Pioneer VSX-LX504 vs Pioneer VSX-LX503

      Pioneer VSX-LX504

      Pioneer VSX-LX503
      92
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      91
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      North America
      Europe Australia and Asia
      North America
      Europe Australia and Asia
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      Highlights

      • 9.2 Channels
      • 11.2 Channel Processing
      • 120 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven)
      • Dolby Atmos, DTS:X
      • HDR10, Dolby Vision
      • 4K/60Hz Passthrough, 4K/30Hz Upscaling
      • Wi-Fi, Bluetooth, Ethernet
      • Phono Input

      Highlights

      • 9.2 Channels
      • 11.1 Channel Processing
      • 120 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven)
      • Dolby Atmos, DTS:X
      • HDR10, Dolby Vision
      • 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.

      Table of Contents
      1. Overview
      2. Pros and Cons
      3. Advantage of Pioneer VSX-LX504
      4. Advantage of Pioneer VSX-LX503
      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 Pioneer VSX-LX504 to Pioneer VSX-LX503 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 9 channel and equally powerful amplifiers.


      Pioneer VSX-LX504 Pioneer VSX-LX503

      Pioneer VSX-LX504 was introduced in 2019. It is equipped with 9 channel amplifier with 120 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 4K/60Hz and upscales 1080p to 4K video signal.

      Pioneer VSX-LX503 was introduced in 2018. It is equipped with 9 channel amplifier with 120 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven) power per channel and is capable of 11.1 maximum channel processing. It supports Dolby Atmos and DTS:X, passes 4K/60Hz and upscales 1080p to 4K video signal.

      We evaluated Pioneer VSX-LX504 and Pioneer VSX-LX503 and gave them scores of 92 and 91 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.

      Pioneer VSX-LX504

      Pioneer VSX-LX503

      Amplifier
      91
      Amplifier
      91
      Audio Features
      91
      Audio Features
      89
      Video Features
      95
      Video Features
      95
      Connectivity
      89
      Connectivity
      87
      Zones
      92
      Zones
      92
      Radio
      92
      Radio
      92
      OVERALL
      92
      OVERALL
      91

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

      2. Pros and Cons

      In this section we present pros and cons of Pioneer VSX-LX504 and Pioneer VSX-LX503.

      PROS

      Pioneer VSX-LX504

      Pioneer VSX-LX503

      •   High Power Output - 120 W
      •   11.2 Channel Processing
      •   Dolby Atmos
      •   Dolby Atmos Height Virtualization
      •   DTS:X
      •   IMAX Enhanced
      •   DSD via HDMI
      •   Auto Speaker Calibration System with Mic.
      •   HDR10
      •   Dolby Vision
      •   New HDCP Version
      •   Analog To HDMI Upconversion
      •   Wi-Fi
      •   Bluetooth
      •   Google Assistant
      •   Chromecast Built-In
      •   7 HDMI Inputs
      •   USB Input
      •   Phono Input
      •   RCA Pre-Outs
      •   Composite Video Inputs
      •   Component Video Inputs
      •   Ethernet
      •   3 Zones
      •   Analog Tuner
      •   Pandora
      •   Spotify
      •   Tidal
      •   High Power Output - 120 W
      •   11.1 Channel Processing
      •   Dolby Atmos
      •   DTS:X
      •   DSD via HDMI
      •   Auto Speaker Calibration System with Mic.
      •   HDR10
      •   Dolby Vision
      •   New HDCP Version
      •   Analog To HDMI Upconversion
      •   Wi-Fi
      •   Bluetooth
      •   Chromecast Built-In
      •   7 HDMI Inputs
      •   USB Input
      •   Phono Input
      •   RCA Pre-Outs
      •   Composite Video Inputs
      •   Component Video Inputs
      •   Ethernet
      •   3 Zones
      •   Analog Tuner
      •   Pandora
      •   Spotify
      •   Tidal

      CONS

      Pioneer VSX-LX504

      Pioneer VSX-LX503

      •   No Front Wide Channel Support
      •   No Auro 3D with Auro-Matic Upmixer
      •   No HDR10+
      •   No eARC
      •   No 8K Passthrough
      •   Does not Work with Amazon Alexa
      •   0 8K Input
      •   No Digital Radio
      •   No Front Wide Channel Support
      •   No Dolby Atmos Height Virtualization
      •   No IMAX Enhanced
      •   No Auro 3D with Auro-Matic Upmixer
      •   No HDR10+
      •   No eARC
      •   No 8K Passthrough
      •   Does not Work with Amazon Alexa
      •   0 8K Input
      •   No Digital Radio


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

      AVERAGE

      Pioneer VSX-LX504

      Pioneer VSX-LX503

      •   9.2 Channels
      •   3 HDMI Outputs
      •   RCA Line Inputs
      •   Bluetooth 4․2
      •   9.2 Channels
      •   3 HDMI Outputs
      •   RCA Line Inputs
      •   Bluetooth 4․1 + LE

      3. Advantage of Pioneer VSX-LX504

      This section shows those features and specifications which are the reason to choose Pioneer VSX-LX504 over Pioneer VSX-LX503.

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      Pioneer VSX-LX504
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      Pioneer VSX-LX504 vs Pioneer VSX-LX503
      Dolby Atmos Height Virtualization vs
      IMAX Enhanced vs
      Dialog Enhancement vs
      Auto Phase Control Plus vs
      Standing Wave Control Multi-Point vs
      Newer HDCP Version 2.3 vs 2.2
      AirPlay AirPlay 2 vs AirPlay
      Higher S/N Ratio (Line, IHF-A) 106 dB vs 106 dB
      Higher S/N Ratio (Phono MM, IHF-A) 80 dB vs 80 dB
      Newer Bluetooth Version 4․2 vs 4․1 + LE

      4. Advantage of Pioneer VSX-LX503

      This section shows those features and specifications which are the reason to choose Pioneer VSX-LX503 over Pioneer VSX-LX504.

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      Pioneer VSX-LX503
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      Pioneer VSX-LX504 vs Pioneer VSX-LX503
      Music Playback via USB MP3, WMA, AAC, Apple Lossless, WAV, FLAC, AIFF, DSD vs MP3, WMA, AAC, Apple Lossless, WAV, FLAC, AIFF, DSD, Dolby TrueHD
      High Resolution Audio Formats via USB Apple Lossless, WAV, FLAC, AIFF, AAC, DSD vs Apple Lossless, WAV, FLAC, AIFF, AAC, DSD, Dolby TrueHD
      More Optical Inputs 1 vs 2
      Speaker A/B vs
      Higher Rated Headphone Power Output 85 mW (32 Ω, 1 kHz, 10% THD) vs 85 mW (32 Ω, 1 kHz, 10% THD)
      Higher DSD Sampling Rate via HDMI 2.8 MHz vs 2.8 MHz (2-ch/multi-ch), 5.6 MHz (2-ch)

      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 Pioneer VSX-LX504 Pioneer VSX-LX503
        High Power Output120 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven)120 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven)
        Channel Processing11.211.1
        Dolby Atmos
        DTS:X
        DSD via HDMI 2-ch/Multi-ch Input 2-ch/Multi-ch Input
        Auto Speaker Calibration System with Mic. Advanced MCACC MCACC
        HDR10
        Dolby Vision
        New HDCP Version2.32.2
        Analog To HDMI Upconversion Component**, Composite Component**, Composite
        Wi-Fi
        Bluetooth SBC, AAC SBC, AAC
        Chromecast Built-In
        Many HDMI Inputs7 (1 front)7 (1 front)
        USB Input2 (1 Front)2 (1 Front)
        Phono Input
        RCA Pre-Outs11.2 (barter to Zone 3 out)11.2
        Composite Video Inputs22
        Component Video Inputs11
        Ethernet
        Zones33
        Analog Tuner FM/AM FM/AM
        Pandora
        Spotify
        Tidal
      WEAKNESSES Pioneer VSX-LX504 Pioneer VSX-LX503
        No Front Wide Channel Support
        No Auro 3D with Auro-Matic Upmixer
        No HDR10+
        No eARC
        No 8K Passthroughup to 4K/60p (YCbCr 4:4:4)up to 4K/60p (YCbCr 4:4:4)
        Does not Work with Amazon Alexa
        Few 8K Inputs
        No Digital Radio

      6. Amplifier

      Pioneer VSX-LX504 Pioneer VSX-LX503

      9 channel Direct Energy Amplifier: Pioneer VSX-LX504 features 9 channel power amplifier with Direct Energy design. It is rated at 120 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven) and is able to drive 4 ohm speakers.

      9 channel Direct Energy Amplifier: Pioneer VSX-LX503 features 9 channel power amplifier with Direct Energy design. It is rated at 120 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven) and is able to drive 4 ohm speakers.


        AMPLIFIER Pioneer VSX-LX504 Pioneer VSX-LX503
        Channels9.29.2
        Power Output120 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven)120 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven)
        Front Wide Channel Support
        Amplifier DesignDirect EnergyDirect Energy
        THX™ Certification
        Continuous 6 Ω Rated
        Certified 4 Ω Performance
        Bi-amp Capability

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        Pioneer VSX-LX504
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        7. Speaker Configurations

        Pioneer VSX-LX504's and Pioneer VSX-LX503's amplifiers can be assigned for different speaker configurations.

        • Dolby Atmos Configurations: The following speaker configurations are supported for Dolby Atmos:
        • Pioneer VSX-LX504: 5.2.2, 5.2.4, 7.2.2 with internal amplifier and 7.2.4 with addition of external 2 channel amplifier.
        • Pioneer VSX-LX503: 5.2.2, 5.2.4, 7.2.2 with internal amplifier and 7.2.4 with addition of external 2 channel amplifier.
        • DTS:X Configurations: The following speaker configurations are supported for DTS:X:
        • Pioneer VSX-LX504: 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.
        • Pioneer VSX-LX503: 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.
        • Configurations without height channels: There are also other speaker configurations available which do not include height channels:
        • Pioneer VSX-LX504: 5.2, 7.2 with internal amplifier.
        • Pioneer VSX-LX503: 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

        Pioneer VSX-LX504 and Pioneer VSX-LX503 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: Pioneer VSX-LX504 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

        Pioneer VSX-LX504 and Pioneer VSX-LX503 support DTS:X.

        • DTS Neural:X: Both models feature 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 Dialog Control: Both models have 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

        Pioneer VSX-LX504 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 Pioneer VSX-LX504 Pioneer VSX-LX503
        Dolby Atmos
        Dolby Atmos Height Virtualization
        Dolby Atmos Music
        Dolby TrueHD
        Dolby Digital Plus
        Dolby Surround Upmixer
        Dolby Pro Logic
        Dolby Digital EX
        Surround EX
        DTS:X
        DTS Neural:X
        DTS Virtual:X
        DTS Neo
        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

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        Pioneer VSX-LX503
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        9. HDMI

        Pioneer VSX-LX504 and Pioneer VSX-LX503 come with 7 HDMI inputs. It has 2 outputs - 1 MAIN and 1 SUB/ZONE 2.

        • 4K/60Hz Passthrough: On both receivers all inputs pass up to 4K/60p (YCbCr 4:4:4) video signal.
        • 4K Upscaling: Both receivers can upscale 1080p to 4K 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 both models).
        • HDCP Copy Protection: Pioneer VSX-LX504 is HDCP 2.3 and Pioneer VSX-LX503 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)

        Both receivers support 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.



        VIDEO FEATURES Pioneer VSX-LX504 Pioneer VSX-LX503
        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 4K/60p (YCbCr 4:4:4)up to 4K/60p (YCbCr 4:4:4)
        Video Signal Upscaling 1080p to 4K 1080p to 4K

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        Pioneer VSX-LX504
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        10. Inputs and Outputs

        Audio

        • Phono Input: There is an MM phono input on Pioneer VSX-LX504 and Pioneer VSX-LX503 with built-in phono stage for connecting the moving magnet cartridge output of the turntable directly to the receiver.
        • Analog Pre-Outs: Pioneer VSX-LX504 and Pioneer VSX-LX503 have 11.2 preamplifier outputs which allow you to connect the receivers to the external power amplifiers. 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, both receivers have 11 channel processing but have only 9 channel amplifiers, so they need external amplifiers connected to the analog pre-outs in order to reach their maximum speaker configurations.
        • Analog Line Inputs: There are 4 pair of line inputs on both receivers for connecting sources with analog outputs.
        • Digital Inputs: 1 optical input and 1 coaxial input are available on Pioneer VSX-LX504 and 2 optical inputs and 1 coaxial input are available on Pioneer VSX-LX503 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:
        • Pioneer VSX-LX504
          Inputs:           7 (1 front)   Outputs: 2 (1 MAIN, 1 SUB/ZONE 2)
          8K Inputs: 0.
        • Pioneer VSX-LX503
          Inputs:           7 (1 front)   Outputs: 2 (1 MAIN, 1 SUB/ZONE 2)
          8K Inputs: 0.
        • Composite Video: Connect you VCR, Laserdisc player and other old video equipment with composite video cables.
        • Pioneer VSX-LX504
          Inputs:           2   Outputs: 0.
        • Pioneer VSX-LX503
          Inputs:           2   Outputs: 0.
        • 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. Both receivers support up to 480i/576i resolution on Component video connectors.
        • Pioneer VSX-LX504
          Inputs:           1   Outputs: 0.
        • Pioneer VSX-LX503
          Inputs:           1   Outputs: 0.

        Front A/V Inputs

        • Pioneer VSX-LX504: HDMI, USB
        • Pioneer VSX-LX503: HDMI, USB

        Pioneer VSX-LX504

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        Pioneer VSX-LX503

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        TERMINALS Pioneer VSX-LX504 Pioneer VSX-LX503
        HDMI Inputs7 (1 front)7 (1 front)
        HDMI Outputs2 (1 MAIN, 1 SUB/ZONE 2)2 (1 MAIN, 1 SUB/ZONE 2)
        8K Inputs
        USB Input2 (1 Front)2 (1 Front)
        USB DC Out Port
        Optical Inputs12
        Optical Outputs
        Coaxial Inputs11
        RCA Line Inputs44
        RCA Line Outputs
        XLR Line Inputs
        Phono Input
        Multi-Channel Input
        RCA Pre-Outs11.2 (barter to Zone 3 out)11.2
        XLR Pre-outs
        Composite Video Inputs22
        Composite Video Outputs
        S-Video Inputs
        S-Video Outputs
        Component Video Inputs11
        Component Video Outputs

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        Pioneer VSX-LX503
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        11. Evaluations

        We evaluated Pioneer VSX-LX504 and Pioneer VSX-LX503 and gave them scores of 92 and 91 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.


        Pioneer VSX-LX504

        Pioneer VSX-LX503

        OVERALL
        92
        OVERALL
        91

        Amplifier

        EXCELLENT
        91
        •   9.2 Channels
        •   High Power Output - 120 W
        EXCELLENT
        91
        •   9.2 Channels
        •   High Power Output - 120 W

        Audio Features

        EXCELLENT
        91
        •   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
        EXCELLENT
        89
        •   9.2 Channels
        •   No Front Wide Channel Support
        •   11.1 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

        EXCELLENT
        95
        •   HDR10
        •   No HDR10+
        •   Dolby Vision
        •   No 8K Passthrough
        •   Analog To HDMI Upconversion
        EXCELLENT
        95
        •   HDR10
        •   No HDR10+
        •   Dolby Vision
        •   No 8K Passthrough
        •   Analog To HDMI Upconversion

        Connectivity

        EXCELLENT
        89
        •   No eARC
        •   New HDCP Version
        •   Wi-Fi
        •   Bluetooth
        •   Does not Work with Amazon Alexa
        •   Google Assistant
        •   Chromecast Built-In
        •   7 HDMI Inputs
        •   3 HDMI Outputs
        •   0 8K Input
        •   USB Input
        •   RCA Line Inputs
        •   Phono Input
        •   RCA Pre-Outs
        •   Composite Video Inputs
        •   Component Video Inputs
        •   Ethernet
        •   Bluetooth 4․2
        EXCELLENT
        87
        •   No eARC
        •   New HDCP Version
        •   Wi-Fi
        •   Bluetooth
        •   Does not Work with Amazon Alexa
        •   Chromecast Built-In
        •   7 HDMI Inputs
        •   3 HDMI Outputs
        •   0 8K Input
        •   USB Input
        •   RCA Line Inputs
        •   Phono Input
        •   RCA Pre-Outs
        •   Composite Video Inputs
        •   Component Video Inputs
        •   Ethernet
        •   Bluetooth 4․1 + LE

        Zones

        EXCELLENT
        92
        •   3 Zones
        EXCELLENT
        92
        •   3 Zones

        Radio

        EXCELLENT
        92
        •   Analog Tuner
        •   Pandora
        •   Spotify
        •   Tidal
        EXCELLENT
        92
        •   Analog Tuner
        •   Pandora
        •   Spotify
        •   Tidal

        12. Specifications

        GENERAL Pioneer VSX-LX504 Pioneer VSX-LX503
        BrandPioneerPioneer
        SeriesEliteElite
        ModelVSX-LX504VSX-LX503
        TypeA/V ReceiverA/V Receiver
        CountryNorth AmericaNorth America
        Release Year20192018
        PredecessorPioneer VSX-LX503 Pioneer SC-LX502
        SuccessorPioneer VSX-LX505 Pioneer VSX-LX504
        AMPLIFIER Pioneer VSX-LX504 Pioneer VSX-LX503
        Channels9.29.2
        Power Output120 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven)120 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven)
        Front Wide Channel Support
        Amplifier DesignDirect EnergyDirect Energy
        THX™ Certification
        Continuous 6 Ω Rated
        Certified 4 Ω Performance
        Bi-amp Capability
        AUDIO FEATURES Pioneer VSX-LX504 Pioneer VSX-LX503
        Digital Signal Processing (DSP) EngineDigital Quad-Core 32-bit DSP (Cirrus Logic) + Aureus™ Floating-Point DSP (TI)Digital Quad-Core 32-bit DSP (Cirrus Logic) + Aureus™ Floating-Point DSP (TI)
        DACAKM AK4458 & TI PCM5101AKM AK4458 & TI PCM5101
        DAC Specs384 kHz/32 Bit384 kHz/32 Bit
        Maximum Channel Processing11.211.1
        Air Studios Monitor Certification
        Dolby Atmos
        Dolby Atmos Height Virtualization
        Dolby Atmos Music
        Dolby TrueHD
        Dolby Digital Plus
        Dolby Surround Upmixer
        Dolby Pro Logic
        Dolby Digital EX
        Surround EX
        DTS:X
        DTS Neural:X
        DTS Virtual:X
        DTS Neo
        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, AAC, Apple Lossless, WAV, FLAC, LPCM, AIFF, DSD
        Music Playback via USBMP3, WMA, AAC, Apple Lossless, WAV, FLAC, AIFF, DSDMP3, WMA, AAC, Apple Lossless, WAV, FLAC, AIFF, DSD, Dolby TrueHD
        High Resolution Music Playback via USB and/or Network 64, 88.2, 96, 176.4, 192 kHz/24 bit 64, 88.2, 96, 176.4, 192 kHz/24 bit
        High Resolution Audio Formats via USBApple Lossless, WAV, FLAC, AIFF, AAC, DSDApple Lossless, WAV, FLAC, AIFF, AAC, DSD, Dolby TrueHD
        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
        DTS Dialogue Control
        Dialog Enhancement
        Dialog normalization
        Dialogue Lift
        Sound Retriever Advanced Advanced
        Sound Retriever AIR
        Digital noise Reduction
        Tone Control All Channels All Channels
        Compressed Music Enhancer Advanced Sound Retriever Advanced Sound Retriever
        High-resolution Music Enhancer
        Audyssey Dynamic EQ
        Audyssey Dynamic Volume
        Audyssey LFC
        Audyssey Sub EQ HT
        Audyssey DSX
        Direct Mode
        Pure Direct Mode
        Auto Surround
        Optimum Surround
        Advanced Surround10 + 1Multiple
        Wide Surround
        Front Stage Surround Advance
        Headphone Surround
        Virtual Speakers
        Virtual Depth
        Independent Subwoofer Outputs
        CALIBRATION Pioneer VSX-LX504 Pioneer VSX-LX503
        Auto Speaker Calibration System with Mic. Advanced MCACC MCACC
        Manual MCACC
        MCACC Memory11
        Reflex Optimizer
        Phase Control
        Auto Phase Control Plus
        Full Band Phase Control
        Standing Wave Control Multi-Point
        EQ Bands9-Band
        Symmetric EQ
        Distance Adjustment0.1 feet
        Precision Distance
        Polarity Check
        Auto Subwoofer Crossover
        VIDEO FEATURES Pioneer VSX-LX504 Pioneer VSX-LX503
        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 4K/60p (YCbCr 4:4:4)up to 4K/60p (YCbCr 4:4:4)
        Video Signal Upscaling 1080p to 4K 1080p to 4K
        Analog To HDMI Upconversion Component**, Composite Component**, Composite
        Component Video Upscaling
        Analog to Analog Video conversion
        Component Video Maximum Resolution480i/576i480i/576i
        Stream Smoother
        Pure Cinema
        Video Parameter Adjustments
        Super Resolution
        isf Certified Calibration Control
        CONNECTIVITY Pioneer VSX-LX504 Pioneer VSX-LX503
        Wi-Fi
        Bluetooth SBC, AAC SBC, AAC
        Works with Amazon Alexa
        Google Assistant
        Chromecast Built-In
        Apple Siri
        Works with SonoS
        DTS Play-Fi
        MHL Input
        DLNA 1.5
        AirPlay AirPlay 2 AirPlay
        Apple Product Connection Made for iPhone, iPod and iPad (Airplay only) Made for iPhone, iPod and iPad (Airplay only)
        Remote App Pioneer Remote App
        InstaPrevue Input Source Prevue
        TERMINALS Pioneer VSX-LX504 Pioneer VSX-LX503
        HDMI Inputs7 (1 front)7 (1 front)
        HDMI Outputs2 (1 MAIN, 1 SUB/ZONE 2)2 (1 MAIN, 1 SUB/ZONE 2)
        8K Inputs
        USB Input2 (1 Front)2 (1 Front)
        USB DC Out Port
        Optical Inputs12
        Optical Outputs
        Coaxial Inputs11
        RCA Line Inputs44
        RCA Line Outputs
        XLR Line Inputs
        Phono Input
        Multi-Channel Input
        RCA Pre-Outs11.2 (barter to Zone 3 out)11.2
        XLR Pre-outs
        Composite Video Inputs22
        Composite Video Outputs
        S-Video Inputs
        S-Video Outputs
        Component Video Inputs11
        Component Video Outputs
        Ethernet
        Ethernet Switch
        PC In
        Front A/V InputsHDMI, USBHDMI, USB
        Speaker A/B
        Headphone Out6.3 mm (1/4")6.3 mm (1/4")
        Detachable Power Cord
        adapterport
        ZONES Pioneer VSX-LX504 Pioneer VSX-LX503
        Number of Zones33
        Powered Zones2 and 32 and 3
        Zone 2 OutsHDMI, RCA Pre/Line Out (shared with Zone B line out)HDMI, RCA Pre/Line Out
        Zone 3 OutsRCA Pre/Line OutRCA Pre/Line Out
        RS-232C Interface
        +12V Trigger Output2 (A: 100 mA, B: 25 mA)2 (A: 100 mA, B: 25 mA)
        Remote (IR) Input/Output1 / 11 / 1
        MISCELLANEOUS Pioneer VSX-LX504 Pioneer VSX-LX503
        GUI Languages77
        AV Navigator
        IP Control
        PreAmp Mode
        Versatile Speaker ConfigurationSpeaker 11ch Out (FRONT, CENTER, SURROUND, HEIGHT 1/Bi-AMP, SURROUND BACK/HEIGHT 2/ZONE 3, ZONE 2)FRONT, CENTER, SURROUND, HEIGHT 1/Bi-AMP/ZONE 2, SURROUND BACK/HEIGHT 2/ZONE 3
        FL Dimmer
        Function Rename
        Remote Controller User-Friendly Simple Remote Control
        RADIO Pioneer VSX-LX504 Pioneer VSX-LX503
        Analog Tuner FM/AM FM/AM
        Presets4040
        Digital Radio
        Internet Radio TuneIn TuneIn
        Pandora
        Spotify
        Tidal
        Deezer
        Napster
        SiriusXM
        CONSTRUCTION Pioneer VSX-LX504 Pioneer VSX-LX503
        Front PanelBrushedBrushed
        Solid Aluminum Front
        Speaker Terminals1111
        Large Speaker Terminals1111
        Color-Coded Speaker Terminals
        Transparent High-Grade Speaker Terminals
        3D Space Frame Construction
        Gold plated RCA terminals
        POWER Pioneer VSX-LX504 Pioneer VSX-LX503
        Power SupplyAC 120 V, 60 HzAC 120 V, 60 Hz
        Low Leakage Flux Power Transformer
        Transformer Stabilizer
        Power Consumption850 W850 W
        No Sound Power70 W70 W
        Standby Power0.15 W0.15 W
        PHYSICAL Pioneer VSX-LX504 Pioneer VSX-LX503
        Dimensions (W x H x D)435 mm x 185 mm x 386 mm
        17-1/8" x 7-5/16" x 15-3/16"        		435 mm x 185 mm x 386 mm
        17-1/8" x 7-5/16" x 15-3/16"
        Dimensions of Package (W x H x D)541 mm x 310 mm x 487 mm
        21-5/16" x 12-3/16" x 19-3/16"
        Weight13.0 kg (28.7 lbs)13.0 kg (28.7 lbs)
        Weight of Package16.0 kg (35.3 lbs)
        SPECIFICATIONS Pioneer VSX-LX504 Pioneer VSX-LX503
        Power Output (8 Ω, 20 Hz - 20 kHz, 2 channel driven, FTC)120 W (0.08% THD)120 W (0.08% THD)
        Maximum Effective Power Output (6 Ω, 1 kHz, 1 channel driven, JEITA or IEC)230 W (10% THD)230 W (10% THD)
        Dynamic Power per Channel (3 Ω, Front)250 W250 W
        Dynamic Power per Channel (4 Ω, Front)220 W220 W
        Dynamic Power per Channel (8 Ω, Front)130 W130 W
        THD0.08% (20 Hz - 20 kHz, half power)0.08% (20 Hz - 20 kHz, half power)
        Input Sensitivity and Impedance (Line)200 mV/47 kΩ200 mV/47 kΩ
        Input Sensitivity and Impedance (Phono MM)3.5 mV/47 kΩ3.5 mV/47 kΩ
        Rated Preout Level and Impedance1 V/470 Ω1 V/470 Ω
        Rated Headphone Jack Output Level and Impedance8 Ω - 600 Ω8 Ω - 600 Ω
        Rated Headphone Power Output85 mW (32 Ω, 1 kHz, 10% THD)85 mW (32 Ω, 1 kHz, 10% THD)
        Phono Overload70 mV (MM, 1 kHz 0.5%)70 mV (MM, 1 kHz 0.5%)
        S/N Ratio (Line, IHF-A)106 dB106 dB
        S/N Ratio (Phono MM, IHF-A)80 dB80 dB
        Frequency Response (Analog In)10 Hz - 100 kHz/+1 dB, -3 dB (Direct/Pure Audio)5 Hz - 100 kHz/+1 dB, -3 dB (Direct/Pure Audio)
        DSD Sampling Rates via HDMI2.8 MHz2.8 MHz (2-ch/multi-ch), 5.6 MHz (2-ch)
        DSD Sampling Rates via USB11.2 MHz, 5.6 MHz, 2.8 MHz2.8 MHz, 5.6 MHz, 11.2 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)
        Ethernet Standard10BASE-T/100BASE-TX10BASE-T/100BASE-TX
        Wi-Fi StandardIEEE 802.11 a/b/g/nIEEE 802.11 a/b/g/n
        Wi-Fi Terminal Frequency5 GHz, 2.4 GHz5 GHz, 2.4 GHz
        Bluetooth Version4․24․1 + LE
        Bluetooth Frequency2.4 GHz2.4 GHz
        USB TerminalVer. 2.0, 5 V, 500 mAVer. 2.0, 5 V, 500 mA
        FM Frequency87.5 MHz - 107.9 MHz87.5 MHz - 107.9 MHz
        FM 50 dB Quiet Sensitivity (IHF, 1 kHz, 100% MOD.)Mono: 1.0 µV (11.2 dBf)Mono: 1.56 µV (15.0 dBf)
        AM Frequency530 kHz - 1710 kHz530 kHz - 1710 kHz
        Warranty3 Years3 Years

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

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