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7.1-Channel A/V Surround Receiver

Complementing Video Brilliance with Audio Excellence

Embodying the heart and soul of home theatre -- seven channels pumped by consistent power; high-quality 192 kHz/ 24-bit DACs for a highly accurate and smooth signal; component video for wideband quality; and speaker terminals for playback in another room -- the TX-SR503E is our answer to cost-effective, performance-oriented home theatre.  With reliability and ease-of-use, the TX-SR503E is your ticket to your own private cinema.


Amplifier Features

  • 100 watts per channel minimum into 6 ohms, 1 kHz, DIN
  • Wide Range Amplifier Technology (WRAT)
  • Reduced Negative Feedback (NFB)
  • H.C.P.S. - massive high power transformer
  • Optimum Gain Volume Control Circuitry
  • Discrete output stages for all channels
  • Full bandwidth power to all 7 main channels
  • Oversized electrolytic capacitors
  • High-current, low-impedance drive for all channels
  • Auto-protection circuitry
  • High-grade aluminum heatsink

Audio/Video Features

  • DTS, DTS 96/24, DTS Discrete/Matrix 6.1, DTS Neo:6, Dolby Digital, Dolby Digital EX, Dolby Pro Logic IIx
  • 192 kHz/24-bit DACs for all channels
  • Digital upsampling
  • HDTV-capable (50 MHz) component video switching
  • Non-scaling configuration
  • Advanced 32-bit DSP chip
  • A-form listening mode memory
  • “Easy-set” speaker configuration
  • CinemaFILTER
  • Crossover adjustment (60/80/100/120/150 Hz) for bass management
  • A/B speaker drive
  • “Double Bass” function
  • 3 component video inputs and 1 output
  • 3 S-Video inputs and 2 outputs
  • 4 composite video inputs and 2 outputs
  • 2 audio and 4 A/V inputs
  • 4 digital inputs (3 optical/1 coaxial)
  • Color-coded 5.1-multichannel inputs for DVD-Audio and Super Audio CD
  • Dedicated line-level subwoofer pre out

  • Direct mode
  • Pure Audio mode
  • Heavy-duty color-coded banana plug compatible speaker binding posts (except speaker B)
  • Late night mode (high, low, off)
  • Automatic signal detection
  • Rec out selector (audio/video)
  • Bass and treble tone control (L/R)

FM/AM Tuner Features

  • Outstanding selectivity and RDS sensitivity
  • 30 FM/AM random presets
  • FM auto scan tuning
  • FM stereo indicator
  • 75-ohm antenna input
  • FM indoor antenna supplied
  • AM loop antenna supplied

Other Performance Features

  • Precision digital speed-sensitive volume control
  • Absolute volume display
  • 3-mode display dimmer (bright, normal, low)
  • Headphone jack (standard size)
  • Audio mute (via remote)
  • Sleep timer (via remote)
  • Battery-free memory backup
  • Heavy-duty power cord
  • Large non-resonant feet
  • Heavy-gauge, anti-resonant, reinforced steel chassis
  • Brushed aluminum front panel
  • Preprogrammed RI (Remote Interactive) remote control



RSS News

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Dear Valued Customer, We regret to inform you that we will terminate Gracenote music recognition service from the ONKYO… more

Press Release dated: 2 Jul 2019
Premium RZ Series AVRs Get a High-Octane Upgrade with Strengthened Amps and IMAX® Enhanced Certification

ONKYO, JAPAN. Onkyo has added two THX® Certified Select™ and IMAX® Enhanced*1 certified Network A/V Receivers to its… more

Press Release dated: 30 Apr 2019
Onkyo issues Firmware Update for Apple AirPlay 2

OSAKA, JAPAN. Onkyo is pleased to confirm the release of a firmware update that will add Apple AirPlay 2 capabilities to… more

Press Release dated: 18 Apr 2019
Onkyo Unveils A High-Performance THX® Certified Select™ AV Receiver and Flexible 3D Audio-Ready Home Cinema Packages

OSAKA, JAPAN. Onkyo is continuing its mission to make home entertainment more immersive and ever more adaptable with the… more

Press Release dated: 26 Mar 2019
Onkyo Launches Value-Packed AVRs with Dolby Atmos® and DTS:X® for 3D Audio Through Any Speaker Layout

OSAKA, JAPAN. Onkyo presents a persuasive value proposition with two Dolby Atmos and DTS:X enabled A/V receivers, the 5.2-ch… more

Press Release dated: 6 Feb 2019