Features
Remote Control
Inputs and Outputs Notes

Features

WRAT (Wide Range Amplifier Technology): This technology uses low-negative-feedback circuit topology for accurate signal reproduction, improved dynamic signal-to-noise ratio, and better delivery of power peaks.

192kHz/24-Bit Digital-to-Analog Converters: To decode and playback high-resolution recordings, this receiver is equipped with 192kHz/24-bit DACs on all channels.

Multi-channel Input: Although this unit features built-in Dolby Digital, Dolby Pro Logic IIx and DTS processing, it also has a 5.1 multi-channel input for use with external multi-channel decoders.

New Surround Modes: The Onkyo TX-SR503 features several combined modes using existing Dolby and Digital Theater Systems (DTS) surround modes:

• Dolby Digital+Dolby Pro Logic IIx (Music and Movie): This mode uses the Dolby Pro Logic IIx decoder to create surround sound from Dolby Digital 2-channel material.
• DTS+Neo:6: This mode uses the Neo:6 decoder to create 6.1-channel surround from DTS 5.1-channel material. It can be used with CDs and DVDs that bear the DTS or DTS 96/24 logo.
• DTS+Dolby EX: This mode uses the Dolby EX decoder to create 6.1-channel surround from DTS 5.1-channel material. It can be used with CDs and DVDs that bear the DTS or DTS 96/24 logo.
• DTS+Dolby Pro Logic IIx (Music and Movie): This mode uses the Dolby Pro Logic IIx decoder to create surround sound from DTS 3/2.1-channel material.

Listening Modes: This receiver incorporates a wide variety of surround listening modes to bring you maximum enjoyment from your audio and video software. The surround modes include:

• Dolby Digital EX
• Dolby Digital
• Dolby Pro Logic II
  • Music
  • Movie
  • Game
• Dolby Pro Logic IIx
  • Music
  • Movie
  • Game
• DTS
• DTS-ES
  • Discrete
  • Matrix
• DTS 96/24
• DTS Neo:6
  • Cinema
  • Music
• Dolby Digital+Dolby Pro Logic IIx
  • Music
  • Movie
• DTS+Neo:6
• DTS+Dolby EX
• DTS+Dolby Pro Logic IIx:
  • Music
  • Movie
• Onkyo Original DSP
  • Mono Movie
  • Orchestra
  • Unplugged
  • Studio-Mix
  • TV Logic
  • All channel stereo
  • Full Mono

Basic Modes: This receiver has two basic listening modes, Direct and Stereo, for use with 2-channel sources. The Direct mode uses minimal signal processing to give you the purest sound possible. The Stereo mode is processed as a stereo signal and output to the front left and right speakers and the subwoofer.

Adjustable Crossover: This receiver has a built-in crossover for the speaker system. This setting is available when you tell the receiver that there is a subwoofer being used, or when you set your front speakers to "Small." Depending upon the size of the drivers in the front speakers, you can choose from the following cutoff frequencies: 60, 80, 100, 120 and 150Hz.

Audio Adjustments:

• Double Bass: This function boosts the bass by feeding bass sounds from the front left and right channels to the subwoofer. This works well with mono and 2-channel sources, including 96kHz PCM.

• Late Night (Dolby Digital only): You can reduce the dynamic range of Dolby Digital material so you can still hear quiet parts even when listening at low volume levels. Loud passages, such as explosions, are subdued, so as not to disturb others.

• CinemaFILTER: This function can soften the harshness or brightness sometimes experienced with movie soundtracks, which are typically mixed for reproduction in a movie theater.

Sleep Function: From the remote, you can set the unit to automatically turn off after a selected amount of time. You can choose from between 10 and 90 minutes in 10-minute increments.

Display Dimmer: The display illumination can be set to dim, dimmer, or normal brightness.

Remote Control

Multibrand Remote (RC-607M): The supplied wireless remote is a multibrand remote. The remote is pre-programmed to operate Onkyo CD, DVD, MD, and cassette players. In addition, the remote is pre-programmed to operate other popular brands of equipment, including DVD players, satellite receivers, cable boxes, VCRs, and televisions.

Inputs and Outputs Notes

Assignable Digital Inputs: The TX-SR503 features 3 optical (Toslink) and 1 coaxial digital inputs. There are no digital outputs. Each input can be assigned to any input source.

Headphone Output: This receiver has a standard 1/4" headphone output on the front panel.

Speaker Outputs: There are color-coded binding post connectors for the left front A (white), right front A (red), center (green), left surround (blue), right surround (gray), left surround back (dark brown), and right surround back (light brown). The B speakers use spring clip connectors. The binding posts are not 5-way because a plastic collar prevents their use with spade lugs. A sheet of color-coded speaker wire labels is provided.

RI Remote Control Jack: The 1/8" RI remote control jack allows you to connect this receiver to compatible Onkyo components.

Multi-Channel Input: The receiver is equipped with a 5.1 multi-channel input for compatibility with 5.1-channel decoders. The input consists of left front, right front, center, left surround, right surround, and subwoofer RCA inputs.