From easy Bluetooth® wireless streaming to the heart-pounding thrills of Dolby Atmos® and DTS:X® soundtracks, the TX-SR494 deepensenjoyment of daily life with great sound and smart features. Seven channels of high-current power give you freedom to choose a speakerlayout that suits. Dolby Atmos Height Virtualizer* or DTS Virtual:X® place sound overhead or behind if you don’t want height or surroundspeakers and both Dolby Surround® and DTS Neural:X® are on board. Rear surrounds, bi-amped front speakers, or Powered Zone B audioare also an option. AccuEQ with subwoofer EQ and AccuReflexTM for 5.2.2-ch Dolby Atmos-enabled systems clarify sound in any space.As the heart of your home theater, the TX-SR494 has HDMI® terminals supporting HDR and 4K/60p video, while the GUI with OSD overHDMI, Zone B pre-/line-out, and Vocal Enhancer function make this receiver a joy to use as well as hear. *Enabled with a future firmware update.
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Dolby Atmos and DTS:X Sound
These two sound technologies mix audio in 3D space using object-based encoding as opposed to channel-based to help create the effect of sound moving all around you. Dolby Surround and DTS Neural:X find localization cues in legacy stereo or multichannel soundtracks and upmix them to simulate 3D audio.
Virtual 3D Sound with DTS Virtual:X
DTS Virtual:X is designed to create an immersive 3D soundfield from any speaker layout, regardless of whether height, surround, or rear speakers are installed. It uses DSP-based algorithms to place you at the center of a multidimensional soundfield with height and surround effects, and works in large or small speakers. DTS Virtual:X works in the 3D domain with DTS:X soundtracks, other DTS formats, and non-encoded stereo.
HDR & 4K Support via HDMI
Each of the receiver's HDMI terminals support 4K/60 Hz, HDR10, HLG, Dolby Vision, BT.2020, and HDCP 2.2. The HDMI output supports Audio Return Channel (ARC) for the reproduction of display-based audio, such as integrated apps. You can confirm the A/V input/output status via an OSD window.
Discrete Amps
The receiver's discrete amps, high-output transformer, and large capacitors are designed to deliver high current to the speakers to help provide better speaker control for fast transient response, wide dynamic range, and clear, accurate sound.
AccuEQ Room Acoustic Calibration with AccuReflex
AccuEQ sets speaker parameters, such as size and distance, and sets their sound-pressure levels. It then selects the right subwoofer crossover setting and applies equalization to all your speakers. AccuReflex is designed to optimize object-based audio reproduction through Dolby Atmos-enabled speakers, resolving phase-shift caused by the path differences between directional and non-directional sounds. These features combine to help improve localization and provide a 3D soundstage with vertical movement and overhead dimensionality.
Clear Dialogue with the Touch of a Button
The TX-SR494 features DSP-controlled Vocal Enhancer that identifies vocal frequencies and allows you to raise or lower them to your taste using the keys on the remote or via the tone controls on the receiver's front panel.
Zone B Line-Out
The Zone B line-out lets you connect a component with an analog RCA line input to audio sources connected to the receiver, including digital audio via HDMI, optical, or digital coaxial. Share sound to a nearby space, or connect a supported transmitter for your wireless headphones to enjoy your media without disturbing those around you.
Powered Zone B Audio or Front-Channel Bi-Amping
The Height/Surround Back outputs can alternatively be used as a Bi-Amp/Zone B speaker output to drive stereo speakers in another room with a 5.2-channel setup in the main room. They can share a source exclusively in Zone B, or play the same source in both zones. You can also bi-amp your compatible front speaker pair.
Rear-Panel Setup Guide Helps Simplify Connection
Connections to speakers and external devices are illustrated and labeled on the back panel. Images help you read the diagram upside-down if you're leaning over the top of the receiver.
Bluetooth Audio Streaming
Bluetooth wireless technology sends whatever is playing on your compatible mobile device, laptop, or computer to your home theater. Once the receiver has paired with and remembered your device, it can start playback automatically whenever it detects an incoming Bluetooth audio stream from that device.
Advanced Music Optimizer
Lossy files, such as MP3s, are convenient, but data lost in the compression process results in comparatively low fidelity. Advanced Music Optimizer technology helps restore lost information for enhanced sound quality with these file types. This mode also optimizes Bluetooth streaming playback quality.
Connect and Power Your Media Streaming Device
A rear-panel USB power output supplies power to select HDMI media streaming devices, allowing you to upgrade your home theater with on-demand network entertainment without additional power cords.
Dolby Atmos Height Virtualizer, Available via a Future Firmware Update
When playing any Dolby format, engaging the Dolby Atmos Height Virtualizer helps provide a more immersive listening experience by creating a virtual surround and height effect from traditional speaker layouts. This feature is scheduled to be made available via a future firmware update.
| Amplification | |
| Number Of Channels | 7 |
| Stereo RMS Power (watts) | 80 |
| THD in Stereo | 0.08% |
| Frequency Bandwidth (stereo) | 20-20k Hz |
| Minimum Impedance L/R | 4 ohms |
| Minimum Impedance Center | 4 ohms |
| Minimum Impedance Surround | 4 ohms |
| General Features | |
| Internet-ready | No |
| Bluetooth | Built-in |
| Apple AirPlay | No |
| Alexa-compatible | No |
| Google Assistant-compatible | No |
| Chromecast built-in | No |
| DTS Play-Fi | No |
| App Remote Control | No |
| USB port for iPod/iPhone | No |
| FM Sensitivity | Not Given |
| HD Radio Tuner | No |
| On-Screen Display | Thru HDMI |
| Auto Speaker Calibration | AccuEQ |
| Plays Copy-protected 4K | Yes |
| HDR-compatible | HDR10, Dolby Vision, HLG |
| HDMI Standby Pass-through | Yes |
| 4K Video Upscaling | Yes |
| HDMI to HDMI Upconversion | Yes |
| DLNA Certified | |
| MHL-compatible | No |
| Multibrand Remote Control | No |
| Learning Remote | No |
| LCD Remote | |
| Width (inches) | 17-1/8 |
| Height (inches) | 6-5/16 |
| Depth (inches) | 13-7/16 |
| Weight (pounds) | 18.1 |
| Multi-room Audio/Video | |
| Powered Multi-room Audio Output | No |
| Preamp Multi-room Audio Output | No |
| Multi-room HDMI Output | No |
| Playback from Digital Audio Inputs | No |
| Playback from Streaming Sources | No |
| Surround Processing | |
| Dolby Digital | DD, TrueHD, DD+, |
| Dolby Atmos | Yes |
| DTS | DTS, HD, HDMA, ES, 96/24 |
| DTS:X | Yes |
| Inputs & Outputs | |
| Phono Input | No |
| Audio-Video Inputs | 4 |
| Audio-only Inputs | 4 |
| Component Video Inputs | None |
| Component Video Monitor Outputs | None |
| Optical Digital Inputs | 1 |
| Coaxial Digital Inputs | 1 |
| Optical Digital Outputs | None |
| Coaxial Digital Outputs | None |
| HDMI Inputs | 4 |
| HDMI Monitor Outputs | 1 |
| Subwoofer Outputs | 2 |
| Discrete Subwoofer Outputs | No |
| Multi-Channel Analog Input | No |
| Multi-channel Preamp Output | No |
| Main Speaker Output Pairs | 1 |
| Main Speaker Terminals | Posts, Clips |
| Ethernet Port | 1 |
| USB Connections | Firmware updates only |
| Removable Power Cord | No |
Buying a Onkyo Factory Refurbished product is a great way to get "as-new" products at a considerable savings. Every product has been thoroughly tested, repaired (if necessary), cleaned and otherwise renewed to original condition. Next it's repackaged with accessories included. When you consider that a factory-renewed Onkyo product undergoes such close scrutiny for defects and workmanship, you might actually be buying something that is in many ways better than new. And for your piece of mind and protection, your purchase is covered by a full 1 year parts and labor warranty valid at any authorized Onkyo repair center (you can look-up locations online here or call 800-229-1687)
Onkyo, like all electronics manufactures, receives products returned for various reasons. In 2023 consumers returned 23 billion dollars in electronics globally, of which less than 5% were found to be defective! Once a product has been opened, it must be resold as refurbished or open box and cannot be resold as new again. The history and reason why a product was returned is not provided to us, thus we cannot provide any additional details regarding its past. All products are processed by Onkyo certified technicians, where they are fully tested, repaired (only if necessary), and retested again to ensure the highest quality control. Each unit must pass a complete battery of test before it can be titled a "Onkyo Factory Refurbished" product.
Most (not all) units are cosmetically in Mint Condition (graded a 9 or higher on a scale of 1-10). Very minor signs of wear (light surface scuffs or minor scratches) may be present, although most units show little or no signs of any usage. We DO NOT sell products that are cosmetically damaged (cracked displays, broken knobs, heavy scratches, or physically abused) unless noted in the description. Unfortunately, we cannot provide actual photos of each unit or pick the best one for anyone, as they are all randomly chosen from our factory sealed boxes.
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