Onkyo TX-NR525 vs Onkyo TX-NR515

      Onkyo TX-NR525

      Onkyo TX-NR515
      70
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      72
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      USA Taiwan Europe and Australia
      Asia
      Others
      USA
      Taiwan Europe and Australia Others
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      Highlights

      • 5.2 Channels
      • 5.1 Channel Processing
      • 80 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven)
      • 4K/30Hz Passthrough
      • Bluetooth, Ethernet

      Highlights

      • 7.2 Channels
      • 7.1 Channel Processing
      • 80 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven)
      • 4K/30Hz Upscaling
      • Ethernet

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

      Table of Contents
      1. Overview
      2. Pros and Cons
      3. Advantage of Onkyo TX-NR525
      4. Advantage of Onkyo TX-NR515
      5. Common Strengths and Weaknesses
      6. Amplifier
      7. Speaker Configurations
      8. Immersive Audio Formats
      9. HDMI
      10. Inputs and Outputs
      11. Evaluations
      12. Specifications

      1. Overview

      Here we are comparing Onkyo TX-NR525 to Onkyo TX-NR515 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 Onkyo TX-NR525 has 5 channel and the Onkyo TX-NR515 has 7 channel and equally powerful amplifiers.


      Onkyo TX-NR525 Onkyo TX-NR515

      Onkyo TX-NR525 was introduced in 2013. 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 4K/30Hz video signal.

      Onkyo TX-NR515 was introduced in 2012. It is equipped with 7 channel amplifier with 80 W (8 Ω, 20 Hz - 20 kHz and 2 channel driven) power per channel and is capable of 7.1 maximum channel processing. It , passes 1080/60p and upscales up to 4K/30p (Marvell Qdeo) video signal.

      We evaluated Onkyo TX-NR525 and Onkyo TX-NR515 and gave them scores of 70 and 72 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.

      Onkyo TX-NR525

      Onkyo TX-NR515

      Amplifier
      73
      Amplifier
      75
      Audio Features
      70
      Audio Features
      70
      Video Features
      59
      Video Features
      58
      Connectivity
      75
      Connectivity
      76
      Zones
      64
      Zones
      77
      Radio
      88
      Radio
      90
      OVERALL
      70
      OVERALL
      72

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

      2. Pros and Cons

      In this section we present pros and cons of Onkyo TX-NR525 and Onkyo TX-NR515.

      PROS

      Onkyo TX-NR525

      Onkyo TX-NR515

      •   DSD via HDMI
      •   Auto Speaker Calibration System with Mic.
      •   New HDCP Version
      •   Bluetooth
      •   USB Input
      •   Many RCA Line Inputs
      •   Composite Video Inputs
      •   Component Video Inputs
      •   Ethernet
      •   Analog Tuner
      •   Pandora
      •   Spotify
      •   DSD via HDMI
      •   Auto Speaker Calibration System with Mic.
      •   New HDCP Version
      •   Analog To HDMI Upconversion
      •   8 HDMI Inputs
      •   USB Input
      •   Composite Video Inputs
      •   Component Video Inputs
      •   Ethernet
      •   Analog Tuner
      •   Pandora
      •   Spotify

      CONS

      Onkyo TX-NR525

      Onkyo TX-NR515

      •   Few Channels - 5.2
      •   Low Power Output - 80 W
      •   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 HDR10
      •   No HDR10+
      •   No Dolby Vision
      •   No eARC
      •   No 8K Passthrough
      •   Does not Work with Amazon Alexa
      •   1 HDMI Outputs
      •   0 8K Input
      •   No Phono Input
      •   No RCA Pre-Outs
      •   No Digital Radio
      •   No Tidal
      •   Low Power Output - 80 W
      •   No Front Wide Channel Support
      •   No Dolby Atmos
      •   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
      •   No Bluetooth
      •   Does not Work with Amazon Alexa
      •   0 8K Input
      •   No Phono Input
      •   No RCA Pre-Outs
      •   No Digital Radio
      •   No Tidal


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

      AVERAGE

      Onkyo TX-NR525

      Onkyo TX-NR515

      •   Wi-Fi
      •   6 HDMI Inputs
      •   2 Zones
      •   7.2 Channels
      •   7.1 Channel Processing
      •   Wi-Fi
      •   2 HDMI Outputs
      •   RCA Line Inputs
      •   2 Zones

      3. Advantage of Onkyo TX-NR525

      This section shows those features and specifications which are the reason to choose Onkyo TX-NR525 over Onkyo TX-NR515.

      Check the Price

      Onkyo TX-NR525
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      Onkyo TX-NR525 vs Onkyo TX-NR515
      Music Playback via USB FLAC, WAV, Apple Lossless, WMA, WMA Lossless, Ogg, MP3, DSD, AAC, LPCM, Dolby TruHD vs FLAC, WAV, WMA, WMA Lossless, Ogg, MP3, LPCM, AAC
      High Resolution Audio Formats via USB FLAC, WAV, WMA Lossless, Apple Lossless, DSD, AAC, LPCM vs FLAC, WAV, WMA Lossless, LPCM, AAC
      DSD via USB 2-ch Input vs
      Phase-Matching Bass Boost vs
      Pure Audio Mode vs
      More Advanced Auto Speaker Calibration System Audyssey MultEQ vs Audyssey 2EQ
      Video Signal Passthrough up to 4K/30p vs up to 1080p
      Bluetooth via Front USB (optional UBT-1 adapter sold separately) vs
      More RCA Line Inputs 6 (1 front) vs 5
      More Component Video Inputs 2 vs 1
      Smart Grid-Ready vs
      Analog Tuner FM/AM with RDS vs FM/AM

      4. Advantage of Onkyo TX-NR515

      This section shows those features and specifications which are the reason to choose Onkyo TX-NR515 over Onkyo TX-NR525.

      Check the Price

      Onkyo TX-NR515
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      Onkyo TX-NR525 vs Onkyo TX-NR515
      More Channels 5.2 vs 7.2
      Bi-amp capability vs
      More Channel Processing 5.1 vs 7.1
      Dolby Pro Logic PLII vs PLIIz
      Dolby Digital EX vs
      DTS-ES vs Discrete 6.1, Matrix 6.1
      Video Signal Upscaling vs up to 4K/30p (Marvell Qdeo)
      Analog To HDMI Upconversion vs Component**, Composite
      MHL Input vs Front HDMI
      More HDMI Inputs 6 vs 8 (1 front)
      More HDMI Outputs 1 vs 2 (simultaneous)
      More Optical Inputs 1 vs 2
      Front A/V Inputs L/R Audio, Composite, USB vs HDMI/MHL, USB, Composite Video
      More Powered Zones vs 2
      On-Screen Display vs Advanced "Home" GUI
      On Screen Remote Programming vs
      SiriusXM vs
      More Speaker Terminals 5 vs 9
      More Large Speaker Terminals 5 vs 7
      Higher Power Output (6 Ω, 1 kHz, 2 channel driven, FTC) 100 W (0.7% THD) vs 125 W (0.1% THD)
      Lower THD 0.7% (20 Hz - 20 kHz, Half power) vs 0.08% (20 Hz - 20 kHz, half power)

      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 Onkyo TX-NR525 Onkyo TX-NR515
        DSD via HDMI 2-ch/Multi-ch Input 2-ch/Multi-ch Input
        Auto Speaker Calibration System with Mic. Audyssey MultEQ Audyssey 2EQ
        New HDCP Version2.22.2
        USB Input1 Front (for iPod/iPhone) and 1 Rear1 Front (for iPod/iPhone) and 1 Rear
        Composite Video Inputs5 (1 front)5 (1 front)
        Component Video Inputs21
        Ethernet
        Analog Tuner FM/AM with RDS FM/AM
        Pandora
        Spotify
      WEAKNESSES Onkyo TX-NR525 Onkyo TX-NR515
        Low Power Output80 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven)80 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven)
        No Dolby Atmos
        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 Passthroughup to 4K/30pup to 1080p
        Does not Work with Amazon Alexa
        Few 8K Inputs
        No Phono Input
        No RCA Pre-Outs0.20.2
        No Digital Radio
        No Tidal

      6. Amplifier

      Onkyo TX-NR525 Onkyo TX-NR515

      5 channel Amplifier: Onkyo TX-NR525 features 5 channel power amplifier. It is rated at 80 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven).

      7 channel Amplifier: Onkyo TX-NR515 features 7 channel power amplifier. It is rated at 80 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven).
      • WRAT (Wide Range Amp Technology): Onkyo TX-NR525 and Onkyo TX-NR515 feature 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 Onkyo TX-NR525 Onkyo TX-NR515
      Channels5.27.2
      Power Output80 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven)80 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven)
      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
      PUSH-PULL Design
      Independent Block Construction (Amp/Preprocessor)
      Bi-amp Capability
      BTL (Bridged Transless or Bridging)

      Check the Price

      Onkyo TX-NR525
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      7. Speaker Configurations

      Onkyo TX-NR525's and Onkyo TX-NR515's amplifiers can be assigned for different speaker configurations.

      • Configurations: Available configurations are:
      • Onkyo TX-NR525: 5.2 with internal amplifier.
      • Onkyo TX-NR515: 5.2, 7.2 with internal amplifier.
      • Bi-Amp: Onkyo TX-NR515 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.

      Check the Price

      Onkyo TX-NR515
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      8. HDMI

      Onkyo TX-NR525 comes with 6 HDMI inputs. It has 1 output.

      Onkyo TX-NR515 comes with 8 HDMI inputs. It has 2 outputs which work parallelly and output the same signal.

      • 4K/30Hz Passthrough on Onkyo TX-NR525: All inputs pass up to 4K/30p video signal.
        1080/60p Passthrough on Onkyo TX-NR515: All inputs pass up to 1080p video signal.
      • 4K Upscaling on Onkyo TX-NR515: It can upscale up to 4K/30p (Marvell Qdeo) from HDMI and analog sources.
      • Analog To HDMI Upconversion: Onkyo TX-NR515 supports 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.
      • HDCP 2.2 Copy Protection: Both receivers are 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.


      VIDEO FEATURES Onkyo TX-NR525 Onkyo TX-NR515
      HDR10
      HDR10+
      Dynamic HDR
      BT.2020 color space
      Dolby Vision
      HLG (Hybrid Log Gamma)
      HDBaseT Compatible
      Enhanced Audio Return Channel (eARC)
      HDCP Version2.22.2
      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/30pup to 1080p
      Video Signal Upscaling up to 4K/30p (Marvell Qdeo)

      Check the Price

      Onkyo TX-NR525
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      9. Inputs and Outputs

      Audio

      • Analog Line Inputs: There are 6 pair of line inputs on Onkyo TX-NR525 and 5 pair of line inputs on Onkyo TX-NR515 for connecting sources with analog outputs.
      • Digital Inputs: 1 optical input and 2 coaxial inputs are available on Onkyo TX-NR525 and 2 optical inputs and 2 coaxial inputs are available on Onkyo TX-NR515 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:
      • Onkyo TX-NR525
        Inputs:         6   Outputs: 1
        8K Inputs: 0.
      • Onkyo TX-NR515
        Inputs:         8 (1 front)   Outputs: 2 (simultaneous)
        8K Inputs: 0.
      • Composite Video: Connect you VCR, Laserdisc player and other old video equipment with composite video cables.
      • Onkyo TX-NR525
        Inputs:         5   Outputs: 1.
      • Onkyo TX-NR515
        Inputs:         5   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-NR515 supports up to 1080p resolution on Component video connectors.
      • Onkyo TX-NR525
        Inputs:         2   Outputs: 1.
      • Onkyo TX-NR515
        Inputs:         1   Outputs: 1.

      Front A/V Inputs

      • Onkyo TX-NR525: L/R Audio, Composite, USB
      • Onkyo TX-NR515: HDMI/MHL, USB, Composite Video

      Onkyo TX-NR525

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      Onkyo TX-NR515

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      TERMINALS Onkyo TX-NR525 Onkyo TX-NR515
      HDMI Inputs68 (1 front)
      HDMI Outputs12 (simultaneous)
      8K Inputs
      USB Input1 Front (for iPod/iPhone) and 1 Rear1 Front (for iPod/iPhone) and 1 Rear
      USB DC Out Port
      Optical Inputs12
      Optical Outputs
      Coaxial Inputs22
      RCA Line Inputs6 (1 front)5
      RCA Line Outputs
      XLR Line Inputs
      Phono Input
      Multi-Channel Input
      RCA Pre-Outs0.20.2
      XLR Pre-outs
      Composite Video Inputs5 (1 front)5 (1 front)
      Composite Video Outputs11
      S-Video Inputs
      S-Video Outputs
      Component Video Inputs21
      Component Video Outputs11

      Check the Price

      Onkyo TX-NR515
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      10. Evaluations

      We evaluated Onkyo TX-NR525 and Onkyo TX-NR515 and gave them scores of 70 and 72 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.


      Onkyo TX-NR525

      Onkyo TX-NR515

      OVERALL
      70
      OVERALL
      72

      Amplifier

      GOOD
      73
      •   Few Channels - 5.2
      •   Low Power Output - 80 W
      GOOD
      75
      •   7.2 Channels
      •   Low Power Output - 80 W

      Audio Features

      GOOD
      70
      •   Few Channels - 5.2
      •   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
      •   DSD via HDMI
      GOOD
      70
      •   7.2 Channels
      •   No Front Wide Channel Support
      •   7.1 Channel Processing
      •   No 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

      AVERAGE
      59
      •   No HDR10
      •   No HDR10+
      •   No Dolby Vision
      •   No 8K Passthrough
      AVERAGE
      58
      •   No HDR10
      •   No HDR10+
      •   No Dolby Vision
      •   No 8K Passthrough
      •   Analog To HDMI Upconversion

      Connectivity

      GOOD
      75
      •   No eARC
      •   New HDCP Version
      •   Wi-Fi
      •   Bluetooth
      •   Does not Work with Amazon Alexa
      •   6 HDMI Inputs
      •   1 HDMI Outputs
      •   0 8K Input
      •   USB Input
      •   Many RCA Line Inputs
      •   No Phono Input
      •   No RCA Pre-Outs
      •   Composite Video Inputs
      •   Component Video Inputs
      •   Ethernet
      GOOD
      76
      •   No eARC
      •   New HDCP Version
      •   Wi-Fi
      •   No Bluetooth
      •   Does not Work with Amazon Alexa
      •   8 HDMI Inputs
      •   2 HDMI Outputs
      •   0 8K Input
      •   USB Input
      •   RCA Line Inputs
      •   No Phono Input
      •   No RCA Pre-Outs
      •   Composite Video Inputs
      •   Component Video Inputs
      •   Ethernet

      Zones

      AVERAGE
      64
      •   2 Zones
      GOOD
      77
      •   2 Zones

      Radio

      EXCELLENT
      88
      •   Analog Tuner
      •   Pandora
      •   Spotify
      •   No Tidal
      EXCELLENT
      90
      •   Analog Tuner
      •   Pandora
      •   Spotify
      •   No Tidal

      11. Specifications

      GENERAL Onkyo TX-NR525 Onkyo TX-NR515
      BrandOnkyoOnkyo
      ModelTX-NR525TX-NR515
      TypeA/V ReceiverA/V Receiver
      CountryAsiaUSA
      Release Year20132012
      PredecessorOnkyo TX-NR515 Onkyo TX-NR509
      SuccessorOnkyo TX-NR535 Onkyo TX-NR525
      AMPLIFIER Onkyo TX-NR525 Onkyo TX-NR515
      Channels5.27.2
      Power Output80 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven)80 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven)
      Front Wide Channel Support
      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
      PUSH-PULL Design
      Independent Block Construction (Amp/Preprocessor)
      Bi-amp Capability
      BTL (Bridged Transless or Bridging)
      AUDIO FEATURES Onkyo TX-NR525 Onkyo TX-NR515
      Digital Processing Crossover Network
      Digital Signal Processing (DSP) EngineAdvanced 32-Bit Processing DSP ChipAdvanced 32-Bit Processing DSP Chip
      DACBurr-BrownBurr-Brown
      DAC Specs192 kHz/24 Bit192 kHz/24 Bit
      Maximum Channel Processing5.17.1
      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 PLIIz
      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 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
      Music Playback via USBFLAC, WAV, Apple Lossless, WMA, WMA Lossless, Ogg, MP3, DSD, AAC, LPCM, Dolby TruHDFLAC, WAV, WMA, WMA Lossless, Ogg, MP3, LPCM, AAC
      High Resolution Music Playback via USB and/or Network up to 192 kHz up to 192 kHz
      High Resolution Audio Formats via USBFLAC, WAV, WMA Lossless, Apple Lossless, DSD, AAC, LPCMFLAC, WAV, WMA Lossless, LPCM, AAC
      Gapless Playback
      DSD via HDMI 2-ch/Multi-ch Input 2-ch/Multi-ch Input
      DSD via USB 2-ch Input
      DSD to PCM Converter
      USB DAC
      Jitter Reduction PLL (Phase Locked Loop) Jitter-Cleaning Circuit Technology for S/PDIF Audio 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 Front L/R Channels
      Compressed Music Enhancer Advanced Music Optimizer Advanced Music Optimizer
      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
      Direct Mode
      Pure Audio Mode
      Pure Direct Analog Path Mode
      Virtual Speakers T-D (Theater-Dimensional) T-D (Theater-Dimensional)
      Independent Subwoofer Outputs
      CALIBRATION Onkyo TX-NR525 Onkyo TX-NR515
      Auto Speaker Calibration System with Mic. Audyssey MultEQ Audyssey 2EQ
      Audyssey App Support
      VIDEO FEATURES Onkyo TX-NR525 Onkyo TX-NR515
      HDR10
      HDR10+
      Dynamic HDR
      BT.2020 color space
      Dolby Vision
      HLG (Hybrid Log Gamma)
      HDBaseT Compatible
      Enhanced Audio Return Channel (eARC)
      HDCP Version2.22.2
      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/30pup to 1080p
      Video Signal Upscaling up to 4K/30p (Marvell Qdeo)
      Analog To HDMI Upconversion Component**, Composite
      Component Video Upscaling
      Analog to Analog Video conversion
      Component Video Maximum Resolution1080p
      isf Certified Calibration Control
      CONNECTIVITY Onkyo TX-NR525 Onkyo TX-NR515
      Wi-Fi via Front USB (optional UWF-1 sold separately) via Front USB (optional UWF-1 sold separately)
      Bluetooth via Front USB (optional UBT-1 adapter sold separately)
      Works with Amazon Alexa
      Chromecast Built-In
      Works with SonoS
      DTS Play-Fi
      MHL Input Front HDMI
      DLNA 1.5
      AirPlay
      Apple Product Connection iPod and iPhone via front USB iPod and iPhone via front USB
      Remote App iPod touch/iPhone and Android-Powered Devices iPod touch/iPhone and Android-Powered Devices
      InstaPrevue Input Source Prevue
      TERMINALS Onkyo TX-NR525 Onkyo TX-NR515
      HDMI Inputs68 (1 front)
      HDMI Outputs12 (simultaneous)
      8K Inputs
      USB Input1 Front (for iPod/iPhone) and 1 Rear1 Front (for iPod/iPhone) and 1 Rear
      USB DC Out Port
      Optical Inputs12
      Optical Outputs
      Coaxial Inputs22
      RCA Line Inputs6 (1 front)5
      RCA Line Outputs
      XLR Line Inputs
      Phono Input
      Multi-Channel Input
      RCA Pre-Outs0.20.2
      XLR Pre-outs
      Composite Video Inputs5 (1 front)5 (1 front)
      Composite Video Outputs11
      S-Video Inputs
      S-Video Outputs
      Component Video Inputs21
      Component Video Outputs11
      Ethernet
      Ethernet Switch
      PC In
      Front A/V InputsL/R Audio, Composite, USBHDMI/MHL, USB, Composite Video
      Speaker A/B
      Headphone Out6.3 mm (1/4")6.3 mm (1/4")
      Detachable Power Cord
      uport
      ZONES Onkyo TX-NR525 Onkyo TX-NR515
      Number of Zones22
      Powered Zones 2
      Zone 2 OutsRCA Line OutRCA Line Out
      Whole House Mode
      RS-232C Interface
      +12V Trigger Output0
      Remote (IR) Input/Output0 / 0
      MISCELLANEOUS Onkyo TX-NR525 Onkyo TX-NR515
      On-Screen Display Advanced "Home" GUI
      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
      RADIO Onkyo TX-NR525 Onkyo TX-NR515
      Analog Tuner FM/AM with RDS FM/AM
      Presets4040
      Digital Radio
      Internet Radio TuneIn vTuner
      Pandora
      Spotify
      Tidal
      Deezer
      Napster
      SiriusXM
      CONSTRUCTION Onkyo TX-NR525 Onkyo TX-NR515
      Solid Aluminum Front
      Speaker Terminals59
      Large Speaker Terminals57
      Color-Coded Speaker Terminals
      Transparent High-Grade Speaker Terminals
      Gold plated RCA terminals
      POWER Onkyo TX-NR525 Onkyo TX-NR515
      Power SupplyAC 220-240 V, 50/60 HzAC 120 V, 60 Hz
      Independent Power Supply
      H.C.P.S. (High Current Power Supply) Massive High Power Transformer Massive High Power Transformer
      Toroidal Transformer
      Power Consumption420 W5 A
      No Sound Power60 W (230 V)/65 W (240 V)65 W
      Standby Power0.2 W0.15 W
      ECO Mode / Hybrid Standby Function
      PHYSICAL Onkyo TX-NR525 Onkyo TX-NR515
      Dimensions (W x H x D)435 mm x 173.5 mm x 328 mm
      17-1/8" x 6-13/16" x 12-15/16"      		435 mm x 173.5 mm x 328 mm
      17-1/8" x 6-13/16" x 12-15/16"
      Weight9.0 kg (19.8 lbs)9.0 kg (19.8 lbs)
      SPECIFICATIONS Onkyo TX-NR525 Onkyo TX-NR515
      Power Output (8 Ω, 20 Hz - 20 kHz, 2 channel driven, FTC)80 W (0.7% THD)80 W (0.7% THD)
      Power Output (6 Ω, 1 kHz, 2 channel driven)100 W (0.7% THD)
      Power Output (6 Ω, 1 kHz, 2 channel driven, FTC)100 W (0.7% THD)125 W (0.1% THD)
      Maximum Effective Power Output (6 Ω, 1 kHz, 1 channel driven, JEITA or IEC)160 W160 W
      Rated Power Output (6 Ω, 1 kHz, 1 channel driven, IEC)130 W (1% THD)130 W (1% THD)
      Dynamic Power per Channel (3 Ω, Front)180 W180 W
      Dynamic Power per Channel (4 Ω, Front)160 W160 W
      Dynamic Power per Channel (8 Ω, Front)100 W100 W
      THD0.7% (20 Hz - 20 kHz, Half power)0.08% (20 Hz - 20 kHz, half power)
      Damping Factor60 (Front, 1 kHz, 8 Ω)60 (Front, 1 kHz, 8 Ω)
      Input Sensitivity and Impedance (Line)200 mV/47 kΩ (Line)200 mV/47 kΩ (Line)
      Rated Lineout Level and Impedance200 mV/2.2 kΩ200 mV/2.2 kΩ
      Maximum Lineout Level and Impedance2 V/2.2 kΩ2 V/2.2 kΩ
      S/N Ratio (Line, IHF-A)100 dB100 dB
      Frequency Response (Analog In)5 Hz - 100 kHz/+1 dB, -3 dB (DSP bypass)5 Hz - 100 kHz/+1 dB, -3 dB (DSP bypass)
      DSD Sampling Rates via HDMI2.8 MHz2.8 MHz
      DSD Sampling Rates via USB2.8 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 - 100 MHz/+0 dB, -3 dB (Component)5 Hz - 100 MHz/+0 dB, -3 dB (Component)
      Ethernet Standard100BASE-TX100BASE-TX
      FM Frequency87.5 MHz - 108.0 MHz87.5 MHz - 107.9 MHz
      AM Frequency522/530 kHz - 1611/1710 kHz522/530 kHz - 1611/1710 kHz
      Warranty2 Years2 Years

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

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