Crown D Series Operation Manual
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Crown D Series Operation Manual

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D Series
30
30
OFF
ON
CHANNEL 1
CHANNEL 2
40
20
40
20
D-45
50
10
50
10
IOC
0
0
HEADPHONES
LEVEL
SIGNAL
LEVEL
POWER
Operation Manual
D-75A
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. To obtain the latest version of this manual, please visit the Crown website at www.crownaudio.com.
Trademark Notice: Crown, Crown Audio, Amcron and IOC are registered trademarks of Crown International. Other trademarks are the
property of their respective owners.
®
Some models may be exported under the name Amcron.
®
©2007 by Crown Audio
Inc., 1718 W. Mishawaka Rd., Elkhart, Indiana 46517-9439 U.S.A. Telephone: 574-294-8000
125243-10
10/07

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Summary of Contents for Crown D Series

  • Page 1 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, Amcron and IOC are registered trademarks of Crown International. Other trademarks are the property of their respective owners.

  • Page 2: Important Safety Instructions

    D Series Power Amplifiers Important Safety Instructions IMPORTANT D Series amplifiers require Class 2 output wiring. Read these instructions. TO COMPLETELY DISCONNECT THIS EQUIPMENT FROM Les amplificateurs de série de D exigent des câbles de sortie de Keep these instructions.

  • Page 3: Declaration Of Conformity

    D Series Power Amplifiers DECLARATION of CONFORMITY Crown International, Inc. COMPLIANCE QUESTIONS ONLY: Sue Whitfield Issued By: Crown International, Inc. 574-294-8289 1718 W. Mishawaka Road swhitfield@crownintl.com Elkhart, Indiana 46517 U.S.A. European Representative's Name and Address: Nick Owen 35, Bassets Field Thornhill Cardiff.

  • Page 4: Table Of Contents

    7.2.5 Estimate Approval............17 3 Operation ............ 10 7.2.6 Payment of Non-Warranty Repairs......17 3.1 Precautions ..............10 8 Warranty ............. 18 3.2 Controls, Indicators and Connectors .......11 Product Registration..............21 3.3 Indicators .................12 Crown Factory Service Information Form ........23 page 4 Operation Manual...

  • Page 5: Welcome

    • High damping factor provides exceptional loudspeaker motion control. In addition, D Series amplifiers include a num- ber of features which require some explanation • Convection cooling system eliminates fan before they can be used to their maximum noise and maintenance.

  • Page 6: Setup

    (counterclockwise). ping damage. Crown will be happy to help as inches (5.1 cm) away from the amplifier sides, and needed. Save the shipping carton as evidence of the back of the rack should be a minimum of four Use a standard 19-inch (48.3 cm) equipment rack...

  • Page 7: Choose Input Wire And Connectors

    D Series Power Amplifiers 2 Setup 2.4 Choose Input Wire and Connectors Figure 2.3 shows connector pin assignments for balanced wiring, and Figure 2.4 shows connec- tor pin assignments for unbalanced wiring. NOTE: Custom wiring should only be per- formed by qualified personnel.

  • Page 8: Wire Your System

    Do not use the negative terminals when the ampli- authorized Crown Service Center. fier is being operated in Bridge-Mono mode. NOTE: Crown provides a reference of wiring pin assign- ments for commonly used connector types in the Crown Amplifier Application Guide available at www.crownau- dio.com.

  • Page 9: Connect To Ac Mains

    Connect your amplifier to the AC mains power frequency of 50 to 400 Hz, and can be config- source (power outlet) with the supplied AC ured by an authorized Crown Service Center for power cordset. five different line voltages: 100, 120, 200, 220 WARNING: The third prong of this con- and 240 VAC.

  • Page 10: Operation

    3. Do not short the ground lead of an output cable age. to the input signal ground. This may form a Remember: Crown is not liable for damage that ground loop and cause oscillations. results from overdriving other system components.

  • Page 11: Controls, Indicators And Connectors

    D Series Power Amplifiers 3 Operation WARNING: HEADPHONE JACK 3.2 Controls, Indicators and Con- SUPPLIES FULL OUTPUT POWER AND nectors MAY DAMAGE HEADPHONES OR Figure Figure 3.1 shows the controls, indica- CAUSE HEARING DAMAGE. tors and connectors on the front panel and back panel of the D-75A.

  • Page 12: Indicators

    D Series Power Amplifiers 3 Operation 3.3 Indicators the unit’s fuse, you should be sure to fix the source of the problem. If the problem is not Your amplifier has five front panel indicators. immediately apparent, the unit probably needs First, a power indicator behind the front panel to be serviced by a qualified technician.

  • Page 13: Advanced Features And Options

    V-I limiter that protect the amplifier from high- frequency (RF) blowups. A Crown Service Center can activate the 0.775 volt input sensitivity without voiding the war- ranty. Operation Manual page 13...

  • Page 14: Troubleshooting

    The amplifier output level is so high that the power supply fuse has blown. Verify that input levels and output impedances are within safe ranges. Refer the unit to an authorized Crown service center for • There is a short on the amplifier fuse replacement.

  • Page 15: Specifications

    D Series Power Amplifiers 6 Specifications Minimum Guaranteed Power D-45 D-75A 120V/60 Hz Units, Dual mode, per channel, both channels driven 1 kHz with 0.1% THD 4 ohms 8 ohms 16 ohms 120V/60 Hz Units, Bridge mono mode 1 kHz with 0.1% THD...
  • Page 16 D Series Power Amplifiers 6 Specifications D-45 Max. Aver- Single-Cycle Tone Burst 40 mS Tone Burst EIA Watts at FTC Continuous age Power at Configuration and Load Watts at < 0.05% THD Watts at < 0.05% THD 1% THD Average Power at 0.1% THD 0.1% THD...

  • Page 17: Service

    For more information, please contact us direct. of carton) and re-seal the shipping pack with a form, in the back of this manual, when returning a Crown ware, etc.) with your unit. These items are not sturdy carton sealing tape.

  • Page 18: Warranty

    United you are deprived of the use of the new Crown Warranty is only valid within the country in which States, will be borne by us. (You must bear the product.
  • Page 19 DESIGN CHANGES WARRANTY tive product at our authorized service center. This Crown Warranty is in effect only for failure of We reserve the right to change the design of any HOW TO OBTAIN WARRANTY SERVICE a new Crown product which occurred within the...
  • Page 20 D Series Power Amplifiers NOTES page 20 Operation Manual...

  • Page 21: Product Registration

    D Series Power Amplifiers PRODUCT REGISTRATION Crown International 1718 W. Mishawaka Rd. Elkhart, IN 46517-9439 Phone: 574-294-8000 Fax: 574-294-8329 www.crownaudio.com Online registration is also available at http://crownweb.crownintl.com/webregistration. Warranty is only valid within the country in which the product is purchased.
  • Page 22 D Series Power Amplifiers THIS PAGE INTENTIONALLY LEFT BLANK page 22 Operation Manual...

  • Page 23: Crown Factory Service Information Form

    D Series Power Amplifiers Crown Audio Factory Service Information Shipping Address: Crown Audio Factory Service, 1718 W. Mishawaka Rd., Elkhart, IN 46517 PLEASE PRINT CLEARLY SRA #: __________________(If sending product to Crown factory service.) Model: _________________________________ Serial Number: _____________________ Purchase Date: ________________...
  • Page 24 http://www.audiovias.com...

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D-75aD-45

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