Crown Audio D-75A User Manual

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D Series Power Amplifiers

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Operation Manual

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

Declaration of Conformity ...........................................................3

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

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

1.2 How to Use This Manual ..................................................5

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

2.1 Unpack Your Amplifier......................................................6

2.2 Install Your Amplifier .......................................................6

2.3 Ensure Proper Cooling ....................................................6

2.4 Choose Input Wire and Connectors .................................7

2.5 Choose Output Wire and Connectors ...............................7

2.6 Wire Your System ............................................................8

2.6.1 Dual Mode ..............................................................8

2.6.2 Bridge-Mono Mode ................................................8

2.7 Connect to AC Mains .......................................................9

2.7.1 AC Mains Voltage Configuration ............................9

2.8 Startup Procedure ............................................................9

3 Operation .................................................... 10

3.1 Precautions ......................................................................10

3.2 Controls, Indicators and Connectors ...............................11

3.3 Indicators ........................................................................12

3.4 Controls ..........................................................................12

3.5 Fuse Replacement ...........................................................12

4 Advanced Features and Options ......................... 13

4.1 Protection ......................................................................13

4.2 Options ...........................................................................13

4.2.1 Bridge-Mono Option ..............................................13

4.2.2 Input-Sensitivity Option ..........................................13

5 Troubleshooting ............................................ 14

6 Specifications .............................................. 15

7 Service ....................................................... 17

7.1 Worldwide Service ...........................................................17

7.2 US and Canada Service ...................................................17

7.2.1 Service at a US or Canada Service Center ..............17

7.2.2 Factory Service .......................................................17

7.2.3 Factory Service Shipping Instructions .....................17

8 Warranty ..................................................... 18

Crown Factory Service Information Form ....................................21

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