Crown Audio D-45, D-75A operation manual Specifications

Page 15

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

35W

55W

8 ohms

25W

40W

16 ohms

20W

25W

 

 

 

120V/60 Hz Units, Bridge mono mode

 

 

 

 

 

1 kHz with 0.1% THD

 

 

8 ohms

70W

110W

16 ohms

50W

80W

Performance

D D-455

D- D-75AA

Frequency Response (at 1 watt, 20Hz - 20 kHz)

± 0.1 dB

± 0.1 dB

 

 

 

Phase Response (at 1 watt, 20Hz - 20 kHz)

+10° to -15°

+10° to -15°

 

 

 

Signal to Noise Ratio (below rated power, 20 Hz to 20 kHz)

106 dB unweighted

106 dB unweighted

 

 

 

Total Harmonic Distortion (THD) at 1 watt, from 20 Hz to 20 kHz

< 0.05%

< 0.05%

 

 

 

Intermodulation Distortion (IMD) 60 Hz and 7 kHz at 4:1,

< 0.01%

< 0.01%

from.25 watts to full bandwidth power

 

 

 

 

 

Damping Factor: DC to 400 Hz

> 400

> 400

 

 

 

Crosstalk (below rated power, 100 Hz to 1 kHz)

>100 dB

> 100 dB

 

 

 

Input Impedance nominally balanced, nominally unbalanced

20 kilohms, 10 kilohms

20 kilohms, 10 kilohms

 

 

 

Load Impedance (Note: Safe with all types of loads)

 

 

Stereo

4-16 ohms

4-16 ohms

Bridge Mono

8-16 ohms

8-16 ohms

 

 

 

Required AC Mains

120 VAC, 60 Hz

120 VAC, 60 Hz

North American units

100, 120, 200, 220, and 240 VAC (± 10%), 50 to 400 Hz

100, 120, 200, 220, and 240 VAC (± 10%), 50 to 400 Hz

International units

depending on the transformer configuration

depending on the transformer configuration

 

 

 

 

Power Draw at Idle

15 W or less

15 W or less

 

 

 

Cooling

Convection cooled through chassis and front panel

Convection cooled through chassis and front panel

 

 

 

Dimensions: Width, Height, Depth

19 in. (48.3 cm) x 1.75 in. (4.5 cm) x 8.5 in. (21.6 cm)

19 in. (48.3 cm) x 1.75 in. (4.5 cm) x 8.5 in. (21.6 cm)

 

 

 

Net Weight, Shipping Weight

8 lb. 11 oz. (3.9 kg), 10 lb. 9 oz. (5.1 kg)

9 lb. 7 oz. (4.3 kg), 11 lb. 4 oz. (5.1 kg)

 

 

 

Operation Manual

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Image 15
Contents Some models may be exported under the name Amcron 75AUse only with a cart, stand, bracket, or table Important Safety InstructionsSeries amplifiers require Class 2 output wiring Watch for These SymbolsEuropean Representative’s Name and Address Safety StandardDeclaration of Conformity Crown International, IncTable of Contents Detented level controls for precise repeat- ability FeaturesHow to Use This Manual WelcomeSetup Unpack Your Amplifier Install Your AmplifierManual Choose Input Wire Connectors Choose Output Wire and ConnectorsCrown recommends using professionally con- structed, high Wire Your System Dual Mode Bridge-Mono ModeInputs Connect input wiring only to CH Turn up the level of your audio source to an optimum level AC Mains Voltage Configura TionStartup Procedure Connect to AC MainsOperation PrecautionsFront and Back Views Controls, Indicators and Con- nectorsIndicators Fuse ReplacementControls Protection Options Bridge-Mono OptionInput-Sensitivity Option Condition Power indicator is off TroubleshootingSpecifications 50 Hz KHz 20 Hz Dual 120 KHz 20 Hz 50 Hz DualBridge-Mono 105 145 KHzService Warranty Worldwide Except USA & Canada Items Excluded from this CROWN- WarrantySeries Power Amplifiers Nature of Problem Crown Factory Service InformationThis page Intentionally Left Blank Series Power Amplifiers

D-45, D-75A specifications

Crown Audio has earned its reputation as a leader in professional audio solutions, with a commitment to delivering high-quality amplifier technology that meets the demands of audio professionals across various applications. Two notable models in their lineup are the Crown D-75A and D-45, both of which embody unique features that are tailored for versatility and superior performance.

The Crown D-75A is a high-performance power amplifier designed for applications where exceptional sound quality is essential. With an output power of 75 watts per channel into 8 ohms, this amplifier is capable of driving a wide range of loudspeakers, making it an excellent choice for installations in commercial venues or high-end residential systems. One of its standout features is the ability to operate in both stereo and bridged mono modes, allowing for flexible configuration options. The D-75A also incorporates Crown’s patented Class I technology, which enables it to maintain high efficiency while minimizing distortion and heat generation.

On the other hand, the Crown D-45 offers a slightly lower output power, rated at 45 watts per channel into 8 ohms. Despite its smaller size, the D-45 packs a punch with its robust performance and advanced technologies. This amplifier is well-suited for smaller venues or as a part of an audio system where space is a concern. Just like the D-75A, the D-45 features the ability to run in stereo or bridged mono modes, providing users with flexibility in setup.

Both amplifiers incorporate user-friendly front-panel controls, including level adjustments and power indicators, allowing for easy operation and monitoring. Furthermore, they are engineered with short-circuit and thermal overload protection, ensuring longevity and reliability in demanding environments.

In terms of connectivity, the D-75A and D-45 come equipped with professional-grade XLR and RCA input options, facilitating seamless integration into various audio systems. Their durable construction is designed to withstand the rigors of professional use, while also being aesthetically pleasing for any installation.

In conclusion, the Crown Audio D-75A and D-45 amplify the brand’s commitment to quality and innovation, providing professionals with dependable solutions that do not compromise on sound fidelity. Whether for a small venue or a large installation, these amplifiers deliver the performance and features audio engineers seek, making them an excellent choice in the competitive world of sound reinforcement.