1-on-1 Comparison

Side-by-Side Comparison

Denon AVR-S650H

Denon AVR-S640H

SCORE:
78
SCORE:
78

Highlights

  • 5.2 channels
  • 5.1 channel processing
  • 75 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven)
  • HDR10, Dolby Vision, 4K Passthrough
  • AirPlay 2, HEOS
  • Ethernet, Wi-Fi, Bluetooth
  • USB and Phono inputs

Highlights

  • 5.2 channels
  • 5.1 channel processing
  • 75 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven)
  • HDR10, Dolby Vision, 4K Passthrough
  • AirPlay 2, HEOS
  • Ethernet, Wi-Fi, Bluetooth
  • USB and Phono inputs

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Content

Overview

Here we are comparing Denon AVR-S650H 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. Both receivers have 5 channel and equally powerful amplifiers.


Denon AVR-S650H Denon AVR-S640H

Denon AVR-S650H was introduced in 2019. 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.

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 the a/v receiver and gave 78 overall score out of 100. Our ranking system is based on the amplifier specifications, audio and video features, connectivity, multizone capabilities, radio and many other details.

We evaluated the a/v receiver and gave 78 overall score out of 100. Our ranking system is based on the amplifier specifications, audio and video features, connectivity, multizone capabilities, radio and many other details.

AMPLIFIER
85
VIDEO FEATURES
94
AUDIO FEATURES
64
CONNECTIVITY
84
MULTIZONE
55
MISCELLANEOUS
54
RADIO
96
OVERALL
78

AMPLIFIER
84
VIDEO FEATURES
94
AUDIO FEATURES
66
CONNECTIVITY
81
MULTIZONE
55
MISCELLANEOUS
54
RADIO
96
OVERALL
78

Advantage of Denon AVR-S650H

This section shows those features and specifications which are the reason to choose Denon AVR-S650H over Denon AVR-S640H.

In video department only Denon AVR-S650H supports HDCP 2.3 copy protection.

Denon AVR-S650H vs Denon AVR-S640H
Enhanced Audio Return Channel (eARC) vs
Newer HDCP Version 2.3 vs 2.2
Bluetooth Headphone Transmission vs

Advantage of Denon AVR-S640H

This section shows those features and specifications which are the reason to choose Denon AVR-S640H over Denon AVR-S650H.

Denon AVR-S650H vs Denon AVR-S640H
Dolby Pro Logic PLII vs PLII

Common Strengths and Weaknesses

Here we list common strengths and weaknesses of both receivers.

STRENGTHS
  Auto Speaker Calibration System with Mic.
  New HDCP Version
  HDR10
  Dolby Vision
  Auto Low Latency Mode Pass-through
  4K or 8K Video Passthrough
  HEOS
  Works with Amazon Alexa
  Ethernet
  Wi-Fi
  Bluetooth
  USB Input
  Many Optical Inputs
  Composite Video Inputs
  Zones
  Analog Tuner
  Pandora
  Spotify
  Tidal
WEAKNESSES
  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 4K or 8K Video Upscaling
  No Chromecast Built-In
  Few HDMI Outputs
  Few 8K Inputs
  Few RCA Line Inputs
  No RCA Pre-Outs
  Old Bluetooth Version

Audio Section

Amplifier

Denon AVR-S650H Denon AVR-S640H

5 channel Amplifier: Denon AVR-S650H 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.

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.

    Speaker Configurations

    Denon AVR-S650H's and Denon AVR-S640H's amplifiers can be assigned for different speaker configurations.

    • Configurations: Available configurations are:
    • Denon AVR-S650H: 5.2 with internal amplifier.
    • Denon AVR-S640H: 5.2 with internal amplifier.
    • Enhanced Audio Return Channel (eARC)

      Denon AVR-S650H supports Audio Return Channel (ARC) feature 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.



      Sound Processing

      • Audyssey: Both receivers come with Audyssey Dynamic EQ and Dynamic Volume.
      • Dynamic EQ: selects the best possible frequency response and surround volume levels moment-by-moment. This ensures that the bass response, tonal balance and surround impression remain constant despite changes in volume. This is the first technology that carefully combines information from incoming source levels with actual output sound levels in the room, a pre-requisite for delivering a dynamic volume solution.
      • Dynamic Volume: Your Listening experience can be greatly diminished when there are significant shifts in volume between television programs, commercials and within the program material itself. When this happens you must constantly adjust the volume to maintain your desired listening level. Audyssey Dynamic Volume monitors the volume of program material moment-by-moment and automatically adjusts it, maintaining the desired listening level for all content while optimizing the dynamic range to preserve impact.
      • Compressed Music Enhancer: Denon AVR-S650H and Denon AVR-S640H feature Compressed Music Enhancer which enhances the quality of the music files with lossy compression.

      Room Calibration

      Denon AVR-S650H and Denon AVR-S640H come with Audyssey MultEQ room correction system.

      • Audyssey Room Calibration: Audyssey is an acoustic measurement technology which automatically restores the acoustic distortion caused by the acoustic behaviour of a room with only a push on a button. Audyssey equalization provides an clear, accurate, natural sound with voices and dialog that become focused and intelligible, restoring the musical balance. Musical instruments and sound effects become precisely localized and the surround soundstage is made seamless and enveloping.

    Video Section

    HDMI

    Denon AVR-S650H and Denon AVR-S640H come 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.
    • 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 Copy Protection: Denon AVR-S650H is HDCP 2.3 and Denon AVR-S640H is 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.

    • HDR10: HDR10 uses the wide-gamut Rec. 2020 color space. It sends static metadata via video stream to the TV which calibrates its screen brightness and color according to that. HDR10 supports 10-bit color which corresponds to 1024 shades of the primary RGB colors. It is technically limited to a maximum of 10,000 nits peak brightness, however common HDR10 contents are mastered with peak brightness from 1,000 to 4,000 nits.
    • Dolby Vision: Dolby Vision is a set of technologies developed by Dolby Laboratories for high dynamic range (HDR) video. It covers content creation, distribution, and playback. Like HDR10+, it includes dynamic metadata that are used to adjust and optimize each frame of the HDR video to the consumer display's capabilities in a way specified by the content creator. Dolby Vision allows for a maximum resolution of 8K up to 12-bit color depth, maximum peak brightness of 10,000 nits and a color gamut up to Rec. 2020. It uses Dolby's proprietary dynamic metadata defined in SMPTE ST 2094-10.
    • Hybrid Log-Gamma (HLG): The Hybrid Log-Gamma (HLG) is a transfer function developed mainly for HDR live video feed and over-the-air broadcasts. It is an HDR format that uses BT.2020 color primaries and a bitdepth of 10-bit. It is backward compatible with the transfer function of SDR and is designed to be better-suited for television broadcasting, where the metadata required for other HDR formats is not backward compatible with non-HDR displays. HLG defines a non-linear optical-electro transfer function, in which the lower half of the signal values use a gamma curve and the upper half of the signal values use a logarithmic curve.

    Gaming Features

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

    • Auto Low Latency Mode (ALLM): Auto Low Latency Mode enables the ideal latency setting to automatically be set allowing for smooth, lag-free and uninterrupted viewing and interactivity. When the receiver detects a gaming signal it will enter ALLM. The signal will also be sent to the TV causing it to automatically switch to a low-latency, low-lag mode for gaming. Some functions will not be available on the receiver and TV during ALLM.

    Inputs and Outputs

    Audio

    • Analog Line Inputs: There are 2 pair of line inputs on both receivers for connecting sources with analog outputs.
    • Digital Inputs and Outputs: 1 optical input, 2 optical outputs and 1 coaxial input are available for digital audio connections on both receivers.
    • Headphone Output: There is a 6.3 mm (1/4") headphone output jack on the front panel of each receiver.

    Video

    • HDMI:
    • Denon AVR-S650H
      Inputs:
      5   Outputs: 1
      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-S650H
      Inputs:
      2   Outputs: 1.
    • Denon AVR-S640H
      Inputs:
      2   Outputs: 1.

    Front A/V Inputs

    • Denon AVR-S650H: USB
    • Denon AVR-S640H: USB

    Denon AVR-S650H

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    Denon AVR-S640H

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    Specifications

    And in the end let us list all the available specifications of the receivers side-by-side.

    BASICS Denon AVR-S650H Denon AVR-S640H
    BrandDenonDenon
    ModelAVR-S650HAVR-S640H
    TypeA/V ReceiverA/V Receiver
    CountryUSAUSA
    Release Year20192018
    AMPLIFIER Denon AVR-S650H Denon AVR-S640H
    Channels5.25.2
    Front Wide Channel Support
    Discrete Amplification
    THX™ Certification
    Continuous 6 Ω Rated
    Certified 4 Ω Performance
    Mono Block Power Amplifier Construction
    Bi-amp Capability
    AUDIO Denon AVR-S650H Denon AVR-S640H
    DAC Specs192 kHz/24 Bit
    Maximum Channel Processing5.15.1
    D.D.S.C. HD Digital
    Alpha Processing
    Air Studios Monitor Certification
    Dolby Atmos
    Dolby Atmos Height Virtualization
    Dolby Atmos Music
    Dolby TrueHD
    Dolby Digital Plus
    Dolby Surround Upmixer
    Dolby Pro Logic PLII PLII
    Dolby Digital EX
    Surround EX
    DTS:X
    DTS Neural:X
    DTS Virtual:X
    DTS Neo Neo:6 Neo:6
    DTS-HD Master Audio
    DTS-HD High Resolution Audio
    DTS 96/24
    DTS Express
    DTS-ES
    IMAX Enhanced
    Auro 3D with Auro-Matic Upmixer
    PCM 2-ch/Multi-ch Input 2-ch/Multi-ch Input
    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
    DSD via USB 2-ch Input 2-ch Input
    DSD to PCM Converter
    USB DAC
    Jitter Reduction
    DTS Dialog 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-S650H Denon AVR-S640H
    Auto Speaker Calibration System with Mic. Audyssey MultEQ Audyssey MultEQ
    Optimized Bass Redirection
    Bass Sync
    VIDEO Denon AVR-S650H Denon AVR-S640H
    Enhanced ARC
    HDCP Version2.32.2
    HDR10
    HDR10+
    Dynamic HDR
    Dolby Vision
    HLG (Hybrid Log Gamma)
    BT.2020 color space
    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
    Analog To HDMI Upconversion
    Component Video Upscaling
    Analog to Analog Video conversion
    isf Certified Calibration Control
    CONNECTIVITY Denon AVR-S650H Denon AVR-S640H
    MHL Input
    FireConnect
    FlareConnect
    HEOS
    Chromecast Built-In
    DTS Play-Fi
    Works with Amazon Alexa
    Google assistant
    Apple Siri
    Works with SONOS
    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
    Ethernet
    Ethernet Switch
    Wi-Fi
    Bluetooth SBC SBC
    Bluetooth Headphone Transmission
    HDBaseT Compatible
    HDMI Inputs55
    HDMI Outputs11
    8K Inputs
    USB Input1 Front for USB memory1 Front for USB memory
    USB DC Out Port
    RCA Line Input22
    RCA Line Output
    XLR Line Inputs
    Phono Input
    Optical Inputs22
    Optical Outputs
    Coaxial Inputs11
    Composite Video Input22
    Composite Video Output11
    S-Video Input
    S-Video Output
    Component Video Input
    Component Video Output
    PC In
    Multi-Channel Input
    RCA Pre-Outs0.20.2
    XLR Pre-outs
    Front A/V InputsUSBUSB
    Speaker A/B
    Headphone Out6.3 mm (1/4")6.3 mm (1/4")
    ZONES Denon AVR-S650H Denon AVR-S640H
    Zones11
    RS-232C Interface
    +12V Trigger Output
    Remote (IR) Input/Output0 / 00 / 0
    MISC Denon AVR-S650H Denon AVR-S640H
    On-Screen Display Hybrid Graphic User Interface Hybrid Graphic User Interface
    GUI Languages33
    Web Browser Control
    IP Control for CI
    Control4 SDDP
    Display 1 line 1 line
    Remote ControllerRC-1226RC-1226
    Pre-programmed / Learnable / LCD Display / / / /
    Detachable Power Cord
    Denon Link HD
    Setup Assistant
    Quick Select plus / Quick Select / /
    RADIO Denon AVR-S650H Denon AVR-S640H
    Analog Tuner FM/AM FM/AM
    Digital Radio
    Internet Radio TuneIn TuneIn
    Pandora
    Spotify
    Tidal
    Deezer
    Napster
    SiriusXM Internet Radio
    CONSTRUCTION Denon AVR-S650H Denon AVR-S640H
    Front Panelnot Metalnot Metal
    Speaker Terminals55
    Large Speaker Terminals55
    Color-Coded Speaker Terminals
    Transparent High-Grade Speaker Terminals
    High Grade Audio Components
    Gold plated RCA terminals
    POWER Denon AVR-S650H Denon AVR-S640H
    Power SupplyAC 120 V, 60 HzAC 120 V, 60 Hz
    Power Consumption340 W340 W
    No Sound PowerECO On/Off: 29 W/39 W
    Standby Power0.1 W0.1 W
    GENERAL Denon AVR-S650H Denon AVR-S640H
    ECO Mode / Hybrid Standby Function
    Auto Power off
    Dimensions (W x H x D)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")
    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")
    Weight7.8 kg (17 lbs 3 oz)7.8 kg (17 lbs 3 oz)
    Warranty3 Years3 Years
    SPECS Denon AVR-S650H Denon AVR-S640H
    Power Output (8 Ω, 20 Hz - 20 kHz, 275 W (0.08% THD)75 W (0.08% THD)
    Power Output (6 Ω, 1 kHz, 2100 W (0.7% THD)100 W (0.7% THD)
    Maximum Effective Power Output (6 Ω, 1 kHz, 1 channel driven, JEITA)150 W (10% THD)150 W (10% THD)
    Rated Power Output (6 Ω, 1 kHz, 1 channel driven, IEC)135 W (1% THD)
    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
    S/N Ratio (Line, IHF-A)98 dB98 dB
    S/N Ratio (Phono MM, IHF-A)74 dB74 dB
    Phono RIAA Deviation±1 dB (20-20 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 USB5.6 MHz, 2.8 MHz5.6 MHz, 2.8 MHz
    Video Input Sensitivity/Output Level and Impedance1 Vp-p/75 Ω (Composite)1 Vp-p/75 Ω (Composite)
    Video Frequency Response5 Hz to 10 MHz, 0 dB/-3 dB (Composite)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 - 107.9 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 Frequency520 kHz - 1710 kHz520 kHz - 1710 kHz
    AM Effective Sensitivity18 µV18 µV

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

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