CC Converter

Problem:Problem:AAhighhigh--frequencyfrequencyanaloganalogsignalsignalcannotcannotbebeaccuratelyaccuratelyrecreatedrecreatedbybyA/DA/DandandD/AD/Aconversionconversion..(2)(2)

RX-D702

The “sampling theorem” says that, if the sampling frequency is more than twice as high as the maximum frequency of original signal, then the original signal can be retrieved by A/D and D/A conversion. With CDs, the sampling frequency is 44.1kHz, meaning the maximum frequency is band-limited to 22.05kHz. Therefore, the information on the waveform for over- 22.05kHz frequencies is not transmitted.

Unless it’s sinusoidal, a signal contains multiple high-order harmonics. So does a square wave. If the input is a 1kHz square wave signal, it retains its shape because much of the information on the waveform for harmonics is retained after the A/D and D/A conversion. But if the input is a square wave of a high frequency, the converted signal presents

a rounded shape because of the absence of information on high frequencies.

A/D and D/A Conversion in Frequency Domain

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JVC RX-D702, RX-D402, RX-D401 manual D/A Conversion in Frequency Domain
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RX-D401, RX-D402, RX-D702 specifications

The JVC RX-D702, RX-D402, and RX-D401 are remarkable receivers that exemplify JVC's commitment to delivering high-quality audio and advanced technology for home entertainment. Each model presents distinct features while maintaining a strong foundation of performance, making them suitable for various listening needs.

The JVC RX-D702 serves as a flagship model, offering exceptional audio quality and a plethora of connection options. It supports Dolby Atmos and DTS:X, providing an immersive sound experience that enhances movies, music, and games. The receiver supports 4K HDR video pass-through, ensuring high-resolution visuals. Featuring Wi-Fi connectivity, the RX-D702 allows instant streaming from various music services and seamless integration with smart home devices. The intuitive on-screen interface and remote app make navigation simple, providing users with easy access to settings and configurations.

In standby mode, the RX-D702 features low power consumption, a key consideration for eco-minded consumers. The model also showcases a robust power rating, ensuring it delivers dynamic sound with strength and clarity across different audio formats. Equipped with multiple HDMI inputs, audio and video signal routing becomes effortless, making it a perfect solution for multi-device setups.

The JVC RX-D402 is designed for users who desire powerful audio features without the extensive capabilities of the RX-D702. While it doesn’t support the latest surround sound formats like Dolby Atmos, it provides excellent stereo sound with a solid power output. The RX-D402 includes essential streaming services and Bluetooth connectivity, allowing users to enjoy music wirelessly from devices. Its compact size makes it ideal for smaller rooms where space may be a limitation.

Lastly, the RX-D401 remains a user-friendly receiver, appealing to budget-conscious consumers who still want quality performance. It offers essential audio performance and basic connectivity options, including Bluetooth and USB inputs. The RX-D401 is perfect for casual listeners who enjoy music without the complexity of advanced surround sound formats.

In summary, the JVC RX-D702, RX-D402, and RX-D401 offer a variety of features and technologies, catering to all kinds of audio preferences. From the high-end capabilities of the RX-D702 to the straightforward functionality of the RX-D401, JVC's receivers ensure impressive sound quality tailored to different environments and user needs.
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