background image

®

Models:

D-45 & D-75A

Some models may be exported under the name 

Amcron.

®

SIGNAL

IOC

CHANNEL 1

CHANNEL 2

HEADPHONES

POWER

OFF          ON

LEVEL

30

50

40

0

10

20

LEVEL

30

50

40

0

10

20

SIGNAL

IOC

CHANNEL 1

CHANNEL 2

HEADPHONES

POWER

OFF          ON

LEVEL

30

50

40

0

10

20

LEVEL

30

50

40

0

10

20

© 1996 by Crown International, Inc., P.O. Box 1000, Elkhart, Indiana 46515-1000 U.S.A. Telephone:
219-294-8000. D Series amplifiers are produced by the Professional Audio Division of Crown
International, Inc. Trademark Notice: 

Amcron,

®

 

Crown

®

 and 

IOC

®

 are registered trademarks of Crown

International, Inc. Other trademarks are the property of their respective owners.

100668-1

10/96

Printed on

recycled paper.

Applies only to 120 VAC

North American units.

E106377

D SEries

Summary of Contents for D-45

Page 1: ...0 0 10 20 1996 by Crown International Inc P O Box 1000 Elkhart Indiana 46515 1000 U S A Telephone 219 294 8000 D Series amplifiers are produced by the Professional Audio Division of Crown Internationa...

Page 2: ...A warrants to you the ORIGINAL PURCHASER and ANY SUBSEQUENT OWNER of each NEW Crown prod uct for a period of three 3 years from the date of purchase by the original purchaser the warranty period that...

Page 3: ...G TO REDUCE THE RISK OF ELECTRIC SHOCK DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE Magnetic Field CAUTION Donotlocatesensitivehigh gainequip ment such as preamplifiers or tape decks directly abov...

Page 4: ...Page 4 D 45 D 75A Power Amplifiers...

Page 5: ...er s performance Crown further protects your investment with the industry s only three year No Fault full warranty After learning about your amplifier s fea tures facilities and capabilities you ll un...

Page 6: ...al and bridge mono modes have important wiring differences so be sure to note the requirements for the mode you select D U A L Dual mode installation is very intuitive The channel 1 input feeds the ch...

Page 7: ...hannel 1 input feeds both outputs and the channel 2 output is inverted To use bridge mono mode without bridging the outputs wire your loudspeakers as you would for dual mode but invert the polarity of...

Page 8: ...nductors together when making or breaking connections for example a stan dard three wire stereo phone plug 3 Never use connectors that can be plugged into an AC power receptacle 4 Avoid connectors wit...

Page 9: ...other loads of less than 3 ohms install an isolating ca pacitor in series with the positive output Such operation may damage the load and needlessly activate the amplifier s V I limiting 7 Operate th...

Page 10: ...ms or higher should not activate the protection system All voltage amplification circuitry is designed to limit current So in the extremely unlikely event of a device failure the amplifier will preven...

Page 11: ...setting Power Output Power Note Maximum average power per channel at 1 kHz with 0 1 or less THD D 45 Dual mode both channels driven 35 watts into 4 ohms 25 watts into 8 ohms 20 watts into 16 ohms Bri...

Page 12: ...rotection for short cir cuits open circuits and mismatched loads Turn On Minimum thumps Power up is instantaneous with no program delay Construction Durable black finish on aluminum front panel with g...

Page 13: ...Bridge Mono balanced output FTC Continuous Average Power at 0 1 THD See note 1 20Hz 20kHz 1 kHz Single Cycle Tone Burst Watts at 0 05 THD See note 3 40 mS Tone Burst Watts at 0 05 THD See note 4 1 kH...

Page 14: ...cal Support Group 5 2 2 Factory Service To obtain factory service fill out the service informa tion page that follows and send it along with your proof of purchase and the defective unit to the Crown...

Page 15: ..._________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ________...

Page 16: ...Page 16 D 45 D 75A Power Amplifiers...

Page 17: ...sis CAUTION Only a qualified technician should at tempt to change the amplifier s internal settings A 1 1 Opening the Amplifier Chassis Before undertaking this procedure please read Ap pendix A 1 2 an...

Page 18: ...r amplifier has excellent cross talk characteristics so each channel can be used as an independent single channel amplifier For common stereo applications left and right source signals can be connecte...

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