Denon AVC-X3700H vs Onkyo TX-NR636

      Highlights

      • 9.2 Channels
      • 11.2 Channel Processing
      • 105 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven)
      • HDMI 2.1
      • Dolby Atmos, DTS:X
      • HDR10, HDR10+, Dolby Vision
      • 8K Passthrough, 8K Upscaling
      • Wi-Fi, Bluetooth, Ethernet
      • Phono Input

      Highlights

      • 7.2 Channels
      • 7.1 Channel Processing
      • 95 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven)
      • Dolby Atmos
      • 4K/60Hz Passthrough, 4K/30Hz Upscaling
      • Wi-Fi, Bluetooth, Ethernet
      • Phono Input

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

      1. Overview

      Here we are comparing Denon AVC-X3700H to Onkyo TX-NR636 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 AVC-X3700H has 9 channel and the Onkyo TX-NR636 has 7 channel amplifiers with Denon AVC-X3700H's being more powerful.


      Denon AVC-X3700H Onkyo TX-NR636

      Denon AVC-X3700H was introduced in 2020. It is equipped with 9 channel amplifier with 105 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 and DTS:X, passes 8K/60Hz and 4K/120Hz and upscales up to 8K 50/60Hz and 4K 100/120Hz 4:4:4 video signal.

      Onkyo TX-NR636 was introduced in 2014. It is equipped with 7 channel amplifier with 95 W (8 Ω, 20 Hz - 20 kHz and 2 channel driven) power per channel and is capable of 7.1 maximum channel processing. It supports Dolby Atmos, passes 4K/60Hz and upscales up to 4K/30p (Marvell Qdeo) video signal.


      We evaluated Denon AVC-X3700H and Onkyo TX-NR636 and gave them scores of 91 and 81 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 AVC-X3700H

      Onkyo TX-NR636

      Amplifier
      89
      Amplifier
      87
      Audio Features
      92
      Audio Features
      81
      Video Features
      99
      Video Features
      71
      Connectivity
      90
      Connectivity
      83
      Zones
      85
      Zones
      77
      Radio
      82
      Radio
      88
      OVERALL
      91
      OVERALL
      81

      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 AVC-X3700H and Onkyo TX-NR636.

      PROS

      Denon AVC-X3700H

      Onkyo TX-NR636

      •   11.2 Channel Processing
      •   Dolby Atmos
      •   Dolby Atmos Height Virtualization
      •   DTS:X
      •   IMAX Enhanced
      •   DSD via HDMI
      •   Auto Speaker Calibration System with Mic.
      •   HDR10
      •   HDR10+
      •   Dolby Vision
      •   HDMI 2.1
      •   eARC
      •   New HDCP Version
      •   Auto Low Latency Mode Pass-through
      •   VRR
      •   QFT
      •   8K Passthrough
      •   8K Upscaling
      •   Analog To HDMI Upconversion
      •   Wi-Fi
      •   Bluetooth
      •   Works with Amazon Alexa
      •   Google Assistant
      •   HEOS
      •   7 HDMI Inputs
      •   4 HDMI Outputs
      •   USB Input
      •   Many RCA Line Inputs
      •   Phono Input
      •   RCA Pre-Outs
      •   Composite Video Inputs
      •   Component Video Inputs
      •   Ethernet
      •   Spotify
      •   Tidal
      •   Dolby Atmos
      •   DSD via HDMI
      •   Auto Speaker Calibration System with Mic.
      •   New HDCP Version
      •   Analog To HDMI Upconversion
      •   Wi-Fi
      •   Bluetooth
      •   7 HDMI Inputs
      •   USB Input
      •   Many RCA Line Inputs
      •   Phono Input
      •   Composite Video Inputs
      •   Component Video Inputs
      •   Ethernet
      •   Analog Tuner
      •   Pandora
      •   Spotify
      •   Independent Power Supply

      CONS

      Denon AVC-X3700H

      Onkyo TX-NR636

      •   No Front Wide Channel Support
      •   No Auro 3D with Auro-Matic Upmixer
      •   1 8K Input
      •   No Analog Tuner
      •   No Digital Radio
      •   No Pandora
      •   No Front Wide Channel Support
      •   No Dolby Atmos Height Virtualization
      •   No DTS:X
      •   No IMAX Enhanced
      •   No Auro 3D with Auro-Matic Upmixer
      •   No HDR10
      •   No HDR10+
      •   No Dolby Vision
      •   No eARC
      •   No 8K Passthrough
      •   Does not Work with Amazon Alexa
      •   0 8K Input
      •   No RCA Pre-Outs
      •   No Digital Radio
      •   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

      Denon AVC-X3700H

      Onkyo TX-NR636

      •   9.2 Channels
      •   Power Output - 105 W
      •   2 Zones
      •   Bluetooth 4․2
      •   7.2 Channels
      •   Power Output - 95 W
      •   7.1 Channel Processing
      •   2 HDMI Outputs
      •   2 Zones

      3. Advantage of Denon AVC-X3700H

      This section shows those features and specifications which are the reason to choose Denon AVC-X3700H over Onkyo TX-NR636.

      Check the Price

      Denon AVC-X3700H vs Onkyo TX-NR636
      More Channels 9.2 vs 7.2
      Higher Power Output 105 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven) vs 95 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven)
      Higher DAC Specs 384 kHz/32 Bit vs 192 kHz/24 Bit
      More Channel Processing 11.2 vs 7.1
      Dolby Atmos Height Virtualization vs
      DTS:X up to 7.1.4 vs
      DTS Neural:X vs
      DTS Virtual:X vs
      IMAX Enhanced vs
      Higher Resolution Music Playback via USB up to 192 kHz vs up to 96 kHz
      DTS Dialog Control vs
      Dialog Level Adjustment vs
      Dialog Normalization vs
      Audyssey Dynamic EQ vs
      Audyssey Dynamic Volume vs
      Audyssey LFC vs
      Audyssey Sub EQ HT vs
      Independent Subwoofer Outputs vs
      HDR10 vs
      HDR10+ vs
      Dynamic HDR vs
      BT.2020 color space vs
      Dolby Vision vs
      HLG vs
      Enhanced Audio Return Channel (eARC) vs
      Newer HDCP Version 2.3 vs 2.2
      Auto Low Latency Mode Pass-through vs
      VRR vs
      QFT vs
      Video Signal Passthrough up to 8K 50/60Hz and 4K 100/120Hz 4:4:4 vs up to 4K/60p (YCbCr 4:2:0)
      Video Signal Upscaling up to 8K 50/60Hz and 4K 100/120Hz 4:4:4 vs up to 4K/30p (Marvell Qdeo)
      isf Certified Calibration Control vs
      Works with Amazon Alexa vs
      AirPlay AirPlay 2 vs AirPlay via optional Onkyo RI Dock DS-A5 (sold separately)
      More HDMI Outputs 3 (2 x 8K for MAIN, 1 x 4K for ZONE2) vs 2 (simultaneous)
      More 8K Inputs 1 vs
      More Optical Inputs 2 vs 1
      More RCA Pre-Outs 11.2 vs 0.2
      More Component Video Inputs 2 vs 1
      Speaker A/B assignable vs
      Zone 2 Outs HDMI, Component, Pre Out vs RCA Line Out
      RS-232C Interface vs
      +12V Trigger Output 1 vs 0
      Remote (IR) Input/Output 1 / 1 vs 0 / 0
      Tidal vs
      Deezer vs
      Napster vs
      More Speaker Terminals 11 vs 9
      More Large Speaker Terminals 11 vs 9
      Bigger Power Supply 660 W vs 630 W
      Higher Power Output (8 Ω, 20 Hz - 20 kHz, 2 channel driven, FTC) 105 W (0.08% THD) vs 95 W (0.08% THD)
      Higher Power Output (6 Ω, 1 kHz, 2 channel driven, FTC) 135 W (0.7% THD) vs 115 W (0.7% THD)
      Higher Power Output (6 Ω, 1 kHz, 1 channel driven, IEC) 180 W (1% THD) vs 160 W (1% THD)
      Higher Rated Lineout Level 1.2 V vs 200 mV/2.2 kΩ
      Higher DSD Sampling Rate via USB 5.6 MHz, 2.8 MHz vs 2.8 MHz
      Wi-Fi Standard IEEE 802.11 a/b/g/n vs IEEE 802.11 b/g/n
      Wi-Fi Terminal Frequency 5 GHz, 2.4 GHz vs 2.4 GHz
      Newer Bluetooth Version 4․2 vs 2․1 + EDR
      Longer Warranty 3 Years vs 2 Years
      Check out other receivers which are frequently compared to Denon AVC-X3700H.

      4. Advantage of Onkyo TX-NR636

      This section shows those features and specifications which are the reason to choose Onkyo TX-NR636 over Denon AVC-X3700H.

      Check the Price

      Denon AVC-X3700H vs Onkyo TX-NR636
      Surround EX vs also known as Dolby Digital Surround EX
      DTS Neo vs Neo:6
      Music Playback via USB MP3, WMA, MPEG-4 AAC, Apple Lossless, WAV, FLAC, DSD vs FLAC, WAV, Apple Lossless, WMA, WMA Lossless, Ogg, MP3, DSD, AAC, LPCM, Dolby TruHD
      High Resolution Audio Formats via USB Apple Lossless, WAV, FLAC, DSD vs FLAC, WAV, WMA Lossless, Apple Lossless, DSD, AAC
      Jitter Reduction vs PLL (Phase Locked Loop) Jitter-Cleaning Circuit Technology for S/PDIF Audio
      MHL Input vs Front HDMI
      InstaPrevue Input Source Prevue vs
      Front A/V Inputs USB vs HDMI/MHL, USB
      Analog Tuner vs FM/AM with RDS
      Pandora vs
      Higher S/N Ratio (Line, IHF-A) 100 dB vs 106 dB
      Higher S/N Ratio (Phono MM, IHF-A) 74 dB vs 80 dB
      Higher DSD Sampling Rate via HDMI 2.8 MHz vs 2.8 MHz, 5.6 MHz

      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 AVC-X3700H Onkyo TX-NR636
        Dolby Atmos up to 7.1.4
        DSD via HDMI 2-ch/Multi-ch Input 2-ch/Multi-ch Input
        Auto Speaker Calibration System with Mic. Audyssey MultEQ XT32 AccuEQ
        New HDCP Version2.32.2
        Analog To HDMI Upconversion Component**, Composite Component**, Composite
        Wi-Fi
        Bluetooth SBC
        Many HDMI Inputs77 (1 front)
        USB Input1 Front for USB memory1 (Front)
        Many RCA Line Inputs66
        Phono Input
        Composite Video Inputs33
        Component Video Inputs21
        Ethernet
        Spotify
      WEAKNESSES Denon AVC-X3700H Onkyo TX-NR636
        No Front Wide Channel Support
        No Auro 3D with Auro-Matic Upmixer
        Few 8K Inputs1
        No Digital Radio

      6. Amplifier

      Denon AVC-X3700H Onkyo TX-NR636

      9 channel Amplifier: Denon AVC-X3700H features 9 channel power amplifier. It is rated at 105 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven) and is able to drive 4 ohm speakers.

      7 channel Amplifier: Onkyo TX-NR636 features 7 channel power amplifier. It is rated at 95 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven) and is able to drive 4 ohm speakers.

      • WRAT (Wide Range Amp Technology): Onkyo TX-NR636 features Onkyo’s Wide Range Amp Technology (WRAT) circuit layout that prevents phase shifting by pushing the roll-off point higher than the listening-level frequency. Amplifying sound without phase shift creates an uncommonly well-focused and realistic audio image. If phase shift occurs and signal timing is not accurate, then neither is the resulting audio image.


      AMPLIFIER Denon AVC-X3700H Onkyo TX-NR636
      Channels9.27.2
      Power Output105 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven)95 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven)
      Front Wide Channel Support
      THX™ Certification
      Continuous 6 Ω Rated
      Certified 4 Ω Performance
      Bi-amp Capability assignable

      Check the Price

      7. Speaker Configurations

      Denon AVC-X3700H's and Onkyo TX-NR636's amplifiers can be assigned for different speaker configurations.

      • Dolby Atmos Configurations: The following speaker configurations are supported for Dolby Atmos:
      • Denon AVC-X3700H: 5.2.2, 5.2.4, 7.2.2 with internal amplifier and 7.2.4 with addition of external 2 channel amplifier.
      • Onkyo TX-NR636: 5.2.2 with internal amplifier.
      • DTS:X Configurations: The following speaker configurations are supported for DTS:X:
      • Denon AVC-X3700H: 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.
      • Onkyo TX-NR636: Not supported.
      • Configurations without height channels: There are also other speaker configurations available which do not include height channels:
      • Denon AVC-X3700H: 5.2, 7.2 with internal amplifier.
      • Onkyo TX-NR636: 5.2, 7.2 with internal amplifier.
      • 2-ch Bi-Amp: Both models are 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 AVC-X3700H and Onkyo TX-NR636 support Dolby Atmos.

      • Dolby Surround Upmixer: Both models support 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.
      • Dolby Atmos Height Virtualization: Denon AVC-X3700H supports Dolby Atmos Height Virtualization which is a digital signal processing solution that leverages Dolby's deep understanding of human audio perception to create the sensation of overhead sound from the listener-level speakers.

      DTS:X

      Denon AVC-X3700H supports DTS:X.

      • DTS Neural:X: Denon AVC-X3700H 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 AVC-X3700H 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 AVC-X3700H 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.

      IMAX Enhanced

      Denon AVC-X3700H 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 AVC-X3700H Onkyo TX-NR636
      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
      Surround EX also known as Dolby Digital 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 Discrete 6.1, Matrix 6.1
      IMAX Enhanced
      Auro 3D with Auro-Matic Upmixer

      Check the Price

      9. HDMI

      Denon AVC-X3700H comes with 1 HDMI 2.1 input with 8K support and 6 inputs with 4K support. It has 3 outputs - 2 x 8K for MAIN and 1 x 4K for ZONE2.

      Onkyo TX-NR636 comes with 7 HDMI inputs. It has 2 outputs which work parallelly and output the same signal.

      • 8K/60Hz and 4K/120Hz Passthrough on Denon AVC-X3700H: 1 out of 7 inputs passes up to 8K 50/60Hz and 4K 100/120Hz 4:4:4 and the rest of the inputs pass up to 4K 50/60Hz 4:4:4 video signal.
        4K/60Hz Passthrough on Onkyo TX-NR636: All inputs pass up to 4K/60p (YCbCr 4:2:0) video signal.
      • 8K Upscaling on Denon AVC-X3700H: It can upscale up to 8K 50/60Hz and 4K 100/120Hz 4:4:4 from HDMI and analog sources.
        4K Upscaling on Onkyo TX-NR636: It can upscale up to 4K/30p (Marvell Qdeo) from HDMI and analog sources.
      • Analog To HDMI Upconversion: Both receivers support 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 Denon AVC-X3700H only).
      • HDCP Copy Protection: Denon AVC-X3700H is HDCP 2.3 and Onkyo TX-NR636 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)

      Denon AVC-X3700H supports HDR10, HDR10+, Dolby Vision, Dynamic HDR and Hybrid Log-Gamma.

      Onkyo TX-NR636 does not support HDR. 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 AVC-X3700H 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

      Denon AVC-X3700H supports Auto Low Latency Mode (ALLM), Variable Refresh Rate (VRR) and Quick Frame Transport (QFT) for lag-free and smooth gaming.



      VIDEO FEATURES Denon AVC-X3700H Onkyo TX-NR636
      HDR10
      HDR10+
      Dynamic HDR
      BT.2020 color space
      Dolby Vision
      HLG (Hybrid Log Gamma)
      HDBaseT Compatible
      Enhanced Audio Return Channel (eARC)
      HDCP Version2.32.2
      QMS (Quick Media Switching)
      ALLM (Auto Low Latency Mode)
      VRR (Variable Refresh Rate)
      QFT (Quick Frame transport)
      3-D Ready
      Video Signal Passthroughup to 8K 50/60Hz and 4K 100/120Hz 4:4:4up to 4K/60p (YCbCr 4:2:0)
      Video Signal Upscaling up to 8K 50/60Hz and 4K 100/120Hz 4:4:4 up to 4K/30p (Marvell Qdeo)

      Check the Price

      10. Inputs and Outputs

      Audio

      • Phono Input: There is an MM phono input on Denon AVC-X3700H and Onkyo TX-NR636 with built-in phono stage for connecting the moving magnet cartridge output of the turntable directly to the receiver.
      • Analog Pre-Outs: Denon AVC-X3700H 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 AVC-X3700H 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 6 pair of line inputs on both receivers for connecting sources with analog outputs.
      • Digital Inputs: 2 optical inputs and 2 coaxial inputs are available on Denon AVC-X3700H and 1 optical input and 2 coaxial inputs are available on Onkyo TX-NR636 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 AVC-X3700H
        Inputs:
        7   Outputs: 3 (2 x 8K for MAIN, 1 x 4K for ZONE2)
        8K Inputs: 1.
      • Onkyo TX-NR636
        Inputs:
        7 (1 front)   Outputs: 2 (simultaneous)
        8K Inputs: 0.
      • Composite Video: Connect you VCR, Laserdisc player and other old video equipment with composite video cables.
      • Denon AVC-X3700H
        Inputs:
        3   Outputs: 1.
      • Onkyo TX-NR636
        Inputs:
        3   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.
      • Onkyo TX-NR636 supports up to 1080p resolution on Component video connectors.
      • Denon AVC-X3700H
        Inputs:
        2   Outputs: 1.
      • Onkyo TX-NR636
        Inputs:
        1   Outputs: 1.

      Front A/V Inputs

      • Denon AVC-X3700H: USB
      • Onkyo TX-NR636: HDMI/MHL, USB

      Denon AVC-X3700H

      Image cannot be found Image cannot be found

      Onkyo TX-NR636

      Image cannot be found Image cannot be found
      TERMINALS Denon AVC-X3700H Onkyo TX-NR636
      HDMI Inputs77 (1 front)
      HDMI Outputs3 (2 x 8K for MAIN, 1 x 4K for ZONE2)2 (simultaneous)
      8K Inputs1
      USB Input1 Front for USB memory1 (Front)
      USB DC Out Port
      Optical Inputs21
      Optical Outputs
      Coaxial Inputs22
      RCA Line Inputs66
      RCA Line Outputs
      XLR Line Inputs
      Phono Input
      Multi-Channel Input
      RCA Pre-Outs11.20.2
      XLR Pre-outs
      Composite Video Inputs33
      Composite Video Outputs11
      S-Video Inputs
      S-Video Outputs
      Component Video Inputs21
      Component Video Outputs11

      Check the Price

      11. Evaluations

      We evaluated Denon AVC-X3700H and Onkyo TX-NR636 and gave them scores of 91 and 81 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 AVC-X3700H

      Onkyo TX-NR636

      OVERALL
      91
      OVERALL
      81

      Amplifier

      EXCELLENT
      89
      •   9.2 Channels
      •   Power Output - 105 W
      EXCELLENT
      87
      •   7.2 Channels
      •   Power Output - 95 W
      •   Independent Power Supply

      Audio Features

      EXCELLENT
      92
      •   9.2 Channels
      •   No Front Wide Channel Support
      •   11.2 Channel Processing
      •   Dolby Atmos
      •   Dolby Atmos Height Virtualization
      •   DTS:X
      •   IMAX Enhanced
      •   No Auro 3D with Auro-Matic Upmixer
      •   DSD via HDMI
      GOOD
      81
      •   7.2 Channels
      •   No Front Wide Channel Support
      •   7.1 Channel Processing
      •   Dolby Atmos
      •   No Dolby Atmos Height Virtualization
      •   No DTS:X
      •   No IMAX Enhanced
      •   No Auro 3D with Auro-Matic Upmixer
      •   DSD via HDMI

      Video Features

      EXCELLENT
      99
      •   HDR10
      •   HDR10+
      •   Dolby Vision
      •   HDMI 2.1
      •   Auto Low Latency Mode Pass-through
      •   VRR
      •   QFT
      •   8K Passthrough
      •   8K Upscaling
      •   Analog To HDMI Upconversion
      GOOD
      71
      •   No HDR10
      •   No HDR10+
      •   No Dolby Vision
      •   No 8K Passthrough
      •   Analog To HDMI Upconversion

      Connectivity

      EXCELLENT
      90
      •   eARC
      •   New HDCP Version
      •   Wi-Fi
      •   Bluetooth
      •   Works with Amazon Alexa
      •   Google Assistant
      •   HEOS
      •   7 HDMI Inputs
      •   4 HDMI Outputs
      •   1 8K Input
      •   USB Input
      •   Many RCA Line Inputs
      •   Phono Input
      •   RCA Pre-Outs
      •   Composite Video Inputs
      •   Component Video Inputs
      •   Ethernet
      •   Bluetooth 4․2
      GOOD
      83
      •   No eARC
      •   New HDCP Version
      •   Wi-Fi
      •   Bluetooth
      •   Does not Work with Amazon Alexa
      •   7 HDMI Inputs
      •   2 HDMI Outputs
      •   0 8K Input
      •   USB Input
      •   Many RCA Line Inputs
      •   Phono Input
      •   No RCA Pre-Outs
      •   Composite Video Inputs
      •   Component Video Inputs
      •   Ethernet
      •   Bluetooth 2․1 + EDR

      Zones

      EXCELLENT
      85
      •   2 Zones
      GOOD
      77
      •   2 Zones

      Radio

      GOOD
      82
      •   No Analog Tuner
      •   No Pandora
      •   Spotify
      •   Tidal
      EXCELLENT
      88
      •   Analog Tuner
      •   Pandora
      •   Spotify
      •   No Tidal

      12. Specifications

      GENERAL Denon AVC-X3700H Onkyo TX-NR636
      BrandDenonOnkyo
      ModelAVC-X3700HTX-NR636
      TypeA/V AmplifierA/V Receiver
      CountryUKEurope
      Release Year20202014
      PredecessorDenon AVR-X3600H Onkyo TX-NR626
      SuccessorDenon AVC-X3800H Onkyo TX-NR646
      AMPLIFIER Denon AVC-X3700H Onkyo TX-NR636
      Channels9.27.2
      Power Output105 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven)95 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven)
      Front Wide Channel Support
      Discrete Amplification
      WRAT (Wide Range Amplifier Technology)
      VLSC (Vector Linear Shaping Circuitry)
      Optimum Gain Volume Circuitry
      THX™ Certification
      Continuous 6 Ω Rated
      Certified 4 Ω Performance
      Discrete Output Stage Circuitry
      3-Stage Inverted Darlington Circuitry Front & Center Channels
      PUSH-PULL Design
      Mono Block Power Amplifier Construction
      Independent Block Construction (Amp/Preprocessor)
      Bi-amp Capability assignable
      BTL (Bridged Transless or Bridging)
      AUDIO FEATURES Denon AVC-X3700H Onkyo TX-NR636
      Digital Signal Processing (DSP) EngineTwo sets of powerful DSP chipsDual 32-bit DSP for Powerful Advanced Processing
      DACAKMBurr-Brown
      DAC Specs384 kHz/32 Bit192 kHz/24 Bit
      Maximum Channel Processing11.27.1
      D.D.S.C. HD Digital
      Alpha Processing
      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
      Dolby Digital EX
      Surround EX also known as Dolby Digital 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 Discrete 6.1, Matrix 6.1
      IMAX Enhanced
      Auro 3D with Auro-Matic Upmixer
      PCM 2-ch/Multi-ch Input 2-ch/Multi-ch Input
      Network Audio FormatsMP3, WMA, MPEG-4 AAC, Apple Lossless, WAV, FLAC, DSD
      Music Playback via USBMP3, WMA, MPEG-4 AAC, Apple Lossless, WAV, FLAC, DSDFLAC, WAV, Apple Lossless, WMA, WMA Lossless, Ogg, MP3, DSD, AAC, LPCM, Dolby TruHD
      High Resolution Music Playback via USB and/or Network up to 192 kHz up to 96 kHz
      High Resolution Audio Formats via USBApple Lossless, WAV, FLAC, DSDFLAC, WAV, WMA Lossless, Apple Lossless, DSD, AAC
      Gapless Playback
      DSD via HDMI 2-ch/Multi-ch Input 2-ch/Multi-ch Input
      DSD via USB 2-ch Input 2-ch Input
      DSD to PCM Converter
      USB DAC
      Jitter Reduction PLL (Phase Locked Loop) Jitter-Cleaning Circuit Technology for S/PDIF Audio
      DTS Dialogue Control
      Dialog Enhancement
      Dialog Level Adjustment
      Dialog normalization
      Dialogue Lift
      Tone Control Front L/R Channels
      Compressed Music Enhancer Advanced Music Optimizer (bluetooth included)
      High-resolution Music Enhancer
      THX Processing Mode
      Audyssey Dynamic EQ
      Audyssey Dynamic Volume
      Audyssey LFC
      Audyssey Sub EQ HT
      Audyssey DSX
      Phase-Matching Bass Boost for Deep Bass and Clear Mid-Range
      Direct Mode
      Pure Audio Mode
      Pure Direct Analog Path Mode
      Pure Direct Mode
      Virtual Speakers T-D (Theater-Dimensional)
      Independent Subwoofer Outputs
      CALIBRATION Denon AVC-X3700H Onkyo TX-NR636
      Auto Speaker Calibration System with Mic. Audyssey MultEQ XT32 AccuEQ
      Audyssey App Support
      Optimized Bass Redirection
      Bass Sync
      VIDEO FEATURES Denon AVC-X3700H Onkyo TX-NR636
      HDR10
      HDR10+
      Dynamic HDR
      BT.2020 color space
      Dolby Vision
      HLG (Hybrid Log Gamma)
      HDMI Version2.1
      HDBaseT Compatible
      Enhanced Audio Return Channel (eARC)
      HDCP Version2.32.2
      QMS (Quick Media Switching)
      ALLM (Auto Low Latency Mode)
      VRR (Variable Refresh Rate)
      QFT (Quick Frame transport)
      3-D Ready
      Video Signal Passthroughup to 8K 50/60Hz and 4K 100/120Hz 4:4:4up to 4K/60p (YCbCr 4:2:0)
      Video Signal Upscaling up to 8K 50/60Hz and 4K 100/120Hz 4:4:4 up to 4K/30p (Marvell Qdeo)
      Analog To HDMI Upconversion Component**, Composite Component**, Composite
      Component Video Upscaling
      Analog to Analog Video conversion
      Component Video Maximum Resolution1080p
      isf Certified Calibration Control
      CONNECTIVITY Denon AVC-X3700H Onkyo TX-NR636
      Wi-Fi
      Bluetooth SBC
      Bluetooth Headphone Transmission
      Works with Amazon Alexa
      Google Assistant
      Chromecast Built-In
      Apple Siri
      Works with SonoS
      HEOS
      DTS Play-Fi
      MHL Input Front HDMI
      DLNA 1.5
      AirPlay AirPlay 2 AirPlay via optional Onkyo RI Dock DS-A5 (sold separately)
      Apple Product Connection iPod, iPhone and iPad iPod and iPhone via optional Onkyo RI Dock DS-A5 (sold separately)
      Remote App Denon 2016 AVR Remote App for iOS and Android devices and Kindle FireOnkyo Remote App for iPod touch/iPhone and Android-Powered Devices
      InstaPrevue Input Source Prevue
      TERMINALS Denon AVC-X3700H Onkyo TX-NR636
      HDMI Inputs77 (1 front)
      HDMI Outputs3 (2 x 8K for MAIN, 1 x 4K for ZONE2)2 (simultaneous)
      8K Inputs1
      USB Input1 Front for USB memory1 (Front)
      USB DC Out Port
      Optical Inputs21
      Optical Outputs
      Coaxial Inputs22
      RCA Line Inputs66
      RCA Line Outputs
      XLR Line Inputs
      Phono Input
      Multi-Channel Input
      RCA Pre-Outs11.20.2
      XLR Pre-outs
      Composite Video Inputs33
      Composite Video Outputs11
      S-Video Inputs
      S-Video Outputs
      Component Video Inputs21
      Component Video Outputs11
      Ethernet
      Ethernet Switch
      PC In
      Front A/V InputsUSBHDMI/MHL, USB
      Speaker A/B assignable
      Headphone Out6.3 mm (1/4")6.3 mm (1/4")
      Detachable Power Cord
      uport
      ZONES Denon AVC-X3700H Onkyo TX-NR636
      Number of Zones22
      Powered Zones 2 2
      Zone 2 OutsHDMI, Component, Pre OutRCA Line Out
      Whole House Mode
      RS-232C Interface
      +12V Trigger Output10
      Remote (IR) Input/Output1 / 10 / 0
      MISCELLANEOUS Denon AVC-X3700H Onkyo TX-NR636
      On-Screen Display Advanced Graphic User Interface Advanced "Home" GUI
      GUI Languages9
      Web Control
      IP Control
      Control4 SDDP
      PreAmp Mode
      Display 1 line
      Remote ControllerRC-1239
      Pre-programmed / Learnable / LCD Display / /
      ONKYO-RI System Control
      RIHD (Remote Interactive Over HDMI)
      Pre-Pro/Learning Remote /
      On Screen Remote Programming
      Bi-directional Remote Setup via GUI
      Activity Based Remote
      Smart Grid-Ready
      Denon Link HD
      Setup Assistant
      Quick Select plus / Quick Select /
      RADIO Denon AVC-X3700H Onkyo TX-NR636
      Analog Tuner FM/AM with RDS
      Presets40
      Digital Radio
      Internet Radio TuneIn TuneIn
      Pandora
      Spotify
      Tidal
      Deezer
      Napster
      SiriusXM
      CONSTRUCTION Denon AVC-X3700H Onkyo TX-NR636
      Front Panelnot Metal
      Solid Aluminum Front
      Speaker Terminals119
      Large Speaker Terminals119
      Color-Coded Speaker Terminals
      Transparent High-Grade Speaker Terminals
      High Grade Audio Components
      Gold plated RCA terminals
      POWER Denon AVC-X3700H Onkyo TX-NR636
      Power SupplyAC 230 V, 50/60 HzAC 220-240 V, 50/60 Hz
      Independent Power Supply2
      H.C.P.S. (High Current Power Supply) Massive High Power Transformer
      Toroidal Transformer
      Power Consumption660 W630 W
      No Sound PowerECO On/Off: 45 W/80 W80 W
      Standby Power0.1 W0.2 W
      Capacitor Bank8,200 µF
      ECO Mode / Hybrid Standby Function
      Auto Power off
      PHYSICAL Denon AVC-X3700H Onkyo TX-NR636
      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")
      435 mm x 173.5 mm x 329 mm
      17-1/8" x 6-13/16" x 12-15/16"
      Dimensions of Package (W x H x D)519 mm x 242 mm x 478 mm
      21.2" x 10.1" x 19.0"
      Weight12.5 kg (27.6 lbs)10.5 kg (23.1 lbs)
      Weight of Package15.1 kg (33.3 lbs)
      SPECIFICATIONS Denon AVC-X3700H Onkyo TX-NR636
      Power Output (8 Ω, 20 Hz - 20 kHz, 2 channel driven, FTC)105 W (0.08% THD)95 W (0.08% THD)
      Power Output (6 Ω, 20 Hz - 20 kHz, 1 channel driven, JEITA)130 W (0.08% THD)
      Power Output (6 Ω, 1 kHz, 2 channel driven, FTC)135 W (0.7% THD)115 W (0.7% THD)
      Maximum Effective Power Output (6 Ω, 1 kHz, 1 channel driven, JEITA or IEC)175 W
      Rated Power Output (6 Ω, 1 kHz, 1 channel driven, IEC)180 W (1% THD)160 W (1% THD)
      Dynamic Power per Channel (3 Ω, Front)240 W
      Dynamic Power per Channel (4 Ω, Front)210 W
      Dynamic Power per Channel (8 Ω, Front)120 W
      THD0.08% (20 Hz - 20 kHz, Half power)
      THD (Digital)0.008% (1 kHz, at 0 dB)
      Analog Distortion0.008% (20 Hz-20 kHz, Direct mode)
      Phono Distortion0.03% (1 kHz, 3 V)
      Damping Factor60 (Front, 1 kHz, 8 Ω)
      Input Sensitivity and Impedance (Line)200 mV/47 kΩ200 mV/47 kΩ (Line)
      Input Sensitivity and Impedance (Phono MM)2.5 mV/47 kΩ
      Rated Lineout Level and Impedance1.2 V200 mV/2.2 kΩ
      Rated Output digital2 V (at 0 dB playback)
      Maximum Lineout Level and Impedance2 V/2.2 kΩ
      Phono Overload70 mV (MM, 1kHz, 0.5% Direct)
      S/N Ratio (Line, IHF-A)100 dB106 dB
      S/N Ratio (Phono MM, IHF-A)74 dB80 dB
      S/N Ratio (digital)102 dB
      Dynamic Range (digital)100 dB
      Phono RIAA Deviation±1 dB (20 Hz to 20 kHz)
      Frequency Response (Analog In)+1/-3 dB (10 Hz to 100 kHz, Direct mode)5 Hz - 100 kHz/+1 dB, -3 dB (Direct Mode)
      DSD Sampling Rates via HDMI2.8 MHz2.8 MHz, 5.6 MHz
      DSD Sampling Rates via USB5.6 MHz, 2.8 MHz2.8 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 (Component Y)
      0.7 Vp-p/75 Ω (Component PB/CB, PR/CR)
      1 Vp-p/75 Ω (Composite)
      Video Frequency Response5 Hz to 60 MHz, 0 dB/-3 dB (Component)5 Hz - 100 MHz/+0 dB, -3 dB (Component)
      Ethernet Standard100BASE-TX10BASE-T/100BASE-TX
      Wi-Fi StandardIEEE 802.11 a/b/g/nIEEE 802.11 b/g/n
      Wi-Fi Terminal Frequency5 GHz, 2.4 GHz2.4 GHz
      Bluetooth Version4․22․1 + EDR
      Bluetooth Frequency2.4 GHz2.4 GHz
      USB TerminalUSB2.0 5V, 1 A
      FM Frequency87.5 MHz - 108.0 MHz
      AM Frequency522/530 kHz - 1611/1710 kHz
      Warranty3 Years2 Years

      * - 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.