Yamaha Aventage RX-A660

    Highlights

    • 7.2 Channels
    • 7.1 Channel Processing
    • 80 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven)
    • Dolby Atmos, DTS:X
    • HDR10
    • 4K/60Hz Passthrough
    • Wi-Fi, Bluetooth, Ethernet

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

    1. Overview

    Yamaha Aventage RX-A660 was introduced in 2016. It is equipped with 7 channel amplifier with 80 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven) power per channel and is capable of 7.1 maximum channel processing. It supports Dolby Atmos and DTS:X, passes 4K/60Hz 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.

    Amplifier
    83
    Audio Features
    84
    Video Features
    84
    Connectivity
    79
    Zones
    55
    Radio
    79
    OVERALL
    80

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


    Here is a history of the series, where you can view and compare the main specifications of the receivers.

    Evolution of the series
    Model Year Chann. Power Dolby Atmos DTS:X HDR10 HDR10+ Dolby Vision Pass. Price
    RX-A680 Image cannot be found 2018 7.2 80 W 4K
    RX-A670 Image cannot be found 2017 7.2 80 W 4K
    RX-A660 Image cannot be found 2016 7.2 80 W 4K
    RX-A550 Image cannot be found 2015 5.1 80 W 4K

    You can view their side-by-side comparison here: Yamaha RX-A680 vs RX-A670 vs RX-A660 vs RX-A550.

    2. Pros and Cons

    In this section we present pros and cons of Yamaha Aventage RX-A660.

    PROs

    •   Dolby Atmos
    •   DTS:X
    •   DSD via HDMI
    •   Auto Speaker Calibration System with Mic.
    •   HDR10
    •   New HDCP Version
    •   Wi-Fi
    •   Bluetooth
    •   Works with Amazon Alexa
    •   USB Input
    •   Composite Video Inputs
    •   Ethernet
    •   Analog Tuner
    •   Spotify

    CONs

    •   Low Power Output - 80 W
    •   No Front Wide Channel Support
    •   No Dolby Atmos Height Virtualization
    •   No IMAX Enhanced
    •   No Auro 3D with Auro-Matic Upmixer
    •   No HDR10+
    •   No Dolby Vision
    •   No eARC
    •   No 8K Passthrough
    •   4 HDMI Inputs
    •   1 HDMI Outputs
    •   0 8K Input
    •   No Phono Input
    •   No RCA Pre-Outs
    •   No Zones
    •   No Digital Radio
    •   No Pandora
    •   No Tidal
    •   Bluetooth 2․1 + EDR

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

    AVERAGE

    •   7.2 Channels
    •   7.1 Channel Processing
    •   RCA Line Inputs

    3. Yamaha 2016 Lineup

    In 2016 Yamaha released 6 new receivers. Here is the lineup:

    Yamaha 2016 Lineup
    ModelChannelsPowerMax. Ch. Proc.Pre OutsHDRZones Price
    RX-A3060 Image cannot be found 9.2150 W11.211.2HDR10
    Dolby Vision
    4
    RX-A2060 Image cannot be found 9.2140 W9.27.2HDR10
    Dolby Vision
    4
    RX-A1060 Image cannot be found 7.2110 W7.17.2HDR10
    Dolby Vision
    2
    RX-A860 Image cannot be found 7.2100 W7.17.2HDR10
    Dolby Vision
    2
    RX-A760 Image cannot be found 7.290 W7.1HDR10
    Dolby Vision
    2
    RX-A660 Image cannot be found 7.280 W7.1HDR101

    You can view their side-by-side comparison here: Yamaha RX-A3060 vs RX-A2060 vs RX-A1060 vs RX-A860 vs RX-A760 vs RX-A660.

    4. Changes from the RX-A550

    Yamaha Aventage RX-A660 has replaced RX-A550. Here we present differences between these two models.

    UPGRADES Yamaha Aventage RX-A660 vs Yamaha RX-A550
    More Channels 7.2 vs 5.1
    Bi-amp capability vs
    More Channel Processing 7.1 vs 5.1
    Dolby Atmos up to 5.1.2 vs
    Dolby Surround Upmixer vs
    DTS:X up to 5.1.2 vs
    DTS Neural:X vs
    DTS Dialog Control vs
    Dialog Level Adjustment vs
    Dialogue Lift no presence speakers required vs
    HDR10 vs
    BT.2020 color space vs
    Zone B Video Output vs
    More Speaker Terminals 7 vs 5
    More Large Speaker Terminals 7 vs 5
    Higher Dynamic Power per Channel, 2 Ω, Front) 190 W vs 160 W
    Higher Dynamic Power per Channel, 4 Ω, Front) 170 W vs 130 W
    Higher Dynamic Power per Channel, 6 Ω, Front) 140 W vs 110 W
    Higher Dynamic Power per Channel, 8 Ω, Front) [] vs []
    DOWNGRADES Yamaha Aventage RX-A660 vs Yamaha RX-A550
    Dolby Pro Logic vs PLII
    Video Signal Upscaling vs up to 1080p
    Less HDMI Inputs 4 vs 6
    Less Component Video Inputs vs 2
    Less Component Video Outputs vs 1

    For more detailed comparison between the models please visit Yamaha Aventage RX-A660 vs RX-A550.

    5. Amplifier

    7 channel Amplifier

    Yamaha Aventage RX-A660 features 7 channel power amplifier. It is rated at 80 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven).

      AMPLIFIER
      Channels7.2
      Power Output80 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven)
      Front Wide Channel Support
      THX™ Certification
      Continuous 6 Ω Rated
      Discrete Output Stage Circuitry
      Bi-amp Capability

      6. Speaker Configurations

      Yamaha Aventage RX-A660's 7 channel amplifier can be assigned for different speaker configurations.

      • Dolby Atmos Configurations: The following speaker configurations are supported for Dolby Atmos:
      • 5.2.2 with internal amplifier.
      • DTS:X Configurations: The speaker configurations for DTS:X are the same as for Dolby Atmos:
      • 5.2.2 with internal amplifier.
      • Configurations without height channels: There are also other speaker configurations available which do not include height channels:
      • 5.2, 7.2 with internal amplifier.
      • 2-ch Bi-Amp: Yamaha Aventage RX-A660 allows you 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.

      7. Immersive Audio Formats

      Dolby Atmos

      Yamaha Aventage RX-A660 supports Dolby Atmos with Surround Upmixer.

      • 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

      Yamaha Aventage RX-A660 supports DTS:X with Neural:X.

      • Neural:X 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 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.
      DECODING
      Dolby Atmos up to 5.1.2
      Dolby Atmos Height Virtualization
      Dolby Atmos Music
      Dolby TrueHD
      Dolby Digital Plus
      Dolby Surround Upmixer
      Dolby Pro Logic
      Dolby Digital EX
      DTS:X up to 5.1.2
      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

      8. HDMI

      Yamaha Aventage RX-A660 features 4 HDMI inputs. It has 1 output.

      • 4K/60Hz Passthrough: All inputs pass up to 4K/60p 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%.
      • HDCP 2.2 Copy Protection: All inputs and outputs are HDCP 2.2 compliant which is a requirement for 4K/HDR copy-protected content transmission.
      • 3D Ready: Yamaha Aventage RX-A660 is able to pass 3D video through HDMI.
      andh3>HDR (High Dynamic Range)

      Yamaha Aventage RX-A660 supports HDR (high dynamic range) video formats such as HDR10 via HDMI ports. 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.



      VIDEO FEATURES
      HDR10
      HDR10+
      Dynamic HDR
      BT.2020 color space
      Dolby Vision
      HLG (Hybrid Log Gamma)
      HDBaseT Compatible
      Enhanced Audio Return Channel (eARC)
      HDCP Version2.2
      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/60p 4:4:4
      Video Signal Upscaling

      9. Room Calibration

      Yamaha Aventage RX-A660 comes with YPAO room correction system and includes the calibration microphone.

      • 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.

      10. Inputs and Outputs

      Audio

      • Analog Line Inputs: There are 4 line inputs for analog audio connection.
      • Digital Inputs: 1 optical input and 2 coaxial inputs are available for digital audio connection.
      • Headphone Output: There is a 6.3 mm (1/4") headphone output jack on the front panel.

      Video

      • HDMI:
      • Inputs: 4   Outputs: 1
        8K Inputs: 0
      • Composite Video: Connect you VCR, Laserdisc player and other old video equipment with composite video cables.
      • Inputs: 4   Outputs: 1

      Front A/V Inputs

      • USB, mini-jack Audio
      Image cannot be found
      Image cannot be found
      TERMINALS
      HDMI Inputs4
      HDMI Outputs1
      8K Inputs
      USB InputUSB memory, portable audio player
      USB DC Out Port
      Optical Inputs1
      Optical Outputs
      Coaxial Inputs2
      RCA Line Inputs4 (1 front)
      RCA Line Outputs
      XLR Line Inputs
      Phono Input
      Multi-Channel Input
      RCA Pre-Outs0.2
      XLR Pre-outs
      Composite Video Inputs4
      Composite Video Outputs1
      S-Video Inputs
      S-Video Outputs
      Component Video Inputs
      Component Video Outputs

      11. Replaced by RX-A670

      In 2017 Yamaha Aventage RX-A660 was replaced by Yamaha RX-A670. Let us now have a look at some important differences between Yamaha Aventage RX-A660 and its successor.

      UPGRADES Yamaha RX-A670 vs Yamaha Aventage RX-A660
      Dialog Normalization vs
      YPAO Volume vs
      Dolby Vision vs
      HLG vs
      Enhanced Audio Return Channel (eARC) vs
      Video Signal Upscaling up to 4K 60p 4:4:4 vs
      RS-232C Interface vs
      Remote (IR) Input/Output 0 / 0 vs 0 / 0
      Party Mode vs
      Digital Radio DAB/DAB+ vs
      Tidal vs
      Deezer vs
      SiriusXM vs
      DOWNGRADES Yamaha RX-A670 vs Yamaha Aventage RX-A660
      Less Composite Video Inputs 3 vs 4
      Analog Tuner FM vs FM/AM

      For more detailed comparison between the models please visit Yamaha Aventage RX-A660 vs RX-A670.

      12. Evaluation

      We evaluate Yamaha Aventage RX-A660 and give score of 80 out of 100. We also give separate scores for 6 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.


      OVERALL
      80

      Amplifier

      GOOD
      83

      We give Yamaha Aventage RX-A660 a score of 83 for Amplifier features.

      •   7.2 Channels
      •   Low Power Output - 80 W

      Audio Features

      GOOD
      84

      We give Yamaha Aventage RX-A660 a score of 84 for Audio Features features.

      •   7.2 Channels
      •   No Front Wide Channel Support
      •   7.1 Channel Processing
      •   Dolby Atmos
      •   No Dolby Atmos Height Virtualization
      •   DTS:X
      •   No IMAX Enhanced
      •   No Auro 3D with Auro-Matic Upmixer
      •   DSD via HDMI

      Video Features

      GOOD
      84

      We give Yamaha Aventage RX-A660 a score of 84 for Video Features features.

      •   HDR10
      •   No HDR10+
      •   No Dolby Vision
      •   No 8K Passthrough

      Connectivity

      GOOD
      79

      We give Yamaha Aventage RX-A660 a score of 79 for Connectivity features.

      •   No eARC
      •   New HDCP Version
      •   Wi-Fi
      •   Bluetooth
      •   Works with Amazon Alexa
      •   4 HDMI Inputs
      •   1 HDMI Outputs
      •   0 8K Input
      •   USB Input
      •   RCA Line Inputs
      •   No Phono Input
      •   No RCA Pre-Outs
      •   Composite Video Inputs
      •   Ethernet
      •   Bluetooth 2․1 + EDR

      Zones

      AVERAGE
      55

      We give Yamaha Aventage RX-A660 a score of 55 for Zones features.

      •   No Zones

      Radio

      GOOD
      79

      We give Yamaha Aventage RX-A660 a score of 79 for Radio features.

      •   Analog Tuner
      •   No Pandora
      •   Spotify
      •   No Tidal

      13. Specifications

      GENERAL
      BrandYamaha
      SeriesAventage
      ModelRX-A660
      TypeA/V Receiver
      CountryAustralia
      Release Year2016
      PredecessorYamaha RX-A550
      SuccessorYamaha RX-A670
      AMPLIFIER
      Channels7.2
      Power Output80 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven)
      Front Wide Channel Support
      THX™ Certification
      Continuous 6 Ω Rated
      Discrete Output Stage Circuitry
      Bi-amp Capability
      AUDIO FEATURES
      Surround:AI™
      DACBurr-Brown
      DAC Specs192 kHz/24 Bit
      Maximum Channel Processing7.1
      Air Studios Monitor Certification
      Dolby Atmos up to 5.1.2
      Dolby Atmos Height Virtualization
      Dolby Atmos Music
      Dolby TrueHD
      Dolby Digital Plus
      Dolby Surround Upmixer
      Dolby Pro Logic
      Dolby Digital EX
      DTS:X up to 5.1.2
      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
      PCM 2-ch/Multi-ch Input
      Network Audio FormatsMP3, WMA, MPEG-4 AAC, Apple Lossless, WAV, FLAC, AIFF, DSD
      Music Playback via USBMP3, WMA, AAC, Apple Lossless, WAV, FLAC, AIFF, DSD
      High Resolution Music Playback via USB and/or Network up to 192 kHz
      High Resolution Audio Formats via USBApple Lossless, WAV, FLAC, AIFF, DSD
      Gapless Playback
      DSD via HDMI 2-ch/Multi-ch Input
      DSD via USB 2-ch Input
      DSD to PCM Converter
      USB DAC
      DTS Dialogue Control
      Dialog Level Adjustment
      Dialog normalization
      Dialogue Lift no presence speakers required
      Compressed Music Enhancer including for Bluetooth®
      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
      CINEMA DSP 3D
      DSP Programs17
      SILENT CINEMA / Virtual CINEMA DSP Virtual CINEMA FRONT
      Virtual Speakers including surround back
      Independent Subwoofer Outputs
      CALIBRATION
      Auto Speaker Calibration System with Mic. YPAO sound optimization
      YPAO Volume
      PEQ for SUBDown to 31 Hz
      VIDEO FEATURES
      HDR10
      HDR10+
      Dynamic HDR
      BT.2020 color space
      Dolby Vision
      HLG (Hybrid Log Gamma)
      HDBaseT Compatible
      Enhanced Audio Return Channel (eARC)
      HDCP Version2.2
      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/60p 4:4:4
      Video Signal Upscaling
      Analog To HDMI Upconversion
      Component Video Upscaling
      Analog to Analog Video conversion
      Video Parameter Adjustments
      isf Certified Calibration Control
      CONNECTIVITY
      Wi-Fi with Wireless Direct
      Bluetooth SBC, AAC
      Works with Amazon Alexa on MusicCast (Voice control using your Alexa device like Echo, Dot, Tap and Show)
      Chromecast Built-In
      Works with SonoS
      DTS Play-Fi
      MHL Input
      DLNA 1.5
      MusicCast
      AirPlay AirPlay
      Apple Product Connection iPod, iPhone and iPad
      Remote App (iPhone® / iPad® / Android™ phone / tablet)
      InstaPrevue Input Source Prevue
      TERMINALS
      HDMI Inputs4
      HDMI Outputs1
      8K Inputs
      USB InputUSB memory, portable audio player
      USB DC Out Port
      Optical Inputs1
      Optical Outputs
      Coaxial Inputs2
      RCA Line Inputs4 (1 front)
      RCA Line Outputs
      XLR Line Inputs
      Phono Input
      Multi-Channel Input
      RCA Pre-Outs0.2
      XLR Pre-outs
      Composite Video Inputs4
      Composite Video Outputs1
      S-Video Inputs
      S-Video Outputs
      Component Video Inputs
      Component Video Outputs
      Ethernet
      Ethernet Switch
      PC In
      Front A/V InputsUSB, mini-jack Audio
      Speaker A/B
      Headphone Out6.3 mm (1/4")
      Detachable Power Cord
      dockport
      ZONES
      Number of Zones1
      Zone B Video Output
      RS-232C Interface
      +12V Trigger Output
      Remote (IR) Input/Output0 / 0
      Party Mode
      MISCELLANEOUS
      On-Screen Display color OSD
      SCENESCENE (4 sets)
      Web Control
      PreAmp Mode
      RADIO
      Analog Tuner FM/AM
      Presets40
      Digital Radio
      Internet Radio vTuner
      Pandora
      Spotify
      Tidal
      Deezer
      Napster
      SiriusXM
      CONSTRUCTION
      A.R.T. Wedge
      Speaker Terminals7
      Large Speaker Terminals7
      Color-Coded Speaker Terminals
      Gold plated RCA terminals
      POWER
      Power SupplyAC 240 V, 50 Hz
      Power Consumption260 W
      Standby Power0.1 W
      ECO Mode / Hybrid Standby Function
      Auto Power Standby
      PHYSICAL
      Dimensions (W x H x D)435 mm x 161 mm x 330 mm (with antenna: 435 mm x 225.5 mm x 330 mm)
      Weight8.3 kg (18.3 lbs)
      SPECIFICATIONS
      Power Output (6 Ω, 20 Hz - 20 kHz, 2 channel driven)80 W (0.09% THD)
      Power Output (6 Ω, 1 kHz, 1 channel driven, FTC)115 W (0.9% THD)
      Maximum Effective Power Output (6 Ω, 1 kHz, 1 channel driven, JEITA or IEC)135 W (10% THD)
      Dynamic Power per Channel (2 Ω, Front)190 W
      Dynamic Power per Channel (4 Ω, Front)170 W
      Dynamic Power per Channel (6 Ω, Front)140 W
      Damping Factor100 (Front, 20 Hz - 20 kHz, 8 Ω)
      Input Sensitivity and Impedance (Line)200 mV/47 kΩ (1 kHz, 100 W/6 Ω)
      Maximum Input Sensitivity (Line)2.3 V (1 kHz, 0.5% THD)
      Rated Headphone Jack Output Level and Impedance100 mV/470 Ω (1 kHz, 50 mV, 8 Ω)
      S/N Ratio (Line, IHF-A)110 dB
      Frequency Response (Analog In)+0/-3 dB (10 Hz to 100 kHz)
      Residual noise (IHF-A Network)150 µV (Speaker Out)
      Channel Separation at 1 kHz/10 kHz (LINE)75 dB/50 dB
      DSD Sampling Rates via HDMI2.8 MHz
      DSD Sampling Rates via USB5.6 MHz, 2.8 MHz
      Video Input Sensitivity/Output Level and Impedance 1 Vp-p/75 Ω (Composite)
      Video Maximum Input1.5 Vp-p
      Video S/N Ratio50 dB
      Ethernet Standard10BASE-T/100BASE-TX
      Wi-Fi StandardIEEE 802.11 b/g/n
      Wi-Fi Terminal Frequency2.4 GHz
      Bluetooth Version2․1 + EDR
      Bluetooth Frequency2.4 GHz
      USB TerminalUSB2.0 5 V, 1 A
      FM Frequency87.50 MHz - 108.00 MHz
      FM 50 dB Quiet Sensitivity (IHF, 1 kHz, 100% MOD.)Mono: 3 µV (20.8 dBf)
      FM S/N RatioMono/Stereo: 65 dB/64 dB
      FM Harmonic Distortion (IHF, 1 kHz)Mono/Stereo: 0.5%/0.6%
      AM Frequency531 kHz - 1611 kHz
      Warranty3 Years

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

      Discussion

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