CROWN – NCT475A-U-IN

194,999.00

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At the heart of this exceptional amplifier is DriveCore™ technology, a groundbreaking innovation that merges the amplifier’s drive stage directly into the power output stage within a single, compact chip. This chip, about the size of a dime, integrates advanced circuitry to harness the efficiency of Class D output stages while preserving superior audio performance. DriveCore™ utilizes sophisticated front-end drive circuits that ensure the amplifier operates with high efficiency, surpassing 90%, without compromising sound quality. The result is an audio amplifier that combines the high-fidelity audio characteristics of a refined Class AB design with the energy efficiency and compactness of Class D technology. This fusion delivers an amplifier that not only meets rigorous performance standards but also excels in producing clear, detailed sound, making it an ideal choice for both professional and consumer audio applications.

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The Evolution of Amplification: DriveCore™ Technology

At the heart of this exceptional amplifier lies the revolutionary DriveCore™ technology, a pioneering advancement in audio amplification that redefines performance and efficiency. DriveCore™ represents a significant leap forward by seamlessly integrating the amplifier’s drive stage directly into the power output stage. This integration condenses the amplifier’s critical components into a single, compact chip no larger than a dime. This innovation is not just a technical marvel but a transformative approach to amplifier design that delivers unprecedented benefits in audio quality, efficiency, and reliability.

Integration and Efficiency

The essence of DriveCore™ technology lies in its ability to merge the drive and output stages into one compact chip. Traditional amplifiers typically separate these stages, requiring multiple components and complex circuitry, which can lead to inefficiencies and potential reliability issues. By contrast, DriveCore™ reduces the number of parts needed by integrating them into a single chip. This reduction not only streamlines the design but also minimizes the potential for component failure, resulting in a more robust and reliable amplifier.

The efficiency of DriveCore™ technology is another standout feature. Leveraging the inherent advantages of Class D output stages, DriveCore™ amplifiers achieve efficiency levels exceeding 90%. Class D amplifiers are known for their high efficiency due to their switching nature, which reduces power loss and heat generation compared to traditional Class AB designs. DriveCore™ takes this efficiency to the next level by optimizing the drive stage, ensuring that power is utilized more effectively and reducing overall power consumption.

Audio Quality and Performance

Despite its high efficiency, DriveCore™ technology does not compromise on audio quality. The front-end drive circuits of the DriveCore™ chip are engineered to maintain the superb sonic characteristics of a Class AB amplifier. Class AB amplifiers are renowned for their excellent audio performance, including low distortion and accurate signal reproduction. DriveCore™ combines the best aspects of Class D efficiency with the exceptional sound quality typically associated with Class AB designs. The result is an amplifier that not only performs efficiently but also delivers audio with outstanding clarity, fidelity, and dynamic range.

Design and Practical Benefits

DriveCore™ amplifiers are designed to provide top-notch performance in a compact and practical form factor. The integration of multiple stages into a single chip allows for a more compact amplifier design. This is particularly advantageous for applications where space is at a premium, such as in professional audio systems, commercial installations, and high-performance home theaters. The smaller footprint of DriveCore™ amplifiers means they can be more easily integrated into various setups without sacrificing performance.

Furthermore, the efficiency of DriveCore™ technology contributes to the overall reliability and longevity of the amplifier. With less heat generated during operation, there is less strain on the components, which helps to extend the lifespan of the amplifier and reduce maintenance needs.

Conclusion

In summary, DriveCore™ technology represents a groundbreaking advancement in amplifier design. By integrating the amplifier drive stage into the power output stage within a single chip, DriveCore™ delivers exceptional efficiency, reliability, and audio performance. This innovative approach merges the best features of Class D and Class AB designs, resulting in an amplifier that excels in both power efficiency and sound quality. The compact design and high efficiency of DriveCore™ amplifiers make them an ideal choice for a wide range of applications, from professional audio systems to commercial installations, where both performance and space considerations are critical.

Specifications

Channels 4
Sensitivity 1.4 V
Rated Power Output (all channels driven) 75W per CH @ 4 ohms, 75W per CH @ 8 ohms
Signal to Noise Ratio (below rated power 20 Hz to 20 kHz, A-Weighted) 110 dB
THD (full rated power, 20 Hz – 20 kHz) < 0.05%
Intermodulation Distortion (from 0 dB down to -30 dB) < 0.05%
Frequency Response (at 1W, 4/8 ohms) +/- 0.5 dB
Crosstalk (below rated power) 20 Hz to 1 kHz > 70 dB
Common Mode Rejection (20 Hz to 1 kHz) > 55 dB, typically > 70 dB
Voltage Gain 25 dB
DC Offset +/- 20mV
Idle Power Consumption (Standard Mode) 15.0W
Dimensions 1.75″ x 19″ x 15.19″
Weight 10lbs/4.54kg
Shipping Weight 15 lbs/6.8 kg
IEC Power Connector 15A

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