下载。

4.1 保护系统

您的Crown功放为变压器和输出设备提供更多的保护和诊断功能，包括输出电流限制、故障、交

流电过低保护、过热保护和断路等。

4.1.1 输出电流限制

输出电流限制电路是在功放输出的过程中提供保护，为防止因短路而受到损坏。

4.1.2 故障

如果功放出现故障，故障显示灯会点亮提醒用户。检查所有连接至/自功放的线路，以及功放是

否过热。如果故障未能排除，请参见第23页的“7. 服务”获取维修信息。

4.1.3 交流电压过低保护

如果交流线电压比功放的额定工作电压低于15%，则功放的电源将关闭并且蓝色“Power（电

源）”LED 指示灯将熄灭。当交流线电压恢复到安全的运行范围（在 ±10% 范围内）时，功放

将重新工作。

4.1.4 过热

当功放过热或输出出现故障，可能是过热检查所有连接至/自功放的线路，以确保故障并非由外

部条件导致。如果内部积温超过正常温度(194°F, 90°C)时，热防护电路会被激活并压缩信

号，同时点亮故障指示灯。

功放热防护状态的动因应该尽快确定并得到纠正。如果不纠正，热防护电路会再次运行。

4.1.5 断路器（复位键）

电源接口附近的断路器可以避免功放的交流电流消耗过大。

4.1.6 输出接口防触摸保护壳

随机所带的输出接口防触摸保护壳可以防止意外接触输出接线而导致严重的人员伤害。请参看第

9页的“2.6 选择输出连接线和接口”。

FAULT

CLIP

SIGNAL

CH 2

CH 1

Figure 4.1 Indicators

图4.1 指示灯

XLC Series Power Ampliers

XLC系列功率放大器

page 16

Operation Manual

操作手册

5. Troubleshooting

5. 故障诊断

Light on Light off

点亮熄灭

CONDITION: No power to the ampliﬁer.

POSSIBLE REASON:

• The ampliﬁer’s Power switch is off.

• The ampliﬁer is not plugged into the power receptacle.

• The ampliﬁer’s high-voltage power supply circuit breaker has

tripped.

• Verify that the AC mains voltage is correct, then press the Circuit

Breaker button on the back panel.

状态：功率放大器没有电源供给。

可能的原因：

• 放大器电源开关关闭。

• 没有将放大器插入电源插座。

• 放大器的高压电源断路器跳闸。

• 检验交流电源电压是否正确，然后按下后面板上的

断路器按钮。

POWER

CLIP

SIGNAL

FAULT

POWER

CLIP

SIGNAL

FAULT

CONDITION: No sound but remains power active.

POSSIBLE REASON:

• No input signal.

• Input signal level is very low.

状态：电源接通但无声音。

可能的原因：

• 无输入信号。

• 输入信号电平太低。

POWER

CLIP

SIGNAL

FAULT

CONDITION: No sound but remains power active.

POSSIBLE REASON:

• No input signal or the input signal level is very low, and the

ampliﬁer is in “fault” mode. A Fault status can be triggered when

one of the ampliﬁer’s protection circuits is activated. First

disconnect your speakers from the affected channels(s) one by

one to determine if one of the loads is shorted. If the indicators

return to normal status, then try a different speaker or cable to

determine where the short is occurring. If no short can be found,

turn off the amp and allow the amp to cool. If indicators do not

return to normal after restarting your amp, check the breaker or

return amp to Crown or an authorized Crown Service Center for

servicing..

状态：电源接通但无声音。

可能的原因：

• 无输入信号或输入信号电平太低的情况下，放大器

处于“故障”模式。当其中一个放大器的保护电路

被激活，将触发一个故障状态。首先将扬声器从受

影响的通道上逐一断开，确定负载是否被短路。如

果指示器返回到正常状态，那么试用不同扬声器或

者电缆，确定发生短路的地方。如果没有发现短

路，关闭放大器，让放大器冷却。如果指示器在重

启放大器后没有返回到正常状态，检查断路器或者

将放大器退回给Crown 或者经授权的Crown 维修中

心进行维修。

POWER

CLIP

SIGNAL

FAULT

CONDITION: Normal operation.

状态：正常运行。

XLC系列功率放大器

Operation Manual

page 17

操作手册

XLC Series Power Ampliers

5. Troubleshooting (continued)

5. 故障检测（接上一页）

CONDITION: No sound but remains power active.

POSSIBLE REASON:

• The ampliﬁer has just turned on and is still in the 4-second

turn-on delay.

• The ampliﬁer is in “fault” mode. A Fault status can be triggered

when one of the ampliﬁer’s protection circuits is activated. First

disconnect your speakers from the affected channels(s) one by

one to determine if one of the loads is shorted. If the indicators

return to normal status, then try a different speaker or cable to

determine where the short is occurring. If no short can be found,

turn off the amp and allow the amp to cool. If indicators do not

return to normal after restarting your amp, check the breaker or

return amp to Crown or an authorized Crown Service Center for

servicing..

状态：电源接通但无声音。

可能的原因：

• 放大器刚刚开启，仍在4 秒开启延迟时间内。

• 放大器处于“故障”模式。当其中一个放大器的保

护电路被激活，将触发一个故障状态。首先将扬声

器从受影响的通道上逐一断开，确定负载是否被短

路。如果指示器返回到正常状态，那么试用不同扬

声器或者电缆，确定发生短路的地方。如果没有发

现短路，关闭放大器，让放大器冷却。如果指示器

在重启放大器后没有返回到正常状态，检查断路器

或者将放大器退回给Crown 或者经授权的Crown 维

修中心进行维修。

POWER

CLIP

SIGNAL

FAULT

CONDITION: Volume down or no sound.