1-on-1 Comparison

Side-by-Side Comparison

Denon AVR-S660H

Yamaha RX-V4A

SCORE:
80
SCORE:
78

Highlights

  • 5.2 channels
  • 5.1 channel processing
  • 75 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven)
  • HDMI 2.1
  • HDR10, HDR10+, Dolby Vision, 8K Upscaling, 8K Passthrough
  • AirPlay 2, DLNA, HEOS
  • Ethernet, Wi-Fi, Bluetooth
  • USB and Phono inputs

Highlights

  • 5.2 channels
  • 5.1 channel processing
  • 80 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven)
  • HDMI 2.1
  • HDR10, HDR10+, Dolby Vision, 4K Upscaling, 8K Passthrough
  • AirPlay 2, MusicCast
  • Ethernet, Wi-Fi, Bluetooth
  • USB input

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Content

Overview

Here we are comparing Denon AVR-S660H to Yamaha RX-V4A 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 amplifiers with Denon AVR-S660H's being less powerful.


Denon AVR-S660H Yamaha RX-V4A

Denon AVR-S660H was introduced in 2021. 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 8K/60Hz and 4K/120Hz and upscales from 1080p and 4K up to 8K 50/60Hz and 4K 50/60Hz video signal.

Yamaha RX-V4A was introduced in 2020. It is equipped with 5 channel amplifier with 80 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 8K/60Hz and 4K/120Hz and upscales up to 4K 60p 4:4:4 video signal.

We evaluated the a/v receiver and gave 80 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
99
AUDIO FEATURES
64
CONNECTIVITY
85
MULTIZONE
55
MISCELLANEOUS
54
RADIO
96
OVERALL
80

AMPLIFIER
78
VIDEO FEATURES
99
AUDIO FEATURES
69
CONNECTIVITY
82
MULTIZONE
55
MISCELLANEOUS
47
RADIO
97
OVERALL
78

Advantage of Denon AVR-S660H

This section shows those features and specifications which are the reason to choose Denon AVR-S660H over Yamaha RX-V4A.

Denon AVR-S660H has bigger power supply.

Denon AVR-S660H vs Yamaha RX-V4A
Certified 4 Ω Performance vs
DTS Express vs
Dialog Normalization vs
Audyssey Dynamic EQ vs
Audyssey Dynamic Volume vs
Dynamic HDR vs
Video Signal Upscaling from 1080p and 4K up to 8K 50/60Hz and 4K 50/60Hz vs up to 4K 60p 4:4:4
More HDMI Inputs 6 vs 4
More Optical Inputs 2 vs 1
More Optical Outputs vs
More Composite Video Inputs 2 vs
More Composite Video Outputs 1 vs
Web Control vs
Color-Coded Speaker Terminals vs
Bigger Power Supply 340 W vs 260 W
Longer Warranty 3 Years vs 2 Years
Higher Power Output (6 Ω, 1 kHz, 1 channel driven, JEITA) 150 W (10% THD) vs 145 W (10% THD)
Wider AM Frequency Range 520 kHz - 1710 kHz vs 530 kHz - 1710 kHz

Advantage of Yamaha RX-V4A

This section shows those features and specifications which are the reason to choose Yamaha RX-V4A over Denon AVR-S660H.

Yamaha RX-V4A has more power per channel, higher signal to noise ratio and higher DSD sampling rate via USB. It supports DSD streaming via HDMI.

Denon AVR-S660H vs Yamaha RX-V4A
Bi-amp capability vs
Dolby Pro Logic PLII vs PLII
Music Playback via USB MP3, WMA, AAC, Apple Lossless, WAV, FLAC, DSD vs MP3, WMA, MPEG-4 AAC, Apple Lossless, WAV, FLAC, AIFF, DSD
Higher Resolution Music Playback via USB up to 192 kHz vs up to 192 kHz/32 Bit
High Resolution Audio Formats via USB Apple Lossless, WAV, FLAC, DSD vs Apple Lossless, WAV, FLAC, AIFF, DSD
DSD via HDMI vs 2-ch/Multi-ch Input
Dialog Level Adjustment vs
More 8K Inputs 3 vs 4
More RCA Line Inputs 2 vs 3
Higher Power Output (8 Ω, 20 Hz - 20 kHz, 2 channel driven, FTC) 75 W (0.08% THD) vs 80 W (0.06% THD)
Higher S/N Ratio (Line, IHF-A) 98 dB vs 110 dB
Higher DSD Sampling Rate via USB 5.6 MHz, 2.8 MHz vs 11.2 MHz, 5.6 MHz, 2.8 MHz
Lower FM Harmonic Distortion (IHF, 1 kHz) Mono/Stereo: 0.7%/1.0% vs Mono/Stereo: 0.5%/0.6%

Common Strengths and Weaknesses

Here we list common strengths and weaknesses of both receivers.

STRENGTHS
  Auto Speaker Calibration System with Mic.
  HDMI 2.1
  eARC
  New HDCP Version
  HDR10
  HDR10+
  Dolby Vision
  Auto Low Latency Mode Pass-through
  VRR
  QFT
  4K or 8K Video Passthrough
  4K or 8K Signal Upscaling
  Works with Amazon Alexa
  Google assistant
  Ethernet
  Wi-Fi
  Bluetooth
  Many 8K Inputs
  USB Input
  Zones
  Analog Tuner
  Pandora
  Spotify
  Tidal
  New Bluetooth Version
WEAKNESSES
  No Front Wide Channel Support
  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 Chromecast Built-In
  Few HDMI Outputs
  Few RCA Line Inputs
  No RCA Pre-Outs

Audio Section

Amplifier

Denon AVR-S660H Yamaha RX-V4A

5 channel Amplifier: Denon AVR-S660H 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: Yamaha RX-V4A features 5 channel power amplifier. It is rated at 80 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven).

    Speaker Configurations

    Denon AVR-S660H's and Yamaha RX-V4A's amplifiers can be assigned for different speaker configurations.

    • Configurations: Available configurations are:
    • Denon AVR-S660H: 5.2 with internal amplifier.
    • Yamaha RX-V4A: 5.2 with internal amplifier.
    • Bi-Amp: Yamaha RX-V4A 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.

    • Enhanced Audio Return Channel (eARC)

      Denon AVR-S660H and Yamaha RX-V4A support 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: Denon AVR-S660H comes 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-S660H and Yamaha RX-V4A feature Compressed Music Enhancer which enhances the quality of the music files with lossy compression.

      Room Calibration

      Denon AVR-S660H comes with Audyssey MultEQ and Yamaha RX-V4A comes with YPAO 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.
      • YPAO: The Yamaha Parametric room Acoustic Optimizer (YPAO) function detects speaker connections, measures the distances from them to your listening position(s), and then automatically optimizes the speaker settings, such as volume balance and acoustic parameters, to suit your room.

    Video Section

    HDMI 2.1

    Denon AVR-S660H comes with 3 HDMI 2.1 inputs with 8K support and 3 inputs with 4K support. It has 1 output.

    Yamaha RX-V4A comes with 4 HDMI 2.1 inputs with 8K support. It has 1 output.

    • 8K/60Hz and 4K/120Hz Passthrough on Denon AVR-S660H: 3 out of 6 inputs pass up to 8K 50/60Hz (YCbCr 4:2:0/8-bit) and 4K 100/120Hz (RGB/YCbCr 4:4:4/8, 10-bit and YCbCr 4:2:2/12-bit) and the rest of the inputs pass up to 4K 50/60Hz 4:4:4 video signal.
      8K/60Hz and 4K/120Hz Passthrough on Yamaha RX-V4A: All inputs pass up to 8K 50/60Hz and 4K 100/120Hz 4:4:4 video signal.
    • 8K Upscaling on Denon AVR-S660H: It can upscale from 1080p and 4K up to 8K 50/60Hz and 4K 50/60Hz from HDMI sources.
      4K Upscaling on Yamaha RX-V4A: It can upscale up to 4K 60p 4:4:4 from HDMI sources.
    • 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 2.3 Copy Protection: Both receivers are HDCP 2.3 compliant which is a requirement for 4K/HDR copy-protected content transmission.
    • Quick Media Switching (QMS): With HDMI 2.1a, Quick Media Switching for movies and video uses the HDMI VRR mechanism to eliminate the blackout period when an HDMI Source device switches its video mode. As long as the resolution remains the same and only the frame rate changes, QMS will instantly switch between frame rates. QMS eliminates A/V blackouts by using VRR technology to change frame rates, allowing instant changes from 24Hz to 60Hz frame rate, and anywhere in-between. The viewer never sees blank screens and gets a seamless experience (available on both models).
    • 3D Ready: Both receivers are able to pass 3D video through HDMI.

    HDR (High Dynamic Range)

    Denon AVR-S660H supports HDR10, HDR10+, Dolby Vision, Dynamic HDR and Hybrid Log-Gamma.

    Yamaha RX-V4A supports HDR10, 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.
    • HDR10+: HDR10+ is an HDR video technology that adds dynamic metadata to HDR10 source files. The dynamic metadata are used to adjust brightness levels on a scene-by-scene or even frame-by-frame basis. HDR10+ supports maximum of 10,000 nits peak brightness and 10-bit or more (up to 16-bit) color bit depth. It uses Samsung's dynamic metadata defined in SMPTE ST 2094-40.
    • 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.
    • Dynamic HDR: Dynamic HDR enables a noticeable progression in overall video image quality from SDR to static HDR, and now static HDR to dynamic HDR. Dynamic HDR support ensures every moment of a video is displayed at its ideal values for depth, detail, brightness, contrast, and wider color gamuts - on a scene-by-scene or even a frame-by-frame basis. HDR-enhanced content is available for movies, videos, TV shows, video and PC games and VR.
    • 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), Variable Refresh Rate (VRR) and Quick Frame Transport (QFT) 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.
    • Variable Refresh Rate (VRR): VRR enables a gaming source such as a console or computer to deliver video frames as fast as it can, which in many cases is slower than the normal static refresh rate. It allows the TV to adapt to certain frame rate which reduces or eliminates lag, judder and frame tearing for more fluid and better detailed gameplay.
    • Quick Frame Transport (QFT): QFT reduces latency for smoother no-lag gaming, and real-time interactive virtual reality. It transports each frame at a higher rate to decrease display latency, which is the amount of time between a frame being ready for transport in the GPU and that frame being completely displayed.

    Inputs and Outputs

    Audio

    • Analog Line Inputs: There are 2 pair of line inputs on Denon AVR-S660H and 3 pair of line inputs on Yamaha RX-V4A for connecting sources with analog outputs.
    • Digital Inputs and Outputs: 1 optical input, 2 optical outputs and 1 coaxial input are available on Denon AVR-S660H and 0 optical input, 1 optical output and 1 coaxial input are available on Yamaha RX-V4A 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-S660H
      Inputs:
      6   Outputs: 1
      8K Inputs: 3.
    • Yamaha RX-V4A
      Inputs:
      4   Outputs: 1
      8K Inputs: 4.
    • Composite Video: Connect you VCR, Laserdisc player and other old video equipment with composite video cables.
    • Denon AVR-S660H
      Inputs:
      2   Outputs: 1.
    • Yamaha RX-V4A
      Inputs:
      0   Outputs: 0.

    Front A/V Inputs

    • Denon AVR-S660H: USB
    • Yamaha RX-V4A: USB

    Denon AVR-S660H

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    Yamaha RX-V4A

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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-S660H Yamaha RX-V4A
    BrandDenonYamaha
    ModelAVR-S660HRX-V4A
    TypeA/V ReceiverA/V Receiver
    CountryUSAUSA
    Release Year20212020
    AMPLIFIER Denon AVR-S660H Yamaha RX-V4A
    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-S660H Yamaha RX-V4A
    Surround:AI™
    DACBurr-Brown PCM5101A
    DAC Specs384 kHz/32 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, MPEG-4 AAC, Apple Lossless, WAV, FLAC, AIFF, DSD
    High Resolution Music Playback via USB and/or Network up to 192 kHz up to 192 kHz/32 Bit
    High Resolution Audio Formats via USBApple Lossless, WAV, FLAC, DSDApple Lossless, WAV, FLAC, AIFF, 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 Dialog Control
    Dialog Enhancement
    Dialog Level Adjustment
    Dialog Normalization
    Dialogue Lift
    Compressed Music Enhancer
    High-resolution Music Enhancer
    Adaptive DRC (Dynamic Range Control)
    Initial Volume & Maximum Volume Setting
    Audyssey Dynamic EQ
    Audyssey Dynamic Volume
    Audyssey LFC
    Audyssey Sub EQ HT
    Audyssey DSX
    Direct Mode
    Straight Decoding Mode
    Pure Direct Mode
    CINEMA DSP
    DSP Programs17
    SILENT CINEMA / Virtual CINEMA DSP
    Virtual Speakers
    Independent Subwoofer Outputs
    CALIBRATION Denon AVR-S660H Yamaha RX-V4A
    Auto Speaker Calibration System with Mic. Audyssey MultEQ YPAO sound optimization
    YPAO Volume
    Optimized Bass Redirection
    Bass Sync
    VIDEO Denon AVR-S660H Yamaha RX-V4A
    HDMI Version2.12.1
    Enhanced ARC
    HDCP Version2.32.3
    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)
    DSC (Display Stream Compression)
    3-D Ready
    Video Signal Passthroughup to 8K 50/60Hz (YCbCr 4:2:0/8-bit) and 4K 100/120Hz (RGB/YCbCr 4:4:4/8, 10-bit and YCbCr 4:2:2/12-bit)up to 8K 50/60Hz and 4K 100/120Hz 4:4:4
    Video Signal Upscaling from 1080p and 4K up to 8K 50/60Hz and 4K 50/60Hz up to 4K 60p 4:4:4
    Analog To HDMI Upconversion
    Component Video Upscaling
    Analog to Analog Video conversion
    isf Certified Calibration Control
    CONNECTIVITY Denon AVR-S660H Yamaha RX-V4A
    MHL Input
    DLNA 1.5
    FireConnect
    FlareConnect
    MusicCast
    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 (iPhone® / iPad® / Android™ phone / tablet)
    InstaPrevue Input Source Prevue
    Ethernet
    Ethernet Switch
    Wi-Fi
    Bluetooth SBC SBC, AAC
    Bluetooth Headphone Transmission
    HDBaseT Compatible
    HDMI Inputs64
    HDMI Outputs11
    8K Inputs34
    USB Input1 Front for USB memoryUSB memory, Portable Audio Player
    USB DC Out Port
    RCA Line Input23
    RCA Line Output
    XLR Line Inputs
    Phono Input
    Optical Inputs21
    Optical Outputs
    Coaxial Inputs11
    Composite Video Input2
    Composite Video Output1
    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-S660H Yamaha RX-V4A
    Zones11
    Zone B Video Output
    RS-232C Interface
    +12V Trigger Output
    Remote (IR) Input/Output0 / 00 / 0
    Party Mode
    MISC Denon AVR-S660H Yamaha RX-V4A
    On-Screen Display Hybrid Graphic User InterfaceGraphical User Interface
    GUI Languages3
    SCENESCENE (4 sets)
    Web Browser Control
    IP Control for CI
    Control4 SDDP
    PreAmp Mode
    Display 1 line
    Remote ControllerRC-1243
    Pre-programmed / Learnable / LCD Display / /
    Detachable Power Cord
    dockport
    Denon Link HD
    Setup Assistant
    Quick Select plus / Quick Select /
    RADIO Denon AVR-S660H Yamaha RX-V4A
    Analog Tuner FM/AM FM/AM
    Presets40
    Digital Radio
    Internet Radio TuneIn
    Pandora
    Spotify
    Tidal
    Deezer
    Napster
    SiriusXM Internet Radio
    CONSTRUCTION Denon AVR-S660H Yamaha RX-V4A
    Front Panelnot Metal
    A.R.T. Wedge
    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-S660H Yamaha RX-V4A
    Power SupplyAC 120 V, 60 HzAC 120 V, 60 Hz
    Power Consumption340 W260 W
    No Sound PowerECO On/Off: 29 W/39 W
    Standby Power0.1 W0.1 W
    GENERAL Denon AVR-S660H Yamaha RX-V4A
    ECO Mode / Hybrid Standby Function
    Auto Power Standby
    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")
    435 mm x 171 mm x 377 mm (with antenna: 435 mm x 245 mm x 377 mm)
    17-1/8" x 6-3/4" x 14-7/8" (with antenna up: 17-1/8" x 9-5/8" x 14-7/8")
    Dimensions of Package (W x H x D)523 mm x 232 mm x 435 mm
    20.6"e; x 9.1"e; x 17.1"e;
    Weight7.8 kg (17 lbs 3 oz)8.8 kg (19.4 lbs)
    Weight of Package9.7 kg (21.4 lbs)
    Warranty3 Years2 Years
    SPECS Denon AVR-S660H Yamaha RX-V4A
    Power Output (8 Ω, 20 Hz - 20 kHz, 275 W (0.08% THD)80 W (0.06% THD)
    Power Output (8 Ω, 1 kHz, 295 W (0.9% THD)
    Rated Power Output (8 Ω, 1 kHz, 1 channel Driven)115 W (0.9% THD)
    Maximum Effective Output Power (8 Ω, 1 kHz, 1 channel Driven, JEITA)140 W (10% THD)
    Power Output (6 Ω, 1 kHz, 2100 W (0.7% THD)
    Maximum Effective Power Output (6 Ω, 1 kHz, 1 channel driven, JEITA)150 W (10% THD)145 W (10% THD)
    Rated Power Output (6 Ω, 1 kHz, 1 channel driven, IEC)135 W (1% THD)
    THD0.04% (AUDIO 3 etc. to Front, Pure Direct, 20 Hz - 20 kHz, 40 W, 8 Ω)
    Phono Distortion0.03% (1 kHz, 3 V)
    Damping Factor100 (Front, 1 kHz, 8 Ω)
    Input Sensitivity and Impedance (Line)200 mV/47 kΩ200 mV/47 kΩ
    Input Sensitivity and Impedance (Phono MM)2.5 mV
    Maximum Input Sensitivity (Line)2.4 V (1 kHz, 0.5% THD)
    Rated Preout Level and Impedance1.0 V/470Ω (Subwoofer)
    S/N Ratio (Line, IHF-A)98 dB110 dB
    S/N Ratio (Phono MM, IHF-A)74 dB
    Phono RIAA Deviation±1 dB (20-20 kHz)
    Frequency Response (Analog In)+1/-3 dB (10 Hz to 100 kHz, Direct mode)+0/-3 dB (AUDIO 3 etc. to Front, Pure Direct, 10 Hz to 100 kHz)
    Residual Noise (IHF-A Network)150 µV (Speaker Out)
    Channel Separation at 1 kHz/10 kHz (LINE)70 dB/50 dB
    DSD Sampling Rates via HDMI2.8 MHz
    DSD Sampling Rates via USB5.6 MHz, 2.8 MHz11.2 MHz, 5.6 MHz, 2.8 MHz
    Video Input Sensitivity/Output Level and Impedance1 Vp-p/75 Ω (Composite)
    Video Frequency Response5 Hz to 10 MHz, 0 dB/-3 dB (Composite)
    Ethernet Standard100BASE-TX10BASE-T/100BASE-TX
    Wi-Fi StandardIEEE 802.11 a/b/g/n/acIEEE 802.11 a/b/g/n/ac
    Wi-Fi Terminal Frequency5 GHz, 2.4 GHz2.4 GHz, 5 GHz
    Bluetooth Version4․24․2
    Bluetooth Frequency2.4 GHz2.4 GHz
    USB TerminalUSB2.0 5V, 1 AUSB2.0 5 V, 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: 3 µV (20.8 dBf)
    FM Effective Sensitivity1.2 µV (12.8 dBf)
    FM S/N RatioMono/Stereo: 70 dB/67 dBMono/Stereo: 69 dB/68 dB
    FM Harmonic Distortion (IHF, 1 kHz)Mono/Stereo: 0.7%/1.0%Mono/Stereo: 0.5%/0.6%
    AM Frequency520 kHz - 1710 kHz530 kHz - 1710 kHz
    AM Effective Sensitivity18 µV

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

    Amazon Affiliate Disclosure

    ZKelectronics is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for website owners to earn advertising fees by advertising and linking to Amazon (.com, .co.uk, .ca, etc) and any other websites that may be affiliated with Amazon Service LLC Associates Program.