Crown Audio XL User Manual

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XLS Series

Operation Manual

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 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.

Trademark Notice: Crown respective owners.

and Amcron® are registered trademarks of Crown Audio, Inc. Other trademarks are the property of their

XLS 202

XLS 402

XLS 602

Some models may be exported under the name Amcron.®

133465-3

11/01

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Important Safety Instructions

XLS Series Power Ampliﬁ ers

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 ﬁ t 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 speciﬁ ed by the manufacturer.

12) Use only with a cart, stand, bracket, or table speciﬁ ed 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 qualiﬁ ed 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.

15) To reduce the risk of ﬁ re or electric shock, do not expose this apparatus to rain or moisture.

TO PREVENT ELECTRIC SHOCK DO NOT REMOVE TOP OR BOTTOM COVERS. NO USER SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.

IMPORTANT

The XLS Series ampliﬁ ers require Class 2 output wiring.

MAGNETIC FIELD

CAUTION! Do not locate sensitive high-gain equipment such as preampliﬁ ers or tape decks directly above or below the unit. Because this ampliﬁ er has a high power density, it has a strong magnetic ﬁ eld which can induce hum into unshielded devices that are located nearby. The ﬁ eld is strongest just above and below the unit.

If an equipment rack is used, we recommend locating the ampliﬁ er(s) in the bottom of the rack and the preampliﬁ er or other sensitive equipment at the top.

WATCH FOR THESE SYMBOLS:

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

The exclamation point triangle is used to alert the user to important operating or maintenance instructions.

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À PRÉVENIR LE CHOC ÉLECTRIQUE N’ENLEVEZ PAS LES COUVERCLES. IL N’Y A PAS DES PARTIES SERVICEABLE À L’INTÉRIEUR. TOUS REPARATIONS DOIT ETRE FAIRE PAR PERSONNEL QUALIFIÉ SEULMENT.

Operation Manual

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XLS Series Power Ampliﬁ ers

Table of Contents

Important Safety Instructions ...................................................... 2

1 Welcome ...................................................................................... 4

1.1 Features......................................................................... 4

1.2 Unpacking Your Ampliﬁ er.......................................... 4

2 How to Use This Manual........................................................... 4

3 Setup............................................................................................. 5

3.1 Unpack Your Ampliﬁ er................................................ 5

3.2 Voltage Selection ........................................................5

3.3 Mount Your Ampliﬁ er.................................................. 5

3.4 Ensure Proper Cooling................................................ 5

3.5 Choose Input Wire and Connectors ......................... 6

3.6 Choose Output Wire and Connectors....................... 6

3.7 Wire Your System........................................................ 7

3.7.1 Stereo Mode...................................................... 7

3.7.2 Bridge-Mono Mode .......................................... 7

3.8 Connect to AC Mains................................................... 8

3.9 Startup Procedure........................................................ 8

4 Operation ..................................................................................... 8

4.1 Precautions....................................................................8

4.2 Front Panel Controls and Indicators........................ 9

4.3 Back Panel Controls and Connectors .................... 10

5 Advanced Features and Options............................................ 11

5.1 Protection Systems ...................................................11

5.1.1 Anti-Clip Limiters........................................... 11

5.1.2 High-Pass Filters............................................ 11

5.1.3 Output Current Limiting ................................ 11

5.1.4 DC Protection .................................................. 11

5.1.5 Fuse .................................................................. 11

5.1.6 Thermal Protection ........................................ 11

6 Troubleshooting........................................................................ 12

7 Speciﬁ cations............................................................................ 13

8 Service........................................................................................ 15

8.1 Worldwide Service.................................................... 15

8.2 US and Canada Service............................................ 15

8.2.1 Factory Service .............................................. 15

9 Warranty..................................................................................... 16

Factory Service Information Form ............................................ 19

Operation Manual

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XLS Series Power Ampliﬁ ers

1 Welcome

The XLS Series of power ampliﬁ ers from Crown represents a new era in affordable, quality power ampliﬁ cation. The line consists of three models in a uniform, rugged chassis, incorporating the best of tried-andtrue design principles and innovative features.

Modern power ampliﬁ ers are sophisticated pieces of engineering capable of producing extremely high power levels. They must be treated with respect and correctly installed if they are to provide the many years of reliable service for which they were designed.

In addition, XLS Series ampliﬁ ers include a number of features which require some explanation before they can be used to their maximum advantage.

Please take the time to study this manual so that you can obtain the best possible service from your ampliﬁ er.

1.1 Features

• Simple, reliable design incorporates many popular features.

• Selectable high-pass ﬁ lter on each channel enables ampliﬁ er to work more efﬁ ciently when full band-width is not required (eg: two- or three-way systems).

• Pair of linear optocoupler clip limiters protects loudspeakers from being overdriven.

• Housed in a rugged, all-steel 3U chassis.

• Efﬁ cient forced-air fan prevents excessive thermal buildup.

• Electronically balanced XLR inputs and touch-proof binding post outputs.

• Features precision detented level controls, power switch, and four LEDs, which indicate clip for each channel, power and fault conditions.

1.2 Unpacking Your Ampliﬁ er

Please unpack and inspect your ampliﬁ er 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. Crown will be happy to help as needed. Save the shipping carton as evidence of damage 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 pack.

2 How to Use This Manual

This manual provides you with the necessary information to safely and correctly setup and operate your ampliﬁ er. It does not cover every aspect of installation, setup or operation that might occur under every condition. For additional information, please consult Crown’s Ampliﬁ er Application Guide (available online at www.crownaudio.com), Crown Tech Support, your system installer or retailer.

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 ofﬁ cial proof of purchase.

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Operation Manual

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XLS Series Power Ampliﬁ ers

3 Setup

Figure 3.1

Voltage Selection

3.1 Unpack Your Ampliﬁ er

YOU WILL NEED (not supplied):

• Two input wiring cables

• Two output wiring cables

• Rack for mounting ampliﬁ er (or a stable surface for stacking)

WARNING: Before you start to set up your ampliﬁ er, make sure you read and observe the Important Safety Instructions found at the beginning of this manual.

3.2 Voltage Selection

CAUTION: Before use, your ampliﬁ er must be set to the correct operating voltage for your local supply. Typically,

units are shipped from the factory with voltage already set with the correct setting, but this setting should be veriﬁ ed before ﬁ rst using the ampliﬁ er.

The selected voltage is displayed on the top, left side of the fuse drawer (see Figure 3.1). To change the voltage setting; disconnect the power source, then gently pry out the fuse casing from the fuse drawer. Replace with the correct voltage positioned to display on the top left side.

Be sure to operate your ampliﬁ er from a power supply within ±10% of the rated voltage (i.e., 108-132V for 120V supply).

3.3 Mount Your Ampliﬁ er

CAUTION: Before you begin, make sure your ampliﬁ er is disconnected from the power source, with power switch in the “off” position and all level controls turned completely down (counterclockwise).

Use a standard 19-inch (48.3 cm) equipment rack. See Figure 3.2 for ampliﬁ er dimensions.

You may also stack amps without using a cabinet.

NOTE: When transporting, ampliﬁ ers should be supported at both front and back.

Figure 3.2 Dimensions

3.4 Ensure 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 side or front air vents.

Figure 3.3 illustrates standard amplifier airflow.

2 in.

Figure 3.3 Airﬂ ow

Operation Manual

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Page 6

3 Setup

XLS Series Power Ampliﬁ ers

3.5 Choose Input Wire and Connectors

Crown recommends using pre-built or professionally wired, balanced line (two-conductor plus shield), 22-24 gauge cables and connectors. You should use 3-pin male XLR cable ends at the ampliﬁ er inputs. Unbalanced line may also be used but may result in noise over long cable runs.

Note: Male XLR signal links are also provided on the ampliﬁ er to allow daisy-chaining of the audio signal.

Refer to Figure 3.4 for correct XLR connector pin assignments.

NOTE: Custom wiring should only be performed by qualiﬁ ed personnel.

3.6 Choose Output Wire and Connectors

Crown recommends using pre-built or professionally wired, high-quality, two- or fourconductor, heavy gauge speaker wire and connectors. You may use banana plugs, spade lugs or bare wire for your output connectors (see Figure 3.5). To prevent the possibility of short-circuits, wrap or otherwise insulate exposed loudspeaker cable connectors.

Using the guidelines below, select the appropriate size of wire based on the distance from ampliﬁ er to speaker.

Distance Wire Size

up to 25 ft. 16 gauge 26-40 ft. 14 gauge 41-60 ft. 12 gauge 61-100 ft. 10 gauge 101-150 ft. 8 gauge 151-250 ft. 6 gauge

CAUTION: Never use shielded cable for output wiring.

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Figure 3.4. Input Connector Wiring

Figure 3.5. Output Connector Wiring

Operation Manual

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XLS Series Power Ampliﬁ ers

3 Setup

3.7 Wire Your System

3.7.1 Stereo Mode

Typical input and output wiring is shown in Figure 3.6.

INPUTS: Connect input wiring for both channels.

OUTPUTS: Maintain proper polarity (+/-) on output connectors.

Connect Channel 1 positive (+) speaker load to Channel 1 positive (red) terminal of amp; repeat for negative (-). Repeat Channel 2 wiring as for Channel 1.

3.7.2 Bridge-Mono Mode

Typical input and output wiring is shown in Figure 3.7.

INPUTS: Use a custom “Y” adapter cable, wired to split the signal and invert the polarity for the Channel 2 ampliﬁ er input as shown in Figure 3.8. We recommend you label the ends of the Y adapter to help make sure to connect the correct end to each ampliﬁ er input.

Connect the Y adapter between the signal source and each ampliﬁ er input.

NOTE: Crown provides a reference of wiring pin assignments for commonly used connector types in the Crown Ampliﬁ er Application Guide (Section 1.21.) available at www.crownaudio.

OUTPUTS: Connect the speaker across the red binding post of each channel. Do not use the black binding posts when the amp is being operated in Bridge-Mono mode.

NOTE: The Channel 1 and 2 level controls MUST be set to identical settings when operating the XLS ampliﬁ er in Bridge-Mono mode.

120V

110V

Figure 3.6. System Wiring, Stereo Mode

120V

110V

Figure 3.7. System Wiring, Bridge-Mono Mode

Operation Manual

Figure 3.8. Custom Input Cable for Bridge-Mono Mode

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XLS Series Power Ampliﬁ ers

3 Setup

3.8 Connect to AC Mains

Connect your ampliﬁ er to the AC mains power source (power outlet) with the supplied AC power cordset. First, connect the IEC end of the cordset to the IEC connector on the ampliﬁ er; then, plug the other end of the cordset to the AC mains.

NOTE: The third prong of this connector (ground) is an important safety feature. Do not attempt to disable this ground connection by using an adapter or other methods.

Ampliﬁ ers don’t create energy. The AC mains voltage and current must be sufﬁ cient to deliver the power you expect. You must operate your ampliﬁ er from an AC mains power source with not more than 10% variation above or below the ampliﬁ er’s speciﬁ ed line voltage and within the specﬁ ed frequency requirements (indicated on the ampliﬁ er’s back panel label). If you are unsure of the output voltage of your AC mains, please consult your electrician.

3.9 Startup Procedure

Use the following procedure when ﬁ rst turning on your ampliﬁ er:

1. Turn down the level of your audio source.

2. Turn down the level controls of the ampliﬁ er.

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

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

5. Turn up the Level controls on the ampliﬁ er until the desired loudness or power level is achieved.

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

If you ever need to make any wiring or installation changes, don’t forget to turn off the

ampliﬁ er and disconnect the power cord.

For help with determining your system’s optimum gain structure (signal levels) please refer to the Crown Ampliﬁ er Application Guide, available online at www.crownaudio.com.

4 Operation

4.1 Precautions

Your XLS Series ampliﬁ er is protected from internal and external faults, but you should still take the following precautions for optimum performance and safety:

1. Before use, your ampliﬁ er ﬁ rst must be conﬁ gured for proper operation, including input and output wiring hookup. Improper wiring can result in serious operating difﬁ culties. For information on wiring and conﬁ guration, please consult the Setup section of this manual or, for advanced setup techniques, consult Crown’s Ampliﬁ er 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. Never connect the output to a power supply, battery or power main. Electrical shock may result.

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

6. Never operate the ampliﬁ er with the red Clip LEDs constantly ﬂ ashing.

7. Do Not overdrive the mixer, which will cause a clipped signal to be sent to the ampliﬁ er. Such signals will be reproduced with extreme accuracy, and loudspeaker damage may result.

8. Never operate the ampliﬁ er with less than the rated load impedance. Due to the ampliﬁ er’s output protection, such a conﬁ guration may result in premature clipping and speaker damage.

9. XLS Series ampliﬁ ers feature a built-in Anti-Clip Limiter which, when selected, will provide a high degree of protection against ampliﬁ er clipping. Crown recommends activating the limiter whenever sensible operation of the system cannot be ensured.

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

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Operation Manual

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XLS Series Power Ampliﬁ ers

4 Operation

Figure 4.1 Front Panel Controls and Indicators

4.2 Front Panel Controls and Indicators

A. Cooling Vents

Front-to-rear forced airﬂ ow.

B. Level Controls

Two black rotary level controls, one for

each channel.

C. Clip Indicators

Two red LEDs, one for each channel, illu-

minate when the channel’s output signal is being overdriven.

D. Power Indicator

Green LED indicates ampliﬁ er has been

turned on and AC power is available.

E. Fault Indicator

Yellow LED illuminates when ampliﬁ er is

in protect mode. Also illuminates brieﬂ y during normal power-up when ampliﬁ er is ﬁ rst switched on.

F. Power Switch

Ampliﬁ er is on when the switch is in the

UP position.

Operation Manual

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Page 10

4 Operation

XLS Series Power Ampliﬁ ers

Figure 4.2 Back Panel Controls and Connectors

4.3 Back Panel Controls and Connectors

G. Power Connector

H. Fuse

Provides overload protection.

I. Voltage Selector

Two-position switch is factory-set to coun-

try-speciﬁ c voltage. WARNING: Do not

operate your ampliﬁ er with an incorrect voltage selected or ampliﬁ er damage may result.

J. Male XLR Signal Links

One per channel; male XLR connectors

are provided for daisy-chaining to other ampliﬁ ers.

K. Balanced XLR Inputs

One per channel; three-pin female XLR

input connectors are provided.

L. Filter Switches One per channel; three-position switch sets

the internal high-pass ﬁ lter frequency. Frequency setting is 30 Hz when switch is in left position; 15 Hz when switch is centered; and bypassed when switch is in right position.

M. Limiter Switch

Offers loudspeaker protection against mod-

erate ampliﬁ er clip when set to the “IN” position.

N. 5-Way Binding Post Output Jacks

One pair per channel; accept banana plugs,

spade lugs or bare wire. Note: Binding post outputs on European models come with safety plugs installed to prevent banana plugs from being inserted. Note that it is possible to lever the caps out of the binding posts, but this will invalidate the product safety approvals in some territories. The side entry positions for these connectors should therefore be used if possible.

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Operation Manual

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XLS Series Power Ampliﬁ ers

5 Advanced Features and Options

Figure 5.1 AntiClip Limiter switch

NOTE: For detailed information about these Crown ampliﬁ er features, please consult the Crown Ampliﬁ er Application Guide, available on the Crown website at www.crownaudio.com.

5.1 Protection Systems

Your Crown ampliﬁ er provides extensive protection and diagnostic capabilities, including built-in anti-clip limiters, switchable high-pass ﬁ lters, output current limiting, DC protection, fuses, and special thermal protection for the unit’s transformers.

5.1.1 Anti-Clip Limiters

Your Crown ampliﬁ er has built-in Anti-Clip Limiters which offer a degree of protection to your loudspeakers. The Anti-Clip Limiters work by dynamically reducing the ampliﬁ er gain if the output stage is driven into clip, thereby reducing potentially damaging distortion to moderate levels.

While some audio systems may already contain protective limiters preceeding the ampliﬁ er in the system, additional use of the Anti-Clip Limiters generally will not noticably affect output quality. For systems without additional protection, use of the Anti-Clip Limiters can enhance your system’s output quality and prevent catastrophic damage to your speakers.

Regardless of whether or not the Anti-Clip Limiters are enabled, your ampliﬁ er should never be operated at a level which causes the frontpanel Clip LEDs to illuminate constantly. While the Anti-Clip Limiters help to prevent damage due to signal distortion, your speakers can still be damaged by excess power dissipation.

The Anti-Clip limiters are enabled by moving the rear-panel Limiter switch to the “IN” position (see Figure 5.1).

5.1.2 High-Pass Filters

Very low frequency signals contain no useful musical energy, waste valuable ampliﬁ er power and headroom, and can be damaging to

Figure 5.2 HighPass Filter switch

Figure 5.3 Fault indicator

your speakers. Your Crown ampliﬁ er provides switchable high-pass ﬁ lters to remove these signals from each channel’s output.

For each channel, a back-panel, three-position switch provides optional settings of 30 Hz (left), 15 Hz (center), or OFF (right) (see Figure

5.2). The 30 Hz setting is suitable for all fullrange and low-frequency applications. The 15 Hz setting may be selected when the ampliﬁ er is being used to drive a sub-bass program; use only with speakers that provide a useful frequency response below 30 Hz. The OFF setting provides bypass of the high-pass ﬁ lters, for use when subsonic protection is provided elsewhere in the system.

5.1.3 Output Current Limiting

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

5.1.4 DC Protection

DC Protection disconnects the loudspeaker load in the event of an output DC offset exceeding 2V. In such an will illuminate (see Figure 5.3) and both ampliﬁ er channels will be muted. In the majority of DC protection is indicative of a faulty ampliﬁ er channel, and will be accompanied by an illuminated Clip LED, even with no input connected and level controls set at minimum. If this is the case, contact your dealer or service center.

5.1.5 Fuse

The high-voltage power supplies of your Crown ampliﬁ er are protected by a fuse. The fuse rating varies depending on model and supply voltage as follows.

230V 120V

XLS202 T6.3A T6.3A XLS402 T6.3A T10A XLS602 T6.3A T10A

event the yellow Fault LED

cases,

Figure 5.4 Ampliﬁ er fuse rating

The fuse rating for your ampliﬁ er will also be indicated on the ampliﬁ er back panel label below the power connector (see Figure 5.4).

Crown ampliﬁ ers do not blow their fuses unless something is wrong. Repeated fuse failure typically indicates problems with the ampliﬁ er or installation which should be corrected immediately.

Should the fuse need to be replaced, take care to follow these precautions:

1. Remove power before replacing.

2. Never replace the fuse with a higher rating than speciﬁ ed; this could result in a

ﬁ re hazard.

3. IMPORTANT: The orientation of the fuse drawer determines the operating voltage of your ampliﬁ er. Should the fuse need to be replaced, take care to replace the fuse drawer so that the voltage numbers displayed on the top, left corner of the drawer are correct for your local supply.

5.1.6 Thermal Protection

The Thermal Protection circuit will activate should the internal heatsink temperature exceed proper operating temperatures (194 degrees F, 90 degrees C). When the heatsink temperature has fallen to a safe level, this protection circuit will automatically be reset. Principle causes of thermal protection are: 1) Inadequate ventilation of the equipment rack;

2) Incorrect load impedance; 3) Output cable

short circuit; 4) Blocked air vent; 5) Heatsinks in need of cleaning; 6) Cooling fan failure.

The cause of your ampliﬁ er’s thermal protection state should be determined and corrected as soon as possible. Without correction, the Thermal Protection circuit will typically reactivate.

Operation Manual

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Page 12

6 Troubleshooting

XLS Series Power Ampliﬁ ers

CONDITION: Normal operation.

POSSIBLE REASON:

• This is normal operation for your amp.

CONDITION: No power to the ampliﬁ er.

POSSIBLE REASON:

• The ampliﬁ er’s “power” switch is off.

• The ampliﬁ er is not plugged into the power receptacle.

• The ampliﬁ er’s high-voltage power supply fuse has blown. Refer to the Advanced Features and Options section of this manual for instruction on fuse replacement.

CONDITION: Distorted sound.

POSSIBLE REASON:

CONDITION: No sound.

POSSIBLE REASON:

• The ampliﬁ er has just been turned on and is still in the 4-second turn-on delay.

• The ampliﬁ er is in “fault” mode. A Fault status can be triggered when one of the ampliﬁ er’s protection circuits is activated. First disconnect your speakers from the affected channel(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 fuse and replace if necessary, or return amp to Crown or an authorized Crown Service Center for servicing.

• No input signal.

• Input signal level is very low.

• Level controls are turned down.

• Speakers not connected.

KEY

page 12

• Input signal level is too high. Enable “anti-clip” Limiter switch. If Clip indicators continue to illuminate frequently, turn down your ampliﬁ er level controls. NOTE: Your ampliﬁ er should never be operated at a level which causes the Clip LEDs to illuminate constantly.

Operation Manual

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XLS Series Power Ampliﬁ ers

7 Speciﬁ cations

Minimum Guaranteed Power (watts) XLS202 XLS402 XLS602

120 VAC, 60 Hz Units, per channel, both channels driven

1 kHz with 0.1% THD

Stereo, 2 ohm (per ch.) 250 570 840 Stereo, 4 ohm (per ch.) 200 400 600 Stereo, 8 ohm (per ch.) 145 260 370

240 VAC, 50 Hz Units, per channel, both channels driven

1 kHz with 0.1% THD

Stereo, 2 ohm (per ch.) 260 610 880 Stereo, 4 ohm (per ch.) 225 445 670 Stereo, 8 ohm (per ch.) 155 275 400

Performance XLS202 XLS402 XLS602

Sensitivity (volts RMS)

for full rated power at 4 ohms 0.725 1.025 1.26

Frequency Response (at 1 watt) 20Hz - 20kHz ± 0.75 dB ± 0.75 dB ± 0.75 dB

Phase Response (degrees at 1 watt)

at 10 Hz –10 –10 –10 at 20 kHz +19 +19 +19

Signal to Noise Ratio (20 Hz to 20 kHz)

A-weighted, below rated power > 100 dB > 100 dB > 100 dB No weighting, below rated power > 97 dB > 97 dB > 97 dB

Total Harmonic Distortion (THD)

at full bandwidth power, from 20 Hz to 1 kHz < 0.15% < 0.15% < 0.15%

Intermodulation Distortion (IMD)

60 Hz and 7 kHz at 4:1, from full rated output to –40 dB < 0.3% < 0.3% < 0.3%

Damping Factor (8 ohm) 10Hz to 400Hz > 200 > 200 > 200

Crosstalk, below rated power

at 1 kHz –82 dB –82 dB –82 dB at 20 kHz –58 dB –58 dB –58 dB

Input Impedance

nominally balanced, nominally unbalanced 20 k ohms, 10 k ohms 20 k ohms, 10 k ohms 20 k ohms, 10 k ohms

Load Impedance (rated)

Note: Safe with all types of loads.

Stereo 2-8 ohms 2-8 ohms 2-8 ohms

Bridge-Mono 8 ohms 8 ohms 8 ohms Voltage Gain (at maximum output) 31 dB 31 dB 31 dB AC Line Voltage and Frequency Conﬁ gurations Available (±10%) 120 VAC/60 Hz and 230 VAC/50 Hz 120 VAC/60 Hz and 230 VAC/50 Hz 120 VAC/60 Hz and 230 VAC/50 Hz

Operation Manual

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Page 14

7 Speciﬁ cations

Construction All Models

Ventilation Flow-through ventilation from front to back. Cooling Internal heat sinks with forced-air cooling for rapid, uniform heat dissipation. Air Volume Requirements (per minute per unit) 80.15 ft³ (2.27 m³) Dimensions

Width EIA Standard 19-inch rack mount (EIA RS-310-B); Height 5.25 inch (13.3 cm) Depth (behind mounting surface) 12.6 inch (32.0 cm).

Weight XLS202 XLS402 XLS602

Net Weight 30 lbs. (13.6 kg) 31 lbs. (14.0 kg) 33 lbs. (15.0 kg) Shipping Weight 37 lbs. (16.8 kg) 38 lbs. (17.2 kg) 42 lbs. (19 kg)

XLS Series Power Ampliﬁ ers

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Operation Manual

Page 15

XLS Series Power Ampliﬁ ers

8 Service

Crown ampliﬁ ers are quality units that rarely require servicing. Before returning your unit for servicing, please contact Crown Technical Support to verify the need for servicing.

This unit has very sophisticated circuitry which should only be serviced by a fully trained technician. This is one reason why each unit bears the following label:

CAUTION: To prevent electric shock, do not remove covers. No user serviceable parts inside. Refer servicing to a qualiﬁ ed technician.

8.1 Worldwide Service

Service may be obtained from an authorized service center. (Contact your local Crown/ Amcron representative or our ofﬁ ce for a list of authorized service centers.) To obtain service, simply present the bill of sale as proof of purchase along with the defective unit to an authorized service center. They will handle the necessary paperwork and repair.

Remember to transport your unit in the original factory pack.

8.2 US and Canada Service

Service may be obtained from the factory. It is important that you have your copy of the bill of sale as your proof of purchase.

8.2.1 Factory Service

To obtain factory service, ﬁ ll out the service information page found in the back of this manual and send it along with your proof of purchase and the defective unit to the Crown factory.

For warranty service, we will pay for ground shipping both ways in the United States. Contact Crown Factory Service or Technical Support to obtain prepaid shipping labels prior to sending the unit. Or, if you prefer, you may prepay the cost of shipping, and Crown will reimburse you. Send copies of the shipping receipts to Crown to receive reimbursement.

Your repaired unit will be returned via UPS ground. Please contact us if other arrangements are required.

Factory Service Shipping Instructions:

1. Before sending a Crown product to the factory for service, ﬁ rst call the Crown Service Department for a return authorization (RA) number.

2. Be sure to ﬁ ll out the service information form that follows and enclose it with your shipment, either inside the box or in a packing slip envelope securely attached to the outside of the shipping carton. Do not send the service information form separately.

3. To ensure the safe transportation of your unit to the factory, ship it in an original factory packing container. If you don’t have the original carton, you may obtain a product service foam-in-place shipping pack from the Crown Factory Service Department at the number listed below. For non-warranty service, you may also provide your own shipping pack. Minimum recommended requirements for materials are as follows: 275

P.S.I. burst test Double-Wall carton that allows for 2-inch solid Styrofoam on all six sides of unit or 3 inches of plastic bubble wrap on all six sides of unit; securely seal the package with an adequate carton sealing tape. Do not use light boxes or “peanuts.” Damage caused by poor packing cannot be covered under warranty.

4. Do not ship the unit in any kind of cabinet (wood or metal). Ignoring this warning may result in extensive damage to the unit and the cabinet. Accessories are not needed—do not send the product documentation, cables and other hardware.

If you have any questions, please call or write the Crown Technical Support Group.

Crown Customer Service

Technical Support / Factory Service

Plant 2 SW, 1718 W. Mishawaka Rd.,

Elkhart, Indiana 46517 U.S.A.

Telephone: 574-294-8200

800-342-6939 (North America,

Puerto Rico, and Virgin Islands only)

Facsimile:

574-294-8301 (Technical Support)

574-294-8124 (Factory Service)

Internet:

http://www.crownaudio.com

Operation Manual

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Page 16

YEAR

9 Warranty

XLS Series Power Ampliﬁ ers

UNITED STATES & CANADA

SUMMARY OF WARRANTY

Crown International, 1718 West Mishawaka Road, Elkhart, Indiana 46517-4095 U.S.A. warrants to you, the ORIGINAL PURCHASER and ANY SUBSEQUENT OWNER of each NEW Crown product, for a period of three (3) years from the date of purchase by the original purchaser (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 this Warranty.

ITEMS EXCLUDED FROM THIS CROWN WARRANTY

This Crown Warranty is in effect only for failure of a new Crown product which occurred within the Warranty Period. It does not cover any product which has been damaged because of any intentional misuse, accident, negligence, or loss which is covered under any of your insurance contracts. This Crown Warranty also does not extend to the new Crown product if the serial number has been defaced, altered, or removed.

WHAT THE WARRANTOR WILL DO

We will remedy any defect, regardless of the reason for failure (except as excluded), by repair, replacement, or refund. We may not elect refund unless you agree, or unless we are unable to provide replacement, and repair is not practical or cannot be timely made. If a refund is elected, then you must make the defective or malfunctioning product available to us free and clear of all liens or other encumbrances. The refund will be equal to the actual

purchase price, not including interest, insurance, closing costs, and other ﬁ nance charges less a reasonable depreciation on the product from the date of original purchase. Warranty work can only be performed at our authorized service centers or at the factory. Warranty work for some products can only be performed at our factory. We will remedy the defect and ship the product from the service center or our factory within a reasonable time after receipt of the defective product at our authorized service center or our factory. All expenses in remedying the defect, including surface shipping costs in the United States, will be borne by us. (You must bear the expense of shipping the product between any foreign country and the port of entry in the United States including the return shipment, and all taxes, duties, and other customs fees for such foreign shipments.)

HOW TO OBTAIN WARRANTY SERVICE

You must notify us of your need for warranty service within the warranty period. All components must be shipped in a factory pack, which, if needed, may be obtained from us free of charge. Corrective action will be taken within a reasonable time of the date of receipt of the defective product by us or our authorized service center. If the repairs made by us or our authorized service center are not satisfactory, notify us or our authorized service center immediately.

DISCLAIMER OF CONSEQUENTIAL AND INCIDENTAL DAMAGES

YOU ARE NOT ENTITLED TO RECOVER FROM US ANY INCIDENTAL DAMAGES RESULTING

FROM ANY DEFECT IN THE NEW CROWN PRODUCT. THIS INCLUDES ANY DAMAGE TO ANOTHER PRODUCT OR PRODUCTS RESULTING FROM SUCH A DEFECT. SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATIONS OF INCIDENTAL OR CONSEQUENTIAL DAMAGES, SO THE ABOVE LIMITATION OR EXCLUSION MAY NOT APPLY TO YOU.

WARRANTY ALTERATIONS

No person has the authority to enlarge, amend, or modify this Crown Warranty. This Crown Warranty is not extended by the length of time which you are deprived of the use of the new Crown product. Repairs and replacement parts provided under the terms of this Crown Warranty shall carry only the unexpired portion of this Crown Warranty.

DESIGN CHANGES

We reserve the right to change the design of any product from time to time without notice and with no obligation to make corresponding changes in products previously manufactured.

LEGAL REMEDIES OF PURCHASER

THIS CROWN WARRANTY GIVES YOU SPECIFIC LEGAL RIGHTS, YOU MAY ALSO HAVE OTHER RIGHTS WHICH VARY FROM STATE TO STATE. No action to enforce this Crown Warranty shall be commenced after expiration of the warranty period.

THIS STATEMENT OF WARRANTY SUPERSEDES ANY OTHERS CONTAINED IN THIS MANUAL FOR CROWN PRODUCTS.

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Operation Manual

Page 17

XLS Series Power Ampliﬁ ers

YEAR

9 Warranty

WORLDWIDE EXCEPT USA & CANADA

SUMMARY OF WARRANTY

Crown International, 1718 West Mishawaka Road, Elkhart, Indiana 46517-4095 U.S.A. warrants to you, the ORIGINAL PURCHASER and ANY SUBSEQUENT OWNER of each NEW Crown (3) years from the date of purchase by the original purchaser (the “warranty period”) that the new Crown product is free of defects in materials and workmanship, and we further warrant the new Crown product regardless of the reason for failure, except as excluded in this Warranty.

_______________ 1 Note: If your unit bears the name “Amcron,” please

substitute it for the name “Crown” in this warranty.

ITEMS EXCLUDED FROM THIS CROWN WARRANTY

WHAT THE WARRANTOR WILL DO

We will remedy any defect, regardless of the reason for failure (except as excluded),

product, for a period of three

by repair, replacement, or refund. We may not elect refund unless you agree, or unless we are unable to provide replacement, and repair is not practical or cannot be timely made. If a refund is elected, then you must make the defective or malfunctioning product available to us free and clear of all liens or other encumbrances. The refund will be equal to the actual purchase price, not including interest, insurance, closing costs, and other finance charges less a reasonable depreciation on the product from the date of original purchase. Warranty work can only be performed at our authorized service centers. We will remedy the defect and ship the product from the service center within a reasonable time after receipt of the defective product at our authorized service center.

HOW TO OBTAIN WARRANTY SERVICE

You must notify your local Crown importer of your need for warranty service within the warranty period. All components must be shipped in the original box. Corrective action will be taken within a reasonable time of the date of receipt of the defective product by our authorized service center. If the repairs made by our authorized service center are not satisfactory, notify our authorized service center immediately.

DISCLAIMER OF CONSEQUENTIAL AND INCIDENTAL DAMAGES

YOU ARE NOT ENTITLED TO RECOVER FROM US ANY INCIDENTAL DAMAGES RESULTING FROM ANY DEFECT IN THE NEW CROWN PRODUCT. THIS INCLUDES ANY DAMAGE TO ANOTHER PRODUCT OR PRODUCTS RESULTING FROM SUCH A DEFECT.

WARRANTY ALTERATIONS

DESIGN CHANGES

We reserve the right to change the design of any product from time to time without notice and with no obligation to make corresponding changes in products previously manufactured.

LEGAL REMEDIES OF PURCHASER

No action to enforce this Crown Warranty shall be commenced after expiration of the warranty period.

THIS STATEMENT OF WARRANTY SUPERSEDES ANY OTHERS CONTAINED IN THIS MANUAL FOR CROWN PRODUCTS.

Operation Manual

page 17

Page 18

Notes

XLS Series Power Ampliﬁ ers

page 18

Operation Manual

Page 19

XLS Series Power Ampliﬁ ers

Crown Factory Service Information

Shipping Address: Crown International, Factory Service, Plant 2 SW, 1718 W. Mishawaka Rd., Elkhart, IN 46517

Phone: 1-800-342-6939 or 1-574-294-8200 Fax: 1-574-294-8124

Owner’s Name : ___________________________________________________________________________________________________________________________________________________________________________

Shipping Address : _________________________________________________________________________________________________________________________________________________________________________

Phone Number: __________________________________________________________________________________________ Fax Number: _____________________________________________________________________

Model: ______________________________________________________________________________________________ Serial Number:___________________________________________________________________

Purchase Date : ___________________________________________________________________________________________________________________________________________________________________________

NATURE OF PROBLEM

(Be sure to describe the conditions that existed when the problem occurred and what attempts were made to correct it.)

_____________________________________________________________________________________________________________________________________________________________________________

Other equipment in system: ______________________________________________________________________________________________________________________________________________________

_____________________________________________________________________________________________________________________________________________________________________________

If warranty has expired, payment will be:

Card Number:______________________________________ Exp. Date:___________________

Signature:______________________________________________________________________

Cash/Check VISA MasterCard C.O.D.

Operation Manual

ENCLOSE THIS PORTION WITH THE UNIT. DO NOT MAIL SEPARATELY.

page 19

Page 20

Crown Audio XL User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual