Onkyo TX-SR494 4K Dolby Atmos AV Receiver
- 7 channels, 80 watts per channel
- 4 HDMI inputs, 4K/60p and HDR pass-through
- 5.2.2-channel Dolby Atmos and DTS:X, includes height virtualization
- AccuEQ room correction, includes subwoofer EQ and AccuReflex
- Bluetooth, Wi-Fi, AirPlay and USB, plus AM/FM tuner
- 2-year parts and labor warranty
Last refreshed Aug 4, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A multi-channel Atmos receiver for buyers building a real surround system, with height and surround virtualization for rooms that cannot fit extra speakers, though its onboard streaming service support stays limited to Pandora.
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ASIN: B07SX61VNTModel: TX-SR494Category: AV Receivers
Overview
Powering a multi channel Dolby Atmos setup, this receiver routes video and audio through its HDMI inputs while running AccuEQ calibration to balance the connected speakers for the room.
Height virtualization and DTS Virtual:X let it approximate overhead and rear effects without mounting extra speakers, useful in a room where wiring a full array is not practical. Streaming is limited mostly to Pandora rather than a broader service list, so cord cutters relying on other platforms will want to check compatibility first.
Who it's for
A home theater room without ceiling or rear wiring benefits from the virtual height and surround processing here. Households already invested in a wider streaming ecosystem than Pandora offers should look at a model with broader app support instead.
Pros and cons
- Runs Dolby Atmos and DTS:X without extra speakers
- AccuEQ calibrates the room automatically
- Supports 4K HDR passthrough including Dolby Vision
- Bluetooth, Wi-Fi and AirPlay built in
- Streaming apps limited mostly to Pandora
- Height virtualization simulates rather than replaces ceiling speakers
- EARC listed as the only extra HDMI feature
Performance notes
AccuEQ measures the room through the included microphone and adjusts equalization and subwoofer levels channel by channel. Height virtualizer and DTS Virtual:X process the surround channels psychoacoustically to suggest overhead and rear placement from speakers mounted at ear level.
Specifications
| Brand | Onkyo |
|---|---|
| Model | TX-SR494 |
| Dimensions & fit | |
| Weight | 21.27 poundshigher than 76% of 43 av receivers |
| Dimensions | 17.1 × 12.9 × 6.3 inches |
| Dimensions | 17.13 x 12.91 x 6.3 in |
| Power & efficiency | |
| Power | 160 wattshigher than 54% of 40 av receivers |
| Construction & materials | |
| Color | Black |
| Compatibility & installation | |
| Connectivity | Bluetooth, USB |
| Other details | |
| Hdmi Ports | 4 |
| Brand Tech | Onkyo |
Closest rivals on specs
Sony STRDH550 5.2 Channel AV Receiver- Power 160 vs 145 watts (+10%)
- Weight 21.27 vs 19.25 pounds (+10%)
Sherwood RX-4109 2-Channel Stereo Receiver- Power 160 vs 105 watts (+52%)
Sherwood RX-4105 2-Channel Stereo Receiver- Power 160 vs 100 watts (+60%)
Frequently asked questions
Does the Onkyo TX-SR494 output true overhead Atmos without ceiling speakers?
It approximates overhead and rear effects through Dolby Atmos Height Virtualizer and DTS Virtual:X, processed from speakers at ear level rather than actual ceiling channels.
Can the TX-SR494 run a 5.2.2 Dolby Atmos speaker layout?
Yes, the seven amplified channels support a 5.2.2 Atmos-enabled configuration alongside options for bi-amped fronts or a second powered zone.
What video formats pass through the Onkyo TX-SR494's HDMI ports?
The HDMI inputs support 4K at 60p along with HDR10, HLG, Dolby Vision and BT.2020 wide color.
What streaming services work on the TX-SR494 without an external device?
Pandora is the built-in internet service; other platforms need to be streamed to the receiver over Bluetooth or AirPlay instead.