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.

Figure 2.3 Balanced

Figure 2.4 Unbalanced

Input Connector

Input Connector

Wiring

Wiring

2.5Choose Output Wire and Connectors

Crown recommends using professionally con- structed, high-

quality, two- or four-conductor, heavy gauge speaker wire and connectors. You may use ter- minal forks or bare wire for your output connec- tors (see Figure 2.5). To prevent the possibility of short-circuits, wrap or otherwise insulate exposed loudspeaker cable and connectors.

Using the guidelines below, select the appropri- ate size of wire based on the distance from amplifier to speaker.

Distance

Wire Size

up to 25 ft.

16 AWG

26-40 ft.

14 AWG

41-60 ft.

12 AWG

Over 60 ft.

10 AWG

CAUTION: Never use shielded cable for output wiring.

Figure 2.5 Output Connector Wiring

Operation Manual

page 7

Page 7
Image 7
Crown Audio D-45, D-75A operation manual Choose Input Wire Connectors, Choose Output Wire and Connectors

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.