JVC RX-D402, RX-D702, RX-D401 manual Hybrid Feedback Digital Amplifier

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5 Hybrid Feedback Digital Amplifier

JVC-exclusive Hybrid Feedback Digital Amplifier enables a lot more than the compact dimensions of the A/V receivers. Featuring dual analog feedback and digital feedback circuits, this device significantly “brushes up” the input signals, which ensures significantly lowered total harmonic distortion -- to 0.004% -- and superior speaker driveability. The result is high-quality sound matching that from a high-grade analog amp.

The RX-D702 and RX-D402/D401 come with an upgraded “Ver. III” device, which incorporates a wide range of technological improvements for even better sound quality.

Hybrid Feedback Digital Amplifierplifier

Background -- What is PWM?

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Problems of Digital Amplifiers

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Evolution of Hybrid Feedback Digital Amplifier (1)

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Evolution of Hybrid Feedback Digital Amplifier (2)

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Evolution of Hybrid Feedback Digital Amplifier (3)

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Hybrid Feedback Digital Amplifierplifier VerVer.. IIIIII ----

Technological Improvementt forfor EvenEven Better Sound

Low-Voltage Power Supply

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One-Chip Solution with JCV8015

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JCV8015 Benefits (1)

-- Operational Amp

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JCV8015 Benefits (2)

-- PWM Modulator/External Clock

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JCV8015 Benefits (3)

-- ±2.5V Regulator

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Quality Parts for Superior Sound Reproduction

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Comparison of Speaker Driveability

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T.H.D. Comparison of Digital Amplifiers

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Contents Page High-Power 7.1-Channel A/V Control Receiverseivers Design Concepts Hdmi Hdmi Hdmi Cables Ch AudioAudio + 9 Video Cables Component VideoPb Pr 480i/p HD, 480pComposite S-Video Component 480i 480pWhatWhatisisDCDiDCDibybyFAROUDJA?FAROUDJA? 3D DeinterlacerCross-Color Suppression EffectEffectExamplesExamples113D Deinterlacer Jagged Edges on Diagonal LinesFleshtone Adaptive Noise Reduction EffectEffectExamplesExamples22Wireless USB Connection Desk-Top PC USB ConnectionTransmitter User ID Learning Function Auto ScanChannel Key ID Key Format ComparisonComparisonofofSignalSignalFormatsFormatsBluetooth Wifi/802.11bAll-digital transmission --No D/A or A/D conversion CC Converter BackgroundBackground For CDs, DVDs, etcProblemsProblemswithwithDigitalDigitalConversionConversion D/A Conversion in Amplitude Domain D/A Conversion in Frequency Domain CCCCConverterConverter BitBitExpansionExpansionSectionSection RangeRangeExpansionExpansionSectionSection FrequencyFrequencyConversionConversionSectionSectionCC Converter Expansion on Expansion OFF Converter Noise Shaping Response Theoretical Noise Shaping Response/Noise SpectrumNoise Spectrum DVD Audio AnalogAnalog IninDIR JVC exclusive DSP JVC exclusive DSP AdvantagesJVC’sJVC’sDSPDSP SoundSoundFieldFieldAnalysisAnalysisRayRayTracingTracing RearImpulse Response Theater Live Club DAPDAPModesModes11DAP Modes for RX-D702/D402/D401 DAPDAPModesModes22BandBandGraphicGraphicEqualizationEqualization Outout 3D3DHeadphoneHeadphoneMidnightMidnightModeMode InputoutputCenterCenter--ChannelChannelAlignmentAlignment SmartSmartSurroundSurroundSetupSetup Hybrid Feedback Digital Amplifier Heat Generation Background -- What is PWM?Switching Power Supply with Highly-Efficient Operations Generation of PWM SignalsAnalog-PWM Problems of Digital AmplifiersModulator Evolution of Hybrid Feedback Digital AmplifierHybrid Feedback Digital Amplifier Ver JCV8015 + Power Supply Low-Voltage Power SupplyPower Supply One-Chip Solution with JCV8015 High Slew Rate JCV8015 Benefits 1 -- Operational AmpHigh-Precision Triangular Waves JCV8015 Benefits 2 -- PWM Modulator/External ClockUltra-High-Speed Comparator Analog GND Analog SignalsJCV8015 Benefits 3 -- ±2.5V Regulator VCC AnalogQuality Parts Superior Sound Reproduction IRS20124Comparison of Speaker Driveability RX-D702 Non-Feedback AmpD. Comparison of Digital Amplifiers 004%Supplementary Information OSD Superimposed on Screen RX-D702BControl Receiver Basic Features Product HighlightsRX-D402BControl Receiver Basic FeaturesFor RX-D702B For RX-D402B/RX-D401S RX-D702B RX-D402B/RX-D401S

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.