Onkyo TX-NR555 7.2-Channel Network A/V Receiver – B-Stock


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Onkyo TX-NR555 7.2-Channel Network A/V Receiver B-Stock

This Onkyo TX-NR555 is a “B-STOCK” item —Click Here For Gibby’s “B-Stock” Definition.

  • 7-channel amplifier
  • Dolby® and DTS® surround sound decoding
  • built-in Wi-Fi for listening to music from a networked PC
  • 2 component video inputs
  • 2 composite video input

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Product Description

Onkyo TX-NR555 7.2-Channel Network A/V Receiver B-Stock

This Onkyo TX-NR555 is a “B-STOCK” item —Click Here For Gibby’s “B-Stock” Definition.

With the Onkyo TX-NR555 you can enjoy wireless audio streaming and object-based, multi-channel audio. The receiver features Dolby Atmos compatibility for object-based audio support, plus it will support DTS:X with a future firmware upgrade. It delivers up to 80W per channel at 8 Ohms for robust audio playback. Built-in AirPlay and Bluetooth connectivity allow you to wirelessly stream music from compatible audio sources such as computers, MP3 players, smartphones, and tablets. Onboard Wi-Fi and Ethernet connectivity give you the ability to stream music from Internet radio sources.

The Onkyo TX-NR555 has six HDMI inputs for interfacing audio and video sources, three of which support 3D and 4K video sources. There’s also a USB port on the rear panel for attaching a USB drive. The free Onkyo Remote app will allow you to control your receiver from a smartphone or tablet. Built-in high-resolution audio support allows you to take advantage of dynamic surround sound formats like DTS-HD Master Audio and Dolby TrueHD.

Dynamic Audio Amplification

Onkyo’s dynamic audio amplification delivers power at 140W/Ch (6 Ohms, 1 kHz, 0.9% THD, 1 Channel Driven)/ 80W/Ch (8 Ohms, 20 Hz to 20 kHz, 0.08% THD, 2 Channels Driven).

Smooth Analog Signal

Onkyo developed Vector Linear Shaping Circuitry (VLSC) to reassemble the audio signal to its original form following processing. Unlike conventional filters, VLSC removes pulse noise generated in D/A conversion, allowing the sound wave to be reproduced with high fidelity for a smooth analog signal.

Multi-Zone Audio

The TX-NR555 Powered Zone 2 brings audio to speakers connected to the receiver into a second room. With the dedicated Zone 2 DAC, you can send Internet audio and digital audio sources to your second listening zone.

Supports Dolby Atmos Up to 5.1.2 Channels

Dolby Atmos surround sound technology dispenses with channel-based coding in favor of more advanced object-based coding, giving the sound designer the ability to precisely place sounds anywhere in the 3-dimensional space. The TX-NR555 features the ability to connect a surround sound speaker system and two additional overhead speakers, or two additional Dolby Atmos-certified up-firing speakers.

DTS:X Ready

DTS:X is an object-based surround sound technology that includes height channels for a more immersive listening experience. You will be able to personalize your audio experience, for example, by turning up just the dialog within a mix. DTS:X allows you to customize to your room layout as well as control dialog and dynamic range. DTS:X functionality will be made available via a future firmware update.

4K Ultra HD Video Performance

The TX-NR555 features HDCP 2.2 compatibility on three inputs and its output to support 4:4:4 color space and 4K @ 50/60 Hz, which is four times the clarity of 1080p/60 video resolution. The TX-NR555 enables transmission of High Dynamic Range (HDR) formats, with BT.2020 support, and provides enhanced picture quality by simultaneously enabling greater detail for both the dark and bright parts of an image. The TX-NR555 also upscales 1080p video to UHD.

Bluetooth and Wi-Fi with Pandora, Spotify, and AirPlay

The Onkyo TX-NR555 has AirPlay, Wi-Fi, and Bluetooth technologies built-in to stream virtually any audio from a smartphone, tablet, or computer to your home theater for powerful sound. With Spotify, Pandora, and TuneIn built-in, you can select a station and search for music available on these services via the free Onkyo Remote app on your phone. The Onkyo Remote app puts streaming options at your fingertips, from universal hi-res audio via network-attached devices, to Internet streaming services, to music on your smartphone and tablet. Furthermore, Tidal and Google Cast will be operable with an upcoming firmware update.

384 kHz/32-bit DAC

The AK4458 digital-to-analog converter from Asahi Kasei implements low-distortion filtering technologies for clear sound and unlocks the potential of any audio format, including compressed, lossless, and hi-res audio (MP3, WMA, WMA Lossless, FLAC, WAV, Ogg Vorbis, AAC, Apple Lossless, DSD 5.6 MHz, LPCM, and Dolby TrueHD).

AccuEQ with AccuReflex

AccuEQ conducts two measurements to set the level, distance, and crossover for all speakers, including the subwoofer. Choose to include or bypass EQ measurement for front left and right speakers, and choose to automatically or manually set the EQ. Further, you can save your own manual EQ settings into three available presets. AccuReflex technology aligns the phase of up-firing “height” speakers with the sound coming directly from your other speakers. Any delay is resolved so that everything arrives at your ears at the same time. The result is cohesive reproduction of object-based soundtracks.

FireConnect Multi-Room Audio

A firmware update will enable any audio source connected to the receiver (from vinyl to streaming audio) to be sent wirelessly via FireConnect, powered by Blackfire, to an optional compatible speaker placed anywhere in your home.

Additional Information

Weight 11.16 kg

– Number Of Channels 7
– Stereo RMS Power (watts) 80
– THD in Stereo 0.08 %
– Frequency Bandwidth (stereo) 20-20k Hz
– Minimum Impedance L/R 6 ohms
– Minimum Impedance Center 6 ohms
– Minimum Impedance Surround 6 ohms

General Features
– Internet-ready Yes
– Bluetooth Built-in
– Apple AirPlay Built in
– App Remote Control Yes
– USB port for iPod/iPhone No
– FM Sensitivity Not Given
– HD Radio Tuner No
– On-Screen Display Thru HDMI
– Auto Speaker Calibration AccuEQ/AccuReflex
– HDCP 2.2 for 4K Video Yes
– HDR-compatible Yes
– HDMI Standby Pass-through Yes
– Composite Video Conversion From Composite to HDMI
– Component Video Conversion From Component Video to – HDMI
– HDMI to HDMI Upconversion Yes
– DLNA Certified
– MHL-compatible No
– Multibrand Remote Control No
– Learning Remote No
– LCD Remote
– Width (inches) 17-3/16
– Height (inches) 6-13/16
– Depth (inches) 15-9/16
– Weight (pounds) 20.7
– Parts Warranty 1 Years
– Labor Warranty 1 Years

Multi-room Audio–Video
– Powered Multi-room Audio Output Yes
– Preamp Multi-room Audio Output Yes
– Multi-room Video No
– Multi-room HDMI Output No

– Surround Processing
– Dolby Digital DD, TrueHD, DD+
– Dolby Atmos Yes
– DTS DTS, HD, HDMA, ES, 96/24
– DTS:X Firmware update

Inputs & Outputs
– Phono Input 1
– Audio-Video Inputs 6
– Audio-only Inputs 3
– Component Video Inputs 2
– Component Video Monitor Outputs None
– Optical Digital Inputs 2
– Coaxial Digital Inputs 1
– Optical Digital Outputs None
– Coaxial Digital Outputs None
– HDMI Inputs 6
– HDMI Monitor Outputs 1
– Subwoofer Outputs 2
– Multi-Channel Analog Input No
– Multi-channel Preamp Output No
– Main Speaker Output Pairs 1
– Main Speaker Terminals Posts
– Ethernet Port 1
– USB Connections 1 Rear
– Removable Power Cord No

Receivers - Features

DTS:X, Chromecast, FlareConnect, Dolby Atmos, Dolby TrueHD, DTS HD Master, Dolby Vision, AirPlay, Wi-Fi, Bluetooth, Spotify, Internet Radio, SiriusXM

Receivers - Channels


Receivers - HDMI Inputs


Receivers - HDMI Outputs


Receivers - Watts Per Channel

76 to 100w

Receivers - Multi Room Zones


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Onkyo 1 Year Limited Warranty


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