Denon AVR-X4500H vs Denon AVR-S640H

      Denon AVR-X4500H

      Denon AVR-S640H
      93
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      80
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      UK
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      Highlights

      • 9.2 Channels
      • 11.2 Channel Processing
      • 125 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven)
      • Dolby Atmos, DTS:X, Auro 3D
      • HDR10, Dolby Vision
      • 4K/60Hz Passthrough, 4K/60Hz Upscaling
      • Wi-Fi, Bluetooth, Ethernet
      • Phono Input

      Highlights

      • 5.2 Channels
      • 5.1 Channel Processing
      • 75 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven)
      • HDR10, Dolby Vision
      • 4K/60Hz Passthrough
      • Wi-Fi, Bluetooth, Ethernet
      • Phono Input

      Disclosure: We earn money from the affiliate links to products associated with content in this article.

      Table of Contents
      1. Overview
      2. Pros and Cons
      3. Advantage of Denon AVR-X4500H
      4. Advantage of Denon AVR-S640H
      5. Common Strengths and Weaknesses
      6. Amplifier
      7. Speaker Configurations
      8. Immersive Audio Formats
      9. HDMI
      10. Inputs and Outputs
      11. Evaluations
      12. Specifications

      1. Overview

      Here we are comparing Denon AVR-X4500H to Denon AVR-S640H to reveal their common strengths and weaknesses as well as the differences between them which will help you in making a correct decision before the purchase. The Denon AVR-X4500H has 9 channel and the Denon AVR-S640H has 5 channel amplifiers with Denon AVR-X4500H's being more powerful.


      Denon AVR-X4500H Denon AVR-S640H

      Denon AVR-X4500H was introduced in 2018. It is equipped with 9 channel amplifier with 125 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven) power per channel and is capable of 11.2 maximum channel processing. It supports Dolby Atmos, DTS:X and Auro-3D, passes 4K/60Hz and upscales up to 4K 50/60Hz 4:4:4 video signal.

      Denon AVR-S640H was introduced in 2018. It is equipped with 5 channel amplifier with 75 W (8 Ω, 20 Hz - 20 kHz and 2 channel driven) power per channel and is capable of 5.1 maximum channel processing. It , passes 4K/60Hz video signal.

      We evaluated Denon AVR-X4500H and Denon AVR-S640H and gave them scores of 93 and 80 out of 100 recpectively. Our ranking system is based on the amplifier specifications, audio and video features, connectivity, multizone capabilities, radio and many other details.

      Denon AVR-X4500H

      Denon AVR-S640H

      Amplifier
      92
      Amplifier
      84
      Audio Features
      93
      Audio Features
      66
      Video Features
      96
      Video Features
      94
      Connectivity
      90
      Connectivity
      82
      Zones
      92
      Zones
      55
      Radio
      92
      Radio
      96
      OVERALL
      93
      OVERALL
      80

      For more details about the ranking please go to    Evaluations section.

      2. Pros and Cons

      In this section we present pros and cons of Denon AVR-X4500H and Denon AVR-S640H.

      PROS

      Denon AVR-X4500H

      Denon AVR-S640H

      •   High Power Output - 125 W
      •   11.2 Channel Processing
      •   Dolby Atmos
      •   DTS:X
      •   IMAX Enhanced
      •   Auro 3D with Auro-Matic Upmixer
      •   DSD via HDMI
      •   Auto Speaker Calibration System with Mic.
      •   HDR10
      •   Dolby Vision
      •   eARC
      •   New HDCP Version
      •   Auto Low Latency Mode Pass-through
      •   Analog To HDMI Upconversion
      •   Wi-Fi
      •   Bluetooth
      •   Works with Amazon Alexa
      •   HEOS
      •   8 HDMI Inputs
      •   4 HDMI Outputs
      •   USB Input
      •   Phono Input
      •   RCA Pre-Outs
      •   Composite Video Inputs
      •   Component Video Inputs
      •   Ethernet
      •   3 Zones
      •   Analog Tuner
      •   Spotify
      •   Tidal
      •   Auto Speaker Calibration System with Mic.
      •   HDR10
      •   Dolby Vision
      •   New HDCP Version
      •   Auto Low Latency Mode Pass-through
      •   Wi-Fi
      •   Bluetooth
      •   Works with Amazon Alexa
      •   HEOS
      •   USB Input
      •   Phono Input
      •   Composite Video Inputs
      •   Ethernet
      •   Analog Tuner
      •   Pandora
      •   Spotify
      •   Tidal

      CONS

      Denon AVR-X4500H

      Denon AVR-S640H

      •   No Front Wide Channel Support
      •   No Dolby Atmos Height Virtualization
      •   No HDR10+
      •   No 8K Passthrough
      •   0 8K Input
      •   No Digital Radio
      •   No Pandora
      •   Bluetooth 3․0 + EDR
      •   Few Channels - 5.2
      •   Low Power Output - 75 W
      •   5.1 Channel Processing
      •   No Dolby Atmos
      •   No Dolby Atmos Height Virtualization
      •   No DTS:X
      •   No IMAX Enhanced
      •   No Auro 3D with Auro-Matic Upmixer
      •   No DSD via HDMI
      •   No HDR10+
      •   No eARC
      •   No 8K Passthrough
      •   1 HDMI Outputs
      •   0 8K Input
      •   Few RCA Line Inputs
      •   No RCA Pre-Outs
      •   No Zones
      •   No Digital Radio
      •   Bluetooth 3․0 + EDR


      And here are some specifications which fall into average criteria and are neither in PROs nor in CONs category:

      AVERAGE

      Denon AVR-X4500H

      Denon AVR-S640H

      •   9.2 Channels
      •   RCA Line Inputs
      •   5 HDMI Inputs

      3. Advantage of Denon AVR-X4500H

      This section shows those features and specifications which are the reason to choose Denon AVR-X4500H over Denon AVR-S640H.

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      Denon AVR-X4500H
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      Denon AVR-X4500H vs Denon AVR-S640H
      More Channels 9.2 vs 5.2
      Higher Power Output 125 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven) vs 75 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven)
      Bi-amp capability assignable vs
      Higher DAC Specs 384 kHz/32 Bit vs 192 kHz/24 Bit
      More Channel Processing 11.2 vs 5.1
      D.D.S.C. HD Digital 32 bit vs
      Alpha Processing AL32 Processing Multichannel vs
      Dolby Atmos up to 7.1.4 vs
      Dolby Surround Upmixer vs
      Dolby Digital EX vs
      DTS:X up to 7.1.4 vs
      DTS Neural:X vs
      DTS Virtual:X vs
      DTS-ES Discrete 6.1, Matrix 6.1 vs
      IMAX Enhanced vs
      Auro 3D with Auro-Matic Upmixer Built-In vs
      DSD via HDMI 2-ch/Multi-ch Input vs
      Jitter Reduction vs
      DTS Dialog Control vs
      Dialog Level Adjustment vs
      Audyssey LFC vs
      Audyssey Sub EQ HT vs
      Independent Subwoofer Outputs vs
      More Advanced Auto Speaker Calibration System Audyssey MultEQ XT32 vs Audyssey MultEQ
      Bass Sync vs
      Enhanced Audio Return Channel (eARC) vs
      Video Signal Upscaling up to 4K 50/60Hz 4:4:4 vs
      Analog To HDMI Upconversion Component**, Composite vs
      isf Certified Calibration Control vs
      More HDMI Inputs 8 (1 front) vs 5
      More HDMI Outputs 3 (2 for MAIN, 1 for ZONE2) vs 1
      More Coaxial Inputs/Outputs 2 vs 1
      More RCA Line Inputs 5 vs 2
      More RCA Pre-Outs 11.2 vs 0.2
      More Composite Video Inputs 3 vs 2
      More Component Video Inputs 2 vs
      More Component Video Outputs 1 vs
      Front A/V Inputs HDMI, USB vs USB
      Speaker A/B assignable vs
      Detachable Power Cord vs
      More Zones 3 vs 1
      RS-232C Interface vs
      +12V Trigger Output 2 vs
      Remote (IR) Input/Output 1 / 1 vs 0 / 0
      On-Screen Display Advanced Graphic User Interface vs Hybrid Graphic User Interface
      More GUI Languages 9 vs 3
      Control4 SDDP vs
      Display 2 lines vs 1 line
      Pre-programmed / Learnable / LCD Display / / vs / /
      Denon Link HD vs
      Analog Tuner FM/AM with RDS vs FM/AM
      More Speaker Terminals 11 vs 5
      More Large Speaker Terminals 11 vs 5
      High Grade Audio Components vs
      Gold plated RCA terminals vs
      Bigger Power Supply 710 W vs 340 W
      Higher Power Output (8 Ω, 20 Hz - 20 kHz, 2 channel driven, FTC) 125 W (0.05% THD) vs 75 W (0.08% THD)
      Higher Power Output (6 Ω, 1 kHz, 2 channel driven, FTC) 165 W (0.7% THD) vs 100 W (0.7% THD)
      Higher Power Output (6 Ω, 1 kHz, 1 channel driven, JEITA) 235 W (10% THD) vs 150 W (10% THD)
      Higher S/N Ratio (Line, IHF-A) 102 dB vs 98 dB

      4. Advantage of Denon AVR-S640H

      This section shows those features and specifications which are the reason to choose Denon AVR-S640H over Denon AVR-X4500H.

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      Denon AVR-S640H
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      Denon AVR-X4500H vs Denon AVR-S640H
      Dolby Pro Logic vs PLII
      DTS Neo vs Neo:6
      Pandora vs
      SiriusXM vs
      Wider AM Frequency Range 522 kHz - 1611 kHz vs 520 kHz - 1710 kHz

      5. Common Strengths and Weaknesses

      We already listed pros and cons of each model. However, you may also find useful to look at their common strengths and weaknesses shown side-by-side.

      STRENGTHS Denon AVR-X4500H Denon AVR-S640H
        Auto Speaker Calibration System with Mic. Audyssey MultEQ XT32 Audyssey MultEQ
        HDR10
        Dolby Vision
        New HDCP Version2.22.2
        Auto Low Latency Mode Pass-through
        Wi-Fi
        Bluetooth SBC SBC
        Works with Amazon Alexa
        HEOS
        USB Input1 Front for USB memory1 Front for USB memory
        Phono Input
        Composite Video Inputs32
        Ethernet
        Analog Tuner FM/AM with RDS FM/AM
        Spotify
        Tidal
      WEAKNESSES Denon AVR-X4500H Denon AVR-S640H
        No Dolby Atmos Height Virtualization
        No HDR10+
        No 8K Passthroughup to 4K 50/60Hz 4:4:4up to 4K 50/60Hz 4:4:4
        Few 8K Inputs
        No Digital Radio
        Old Bluetooth Version3․0 + EDR3․0 + EDR

      6. Amplifier

      Denon AVR-X4500H Denon AVR-S640H

      9 channel Amplifier: Denon AVR-X4500H features 9 channel power amplifier. It is rated at 125 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven) and is able to drive 4 ohm speakers.

      5 channel Amplifier: Denon AVR-S640H features 5 channel power amplifier. It is rated at 75 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven) and is able to drive 4 ohm speakers.


        AMPLIFIER Denon AVR-X4500H Denon AVR-S640H
        Channels9.25.2
        Power Output125 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven)75 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven)
        Discrete Amplification
        THX™ Certification
        Continuous 6 Ω Rated
        Certified 4 Ω Performance
        Mono Block Power Amplifier Construction
        Bi-amp Capability assignable

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        Denon AVR-X4500H
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        7. Speaker Configurations

        Denon AVR-X4500H's and Denon AVR-S640H's amplifiers can be assigned for different speaker configurations.

        • Dolby Atmos Configurations: The following speaker configurations are supported for Dolby Atmos:
        • Denon AVR-X4500H: 5.2.2, 5.2.4, 7.2.2 with internal amplifier and 7.2.4 with addition of external 2 channel amplifier.
        • Denon AVR-S640H: Not supported.
        • DTS:X Configurations: The following speaker configurations are supported for DTS:X:
        • Denon AVR-X4500H: The speaker configurations for DTS:X are the same as for Dolby Atmos - 5.2.2, 5.2.4, 7.2.2 with internal amplifier and 7.2.4 with addition of external 2 channel amplifier.
        • Denon AVR-S640H: Not supported.
        • Configurations without height channels: There are also other speaker configurations available which do not include height channels:
        • Denon AVR-X4500H: 5.2, 7.2 with internal amplifier.
        • Denon AVR-S640H: 5.2 with internal amplifier.
        • Bi-Amp: Denon AVR-X4500H is able to bi-amp up to 2 main channels simultaneously. During bi-amplification two amplifiers are used for one speaker. One amplifier powers the midrange and tweeter section of the speaker and another amplifier powers the low frequency woofers. Each amplifier is less loaded and performs better. In order to use this feature speakers must have 2 pairs of connectors.

        8. Immersive Audio Formats

        Dolby Atmos

        Denon AVR-X4500H supports Dolby Atmos.

        • Dolby Surround Upmixer: Denon AVR-X4500H supports Dolby Surround Upmixer. If the content is not mixed in Dolby Atmos then the Dolby surround upmixer will expand the audio to all channels including ceiling speakers. The upmixer has replaced the Dolby Pro Logic II family with improved upmixing algorithms.

        DTS:X

        Denon AVR-X4500H supports DTS:X.

        • DTS Neural:X: Denon AVR-X4500H supports DTS Neural:X which is an advanced upmixer that can take non DTS:X content and upmix it to the DTS:X speaker layout. It has replaced the DTS Neo family with improved flexibility.
        • DTS Virtual:X: Denon AVR-X4500H supports DTS Virtual:X which bridges the gap between DTS:X codec and the reality of so many consumers' homes, allowing you to enjoy multi-dimensional sound regardless of room size, layout, or speaker configuration. If you have a limited speaker setup you will miss a full immersive potential of your entertainment system. DTS Virtual:X adds height and surround audio effect to your system without adding height speakers. It works with multiple configurations and delivers immersive sound experience out of 5.1 or even 2.1 speaker layouts.
        • DTS Dialog Control: Denon AVR-X4500H supports DTS Dialog Control. This function adjusts the dialog levels during playback of the DTS:X stream. It allows you to separately increase the dialog levels in contrast with the background sound and hear dialog easily even under noisy circumstances.

        Auro-3D

        Denon AVR-X4500H supports Auro-3D.

        • Auro-Matic upmixer: Auro-Matic upmixer takes non Auro-3D sound and upmixes to the current speaker configuration.

        IMAX Enhanced

        Denon AVR-X4500H is IMAX Enhanced certified. To qualify for IMAX Enhanced certification, 4K HDR televisions, projectors, sound bars, a/v receivers, loudspeakers, powered subwoofers and other premium home entertainment devices must meet carefully prescribed performance requirements established by IMAX, DTS and Hollywood's leading experts.

        • What makes an IMAX Enhanced A/V receiver different from an A/V receiver with DTS:X technology? DTS:X technology is commonly found in most multi-channel A/V receivers on the market today. All IMAX Enhanced A/V receivers include DTS:X technology and deliver additional features, such as auto-sensing of IMAX Enhanced content, via IMAX Mode. IMAX Mode indicates that your A/V receiver supports fully immersive IMAX signature sound.
        AUDIO DECODING Denon AVR-X4500H Denon AVR-S640H
        Dolby Atmos up to 7.1.4
        Dolby Atmos Height Virtualization
        Dolby Atmos Music
        Dolby TrueHD
        Dolby Digital Plus
        Dolby Surround Upmixer
        Dolby Pro Logic PLII
        Dolby Digital EX
        Surround EX
        DTS:X up to 7.1.4
        DTS Neural:X
        DTS Virtual:X
        DTS Neo Neo:6
        DTS-HD Master Audio
        DTS-HD High Resolution Audio
        DTS 96/24
        DTS Express
        DTS-ES Discrete 6.1, Matrix 6.1
        IMAX Enhanced
        Auro 3D with Auro-Matic Upmixer Built-In

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        Denon AVR-S640H
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        9. HDMI

        Denon AVR-X4500H comes with 8 HDMI inputs. It has 3 outputs - 2 for MAIN and 1 for ZONE2.

        Denon AVR-S640H comes with 5 HDMI inputs. It has 1 output.

        • 4K/60Hz Passthrough: On both receivers all inputs pass up to 4K 50/60Hz 4:4:4 video signal.
        • 4K Upscaling on Denon AVR-X4500H: It can upscale up to 4K 50/60Hz 4:4:4 from HDMI and analog sources.
        • Analog To HDMI Upconversion: Denon AVR-X4500H supports analog to HDMI Upconversion, so you can input your analog video sources and output them digitally via HDMI. This means that you will need only one HDMI cable to connect to your TV.
        • BT.2020 Color Space: BT.2020 or Rec. 2020 is a color standard which delivers a wider color gamut compared to Rec. 709. It covers approximately 75% of the total visual spectrum while the Rec. 709 covers only 35% (available on both models).
        • HDCP 2.2 Copy Protection: Both receivers are HDCP 2.2 compliant which is a requirement for 4K/HDR copy-protected content transmission.
        • 3D Ready: Both receivers are able to pass 3D video through HDMI.

        HDR (High Dynamic Range)

        Both receivers support HDR10, Dolby Vision and Hybrid Log-Gamma. High dynamic range video has greater dynamic range than standard dynamic range (SDR) video with brighter whites and deeper blacks. The result is greater contrast and more details in dark and bright areas, better color and depth.


        Enhanced Audio Return Channel (eARC)

        Denon AVR-X4500H supports Audio Return Channel (ARC) which allows the compatible TV to send audio signal to the a/v receiver through the same HDMI cable which is used to send audio and video signals to the TV. So one HDMI cable is used to transfer audio signal in both directions. New Enhanced ARC will support uncompressed audio formats such as Dolby Atmos, DTS:X, Dolby TrueHD and DTS HD Master Audio whereas the previous ARC could support only Dolby Digital, Dolby Digital Plus, DTS, DTS HD, and PCM.


        Gaming Features

        Both receivers support Auto Low Latency Mode (ALLM) for lag-free and smooth gaming.



        VIDEO FEATURES Denon AVR-X4500H Denon AVR-S640H
        HDR10
        HDR10+
        Dynamic HDR
        BT.2020 color space
        Dolby Vision
        HLG (Hybrid Log Gamma)
        HDBaseT Compatible
        Enhanced Audio Return Channel (eARC)
        HDCP Version2.22.2
        QMS (Quick Media Switching)
        ALLM (Auto Low Latency Mode)
        VRR (Variable Refresh Rate)
        QFT (Quick Frame transport)
        3-D Ready
        Video Signal Passthroughup to 4K 50/60Hz 4:4:4up to 4K 50/60Hz 4:4:4
        Video Signal Upscaling up to 4K 50/60Hz 4:4:4

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        Denon AVR-X4500H
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        10. Inputs and Outputs

        Audio

        • Phono Input: There is an MM phono input on Denon AVR-X4500H and Denon AVR-S640H with built-in phono stage for connecting the moving magnet cartridge output of the turntable directly to the receiver.
        • Analog Pre-Outs: Denon AVR-X4500H has 11.2 preamplifier outputs which allows you to connect the receiver to the external power amplifier. You may want to use a high quality external amplifier for certain channels, usually for front L/R and center, and use the receiver to power the rest. Also, Denon AVR-X4500H has 11 channel processing but has only 9 channel amplifier, so it needs external amplifier connected to the analog pre-outs in order to reach its maximum speaker configuration.
        • Analog Line Inputs: There are 5 pair of line inputs on Denon AVR-X4500H and 2 pair of line inputs on Denon AVR-S640H for connecting sources with analog outputs.
        • Digital Inputs: 2 optical inputs and 2 coaxial inputs are available on Denon AVR-X4500H and 2 optical inputs and 1 coaxial input are available on Denon AVR-S640H for digital audio connections.
        • Headphone Output: There is a 6.3 mm (1/4") headphone output jack on the front panel of each receiver.

        Video

        • HDMI:
        • Denon AVR-X4500H
          Inputs:           8 (1 front)   Outputs: 3 (2 for MAIN, 1 for ZONE2)
          8K Inputs: 0.
        • Denon AVR-S640H
          Inputs:           5   Outputs: 1
          8K Inputs: 0.
        • Composite Video: Connect you VCR, Laserdisc player and other old video equipment with composite video cables.
        • Denon AVR-X4500H
          Inputs:           3   Outputs: 1.
        • Denon AVR-S640H
          Inputs:           2   Outputs: 1.
        • Component Video: Component video connection gives you the higher quality video compared to the composite video connection. So in case your old DVD player and other equipment do not have an HDMI output but have Component video output use this connection over the composite one. resolution on Component video connectors. resolution on Component video connectors.
        • Denon AVR-X4500H
          Inputs:           2   Outputs: 1.
        • Denon AVR-S640H
          Inputs:           0   Outputs: 0.

        Front A/V Inputs

        • Denon AVR-X4500H: HDMI, USB
        • Denon AVR-S640H: USB

        Denon AVR-X4500H

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        Denon AVR-S640H

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        TERMINALS Denon AVR-X4500H Denon AVR-S640H
        HDMI Inputs8 (1 front)5
        HDMI Outputs3 (2 for MAIN, 1 for ZONE2)1
        8K Inputs
        USB Input1 Front for USB memory1 Front for USB memory
        USB DC Out Port
        Optical Inputs22
        Optical Outputs
        Coaxial Inputs21
        RCA Line Inputs52
        RCA Line Outputs
        XLR Line Inputs
        Phono Input
        Multi-Channel Input
        RCA Pre-Outs11.20.2
        XLR Pre-outs
        Composite Video Inputs32
        Composite Video Outputs11
        S-Video Inputs
        S-Video Outputs
        Component Video Inputs2
        Component Video Outputs1

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        Denon AVR-S640H
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        11. Evaluations

        We evaluated Denon AVR-X4500H and Denon AVR-S640H and gave them scores of 93 and 80 out of 100 recpectively. We also gave separate scores for 7 different categories according to the available features and specifications some of which are listed below. These evaluations are relative and may change each time a new receiver is added to the database.


        Denon AVR-X4500H

        Denon AVR-S640H

        OVERALL
        93
        OVERALL
        80

        Amplifier

        EXCELLENT
        92
        •   9.2 Channels
        •   High Power Output - 125 W
        GOOD
        84
        •   Few Channels - 5.2
        •   Low Power Output - 75 W

        Audio Features

        EXCELLENT
        93
        •   9.2 Channels
        •   No Front Wide Channel Support
        •   11.2 Channel Processing
        •   Dolby Atmos
        •   No Dolby Atmos Height Virtualization
        •   DTS:X
        •   IMAX Enhanced
        •   Auro 3D with Auro-Matic Upmixer
        •   DSD via HDMI
        AVERAGE
        66
        •   Few Channels - 5.2
        •   5.1 Channel Processing
        •   No Dolby Atmos
        •   No Dolby Atmos Height Virtualization
        •   No DTS:X
        •   No IMAX Enhanced
        •   No Auro 3D with Auro-Matic Upmixer
        •   No DSD via HDMI

        Video Features

        EXCELLENT
        96
        •   HDR10
        •   No HDR10+
        •   Dolby Vision
        •   Auto Low Latency Mode Pass-through
        •   No 8K Passthrough
        •   Analog To HDMI Upconversion
        EXCELLENT
        94
        •   HDR10
        •   No HDR10+
        •   Dolby Vision
        •   Auto Low Latency Mode Pass-through
        •   No 8K Passthrough

        Connectivity

        EXCELLENT
        90
        •   eARC
        •   New HDCP Version
        •   Wi-Fi
        •   Bluetooth
        •   Works with Amazon Alexa
        •   HEOS
        •   8 HDMI Inputs
        •   4 HDMI Outputs
        •   0 8K Input
        •   USB Input
        •   RCA Line Inputs
        •   Phono Input
        •   RCA Pre-Outs
        •   Composite Video Inputs
        •   Component Video Inputs
        •   Ethernet
        •   Bluetooth 3․0 + EDR
        GOOD
        82
        •   No eARC
        •   New HDCP Version
        •   Wi-Fi
        •   Bluetooth
        •   Works with Amazon Alexa
        •   HEOS
        •   5 HDMI Inputs
        •   1 HDMI Outputs
        •   0 8K Input
        •   USB Input
        •   Few RCA Line Inputs
        •   Phono Input
        •   No RCA Pre-Outs
        •   Composite Video Inputs
        •   Ethernet
        •   Bluetooth 3․0 + EDR

        Zones

        EXCELLENT
        92
        •   3 Zones
        AVERAGE
        55
        •   No Zones

        Radio

        EXCELLENT
        92
        •   Analog Tuner
        •   No Pandora
        •   Spotify
        •   Tidal
        EXCELLENT
        96
        •   Analog Tuner
        •   Pandora
        •   Spotify
        •   Tidal

        12. Specifications

        GENERAL Denon AVR-X4500H Denon AVR-S640H
        BrandDenonDenon
        ModelAVR-X4500HAVR-S640H
        TypeA/V ReceiverA/V Receiver
        CountryUKUSA
        Release Year20182018
        PredecessorDenon AVR-X4400H
        SuccessorDenon AVC-X4700H Denon AVR-S650H
        AMPLIFIER Denon AVR-X4500H Denon AVR-S640H
        Channels9.25.2
        Power Output125 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven)75 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven)
        Front Wide Channel Support
        Discrete Amplification
        THX™ Certification
        Continuous 6 Ω Rated
        Certified 4 Ω Performance
        Mono Block Power Amplifier Construction
        Bi-amp Capability assignable
        AUDIO FEATURES Denon AVR-X4500H Denon AVR-S640H
        Digital Signal Processing (DSP) EngineFour 300 MHz DSP cores
        DACAKM AK4458VN
        DAC Specs384 kHz/32 Bit192 kHz/24 Bit
        Maximum Channel Processing11.25.1
        D.D.S.C. HD Digital 32 bit
        Alpha Processing AL32 Processing Multichannel
        Air Studios Monitor Certification
        Dolby Atmos up to 7.1.4
        Dolby Atmos Height Virtualization
        Dolby Atmos Music
        Dolby TrueHD
        Dolby Digital Plus
        Dolby Surround Upmixer
        Dolby Pro Logic PLII
        Dolby Digital EX
        Surround EX
        DTS:X up to 7.1.4
        DTS Neural:X
        DTS Virtual:X
        DTS Neo Neo:6
        DTS-HD Master Audio
        DTS-HD High Resolution Audio
        DTS 96/24
        DTS Express
        DTS-ES Discrete 6.1, Matrix 6.1
        IMAX Enhanced
        Auro 3D with Auro-Matic Upmixer Built-In
        PCM 2-ch/Multi-ch Input 2-ch/Multi-ch Input
        Network Audio FormatsMP3, WMA, MPEG-4 AAC, Apple Lossless, WAV, FLAC, DSDMP3, WMA, MPEG-4 AAC, Apple Lossless, WAV, FLAC, DSD
        Music Playback via USBMP3, WMA, AAC, Apple Lossless, WAV, FLAC, DSDMP3, WMA, AAC, Apple Lossless, WAV, FLAC, DSD
        High Resolution Music Playback via USB and/or Network up to 192 kHz up to 192 kHz
        High Resolution Audio Formats via USBApple Lossless, WAV, FLAC, DSDApple Lossless, WAV, FLAC, DSD
        Gapless Playback
        DSD via HDMI 2-ch/Multi-ch Input
        DSD via USB 2-ch Input 2-ch Input
        DSD to PCM Converter
        USB DAC
        Jitter Reduction
        DTS Dialogue Control
        Dialog Enhancement
        Dialog Level Adjustment
        Dialog normalization
        Dialogue Lift
        Compressed Music Enhancer
        High-resolution Music Enhancer
        Audyssey Dynamic EQ
        Audyssey Dynamic Volume
        Audyssey LFC
        Audyssey Sub EQ HT
        Audyssey DSX
        Direct Mode
        Pure Direct Mode
        Independent Subwoofer Outputs
        CALIBRATION Denon AVR-X4500H Denon AVR-S640H
        Auto Speaker Calibration System with Mic. Audyssey MultEQ XT32 Audyssey MultEQ
        Audyssey App Support
        Optimized Bass Redirection
        Bass Sync
        VIDEO FEATURES Denon AVR-X4500H Denon AVR-S640H
        HDR10
        HDR10+
        Dynamic HDR
        BT.2020 color space
        Dolby Vision
        HLG (Hybrid Log Gamma)
        HDBaseT Compatible
        Enhanced Audio Return Channel (eARC)
        HDCP Version2.22.2
        QMS (Quick Media Switching)
        ALLM (Auto Low Latency Mode)
        VRR (Variable Refresh Rate)
        QFT (Quick Frame transport)
        3-D Ready
        Video Signal Passthroughup to 4K 50/60Hz 4:4:4up to 4K 50/60Hz 4:4:4
        Video Signal Upscaling up to 4K 50/60Hz 4:4:4
        Analog To HDMI Upconversion Component**, Composite
        Component Video Upscaling
        Analog to Analog Video conversion
        isf Certified Calibration Control
        CONNECTIVITY Denon AVR-X4500H Denon AVR-S640H
        Wi-Fi
        Bluetooth SBC SBC
        Bluetooth Headphone Transmission
        Works with Amazon Alexa
        Chromecast Built-In
        Works with SonoS
        HEOS
        DTS Play-Fi
        MHL Input
        DLNA 1.5
        AirPlay AirPlay 2 AirPlay 2
        Apple Product Connection iPod, iPhone and iPad iPod, iPhone and iPad
        Remote App Denon 2016 AVR Remote App for iOS and Android devices and Kindle Fire Denon 2016 AVR Remote App for iOS and Android devices and Kindle Fire
        InstaPrevue Input Source Prevue
        TERMINALS Denon AVR-X4500H Denon AVR-S640H
        HDMI Inputs8 (1 front)5
        HDMI Outputs3 (2 for MAIN, 1 for ZONE2)1
        8K Inputs
        USB Input1 Front for USB memory1 Front for USB memory
        USB DC Out Port
        Optical Inputs22
        Optical Outputs
        Coaxial Inputs21
        RCA Line Inputs52
        RCA Line Outputs
        XLR Line Inputs
        Phono Input
        Multi-Channel Input
        RCA Pre-Outs11.20.2
        XLR Pre-outs
        Composite Video Inputs32
        Composite Video Outputs11
        S-Video Inputs
        S-Video Outputs
        Component Video Inputs2
        Component Video Outputs1
        Ethernet
        Ethernet Switch
        PC In
        Front A/V InputsHDMI, USBUSB
        Speaker A/B assignable
        Headphone Out6.3 mm (1/4")6.3 mm (1/4")
        Detachable Power Cord
        ZONES Denon AVR-X4500H Denon AVR-S640H
        Number of Zones31
        Powered Zones 2 and 3
        Zone 2 OutsHDMI, Component, Composite, Pre Out
        Zone 3 OutsPre Out
        RS-232C Interface
        +12V Trigger Output2
        Remote (IR) Input/Output1 / 10 / 0
        MISCELLANEOUS Denon AVR-X4500H Denon AVR-S640H
        On-Screen Display Advanced Graphic User Interface Hybrid Graphic User Interface
        GUI Languages93
        Web Control
        IP Control
        Control4 SDDP
        Display 2 lines 1 line
        Remote ControllerRC-1219RC-1226
        Pre-programmed / Learnable / LCD Display / / / /
        Denon Link HD
        Setup Assistant
        Quick Select plus / Quick Select / /
        RADIO Denon AVR-X4500H Denon AVR-S640H
        Analog Tuner FM/AM with RDS FM/AM
        Digital Radio
        Internet Radio TuneIn TuneIn
        Pandora
        Spotify
        Tidal
        Deezer
        Napster
        SiriusXM
        CONSTRUCTION Denon AVR-X4500H Denon AVR-S640H
        Front PanelMetalnot Metal
        Speaker Terminals115
        Large Speaker Terminals115
        Color-Coded Speaker Terminals
        Transparent High-Grade Speaker Terminals
        High Grade Audio Components
        Gold plated RCA terminals
        POWER Denon AVR-X4500H Denon AVR-S640H
        Power SupplyAC 230 V, 50/60 HzAC 120 V, 60 Hz
        Power Consumption710 W340 W
        No Sound PowerECO On/Off: 65 W/110 W
        Standby Power0.1 W0.1 W
        ECO Mode / Hybrid Standby Function
        Auto Power off
        PHYSICAL Denon AVR-X4500H Denon AVR-S640H
        Dimensions (W x H x D)434 mm x 167 mm x 389 mm (with antenna: 434 mm x 236 mm x 389 mm)
        17 1/8" x 6 5/8" x 15 3/8" (with antenna: 17 1/8" x 9 3/8" x 15 3/8")        		434 mm x 151 mm x 339 mm (with antenna: 434 mm x 215 mm x 339 mm)
        17 1/8" x 6" x 13 3/8" (with antenna: 17 1/8" x 8 1/2" x 13 3/8")
        Weight13.7 kg (30 lbs 3 oz)7.8 kg (17 lbs 3 oz)
        SPECIFICATIONS Denon AVR-X4500H Denon AVR-S640H
        Power Output (8 Ω, 20 Hz - 20 kHz, 2 channel driven, FTC)125 W (0.05% THD)75 W (0.08% THD)
        Power Output (6 Ω, 1 kHz, 2 channel driven, FTC)165 W (0.7% THD)100 W (0.7% THD)
        Maximum Effective Power Output (6 Ω, 1 kHz, 1 channel driven, JEITA or IEC)235 W (10% THD)150 W (10% THD)
        Rated Power Output (6 Ω, 1 kHz, 1 channel driven, IEC)200 W (1% THD)
        Dynamic Power per Channel (4 Ω, Front)190 W x 2-channel
        Dynamic Power per Channel (8 Ω, Front)130 W x 2-channel
        THD (Digital)0.008% (1 kHz, at 0 dB)
        Analog Distortion0.005% (20 Hz-20 kHz, Direct mode)
        Phono Distortion0.03% (1 kHz, 3 V)0.03% (1 kHz, 3 V)
        Input Sensitivity and Impedance (Line)200 mV/47 kΩ200 mV/47 kΩ
        Input Sensitivity and Impedance (Phono MM)2.5 mV2.5 mV
        Rated Lineout Level and Impedance1.2 V
        Rated Output digital2 V (at 0 dB playback)
        S/N Ratio (Line, IHF-A)102 dB98 dB
        S/N Ratio (Phono MM, IHF-A)74 dB74 dB
        S/N Ratio (digital)102 dB
        Dynamic Range (digital)100 dB
        Phono RIAA Deviation±1 dB (20 Hz to 20 kHz)±1 dB (20-20 kHz)
        Frequency Response (Analog In)+1/-3 dB (10 Hz to 100 kHz, Direct mode)+1/-3 dB (10 Hz to 100 kHz, Direct mode)
        DSD Sampling Rates via HDMI2.8 MHz
        DSD Sampling Rates via USB5.6 MHz, 2.8 MHz5.6 MHz, 2.8 MHz
        Video Input Sensitivity/Output Level and Impedance 1 Vp-p/75 Ω (Component Y)
        0.7 Vp-p/75 Ω (Component PB/CB, PR/CR)
        1 Vp-p/75 Ω (Composite)        		1 Vp-p/75 Ω (Composite)
        Video Frequency Response5 Hz to 60 MHz, 0 dB/-3 dB (Component)5 Hz to 10 MHz, 0 dB/-3 dB (Composite)
        Ethernet Standard100BASE-TX100BASE-TX
        Wi-Fi StandardIEEE 802.11 a/b/g/nIEEE 802.11 a/b/g/n
        Wi-Fi Terminal Frequency5 GHz, 2.4 GHz5 GHz, 2.4 GHz
        Bluetooth Version3․0 + EDR3․0 + EDR
        Bluetooth Frequency2.4 GHz2.4 GHz
        USB TerminalUSB2.0 5V, 1 AUSB2.0 5V, 1 A
        FM Frequency87.5 MHz - 108.0 MHz87.5 MHz - 107.9 MHz
        FM 50 dB Quiet Sensitivity (IHF, 1 kHz, 100% MOD.)Mono: 2.8 µV (20.2 dBf)Mono: 2.8 µV (20.2 dBf)
        FM Effective Sensitivity1.2 µV (12.8 dBf)1.2 µV (12.8 dBf)
        FM S/N RatioMono/Stereo: 70 dB/67 dBMono/Stereo: 70 dB/67 dB
        FM Harmonic Distortion (IHF, 1 kHz)Mono/Stereo: 0.7%/1.0%Mono/Stereo: 0.7%/1.0%
        AM Frequency522 kHz - 1611 kHz520 kHz - 1710 kHz
        AM Effective Sensitivity18 µV18 µV
        Warranty3 Years3 Years

        * - 480i/576i and 480p/576p only
        ** - 480i/576i only
        *** - no 1080p/24 upconversion
        **** - 1080p signal is not converted

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