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Onkyo TX-NR646 vs Onkyo TX-NR686

    17.13 in
    6.83 in
    Onkyo TX-NR646 Av Receiver
    Onkyo TX-NR646
      17.13 in
      6.83 in
      Onkyo TX-NR686 Av Receiver
      Onkyo TX-NR686
      Available colors
      User rating
      46
      4.0 out of 5
      46 user ratings
      5 stars
      		32 %
      4 stars
      		43 %
      3 stars
      		15 %
      2 stars
      		8 %
      1 stars
      		0 %
      52
      3.8 out of 5
      52 user ratings
      5 stars
      		28 %
      4 stars
      		32 %
      3 stars
      		28 %
      2 stars
      		5 %
      1 stars
      		3 %

      Full Comparison

      Units:

      Connectivity

      Onkyo TX-NR646Onkyo TX-NR646
      Onkyo TX-NR686Onkyo TX-NR686
      Audio (L/R) in87
      Composite video in32
      Component video (YPbPr/YCbCr) in22
      Digital audio optical in22
      Digital audio coaxial in11
      Number of HDMI inputs87
      Number of HDMI outputs22
      USB ports quantity11
      Bluetoothyesyes
      Bluetooth profiles
      • A2DP
      • AVRCP
      		A2DP
      Bluetooth version2.1+EDR4.1
      Ethernet LANnoyes
      Wi-Fiyesyes

      Audio properties

      Onkyo TX-NR646Onkyo TX-NR646
      Onkyo TX-NR686Onkyo TX-NR686
      Audio output channels7.27.2
      Audio Return Channel (ARC)yesyes
      Impedance16.0 Ω8.0 Ω
      Frequency range10 - 10000010 - 100000
      Input impedance47000.0 Ω47.0 Ω
      Total Harmonic Distortion (THD)0.08 %0.08 %
      Signal-to-Noise Ratio (SNR)100.0 dB106.0 dB
      Audio formats supported
      • AAC
      • FLAC
      • LPCM
      • MP3
      • OGG
      • WAV
      • WMA
      • 3G2
      • 3GP
      • AAC
      • AIFF
      • DFF
      • DSD
      • DSF
      • FLAC
      • M4A
      • MP3
      • MP4
      • WAV
      • WMA
      Audio decoders
      • Dolby TrueHD
      • DTS-HD Master Audio
      • DTS
      • DTS 96/24
      • DTS-ES
      • DTS-ES
      • DTS-HD Master Audio
      • DTS:X
      • Dolby Atmos
      • Dolby Digital
      • Dolby Digital Plus
      • Dolby Surround
      • Dolby TrueHD

      Video

      Onkyo TX-NR646Onkyo TX-NR646
      Onkyo TX-NR686Onkyo TX-NR686
      3Dyesyes

      Design

      Onkyo TX-NR646Onkyo TX-NR646
      Onkyo TX-NR686Onkyo TX-NR686
      Colour of product
      • Silver
      • Black
      • Black
      • Silver

      Dimensions

      Onkyo TX-NR646Onkyo TX-NR646
      Onkyo TX-NR686Onkyo TX-NR686
      Width17.13 in17.13 in
      Depth12.95 in14.94 in
      Height6.83 in6.83 in
      Weight331.58 oz352.74 oz

      Radio

      Onkyo TX-NR646Onkyo TX-NR646
      Onkyo TX-NR686Onkyo TX-NR686
      Supported radio bands
      • AM
      • FM
      • AM
      • FM
      AM antennayesyes
      AM band range522 - 1710522 - 1629
      FM antennayesyes
      FM band range87.5 - 107.976 - 95
      Preset stations quantity4040

      Features

      Onkyo TX-NR646Onkyo TX-NR646
      Onkyo TX-NR686Onkyo TX-NR686
      Optical drive includednono
      Handheld remote controlyesyes

      Power

      Onkyo TX-NR646Onkyo TX-NR646
      Onkyo TX-NR686Onkyo TX-NR686
      Power consumption (typical)630.0 W490.0 W
      Power consumption (standby)0.15 W0.1 W

      Pros & Cons

      Pros
          Cons

              Often compared with Onkyo TX-NR646

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              Onkyo TX-NR646 Av Receiver
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