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Onkyo TX-NR555 Network Receiver

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Quick Overview

The Onkyo TX-NR555 AV Receiver quite simply has amazing features for the money, if you are looking to upgrade to the latest HDMI video processing, or setting up a Home theatre for the first time, look no further than the 646! Stream your music from your computer, Spotify, Apple TV and others, all from the control of your smart phone - next generation Home Theatre has arrived.

Onkyo TX-NR555 Network Receiver

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Home Theater at the Cutting Edge

Experience the cutting edge of home theater with the 7.2-channel TX-NR555 Network A/V Receiver, the first in its class to feature the revolutionary DTS:X™ and Dolby Atmos® multi-dimensional audio formats. Onkyo’s high-current amplification system drives your speakers to reproduce soundtracks with maximum impact and fidelity at 160 W/Ch. UltraHD video capability is equally impressive, with eight HDMI® terminals including dedicated HDCP 2.2 compatible inputs for premium 4K video content and two HDMI outputs for video in separate rooms. The TX-NR646’s high-grade 384 kHz/32-bit AKM DAC not only brings movies to life, but your Hi-Res and streamed music as well. Conveniently stream music over built-in Wi-Fi®, Bluetooth, AirPlay, or internet music services including Spotify Connect and Deezer. Use the free Onkyo Remote app to stream audio stored on your mobile device, browse and select tracks from online services, and control playback in two zones. Plus, for fans of vinyl, the TX-NR555 has a phono equalizer input to connect a turntable.

DTS:X Compatible Image

DTS:X™ Compatible

DTS:X is a next-generation object-based surround sound technology that includes height to deliver a fully-immersive listening experience to your living room. DTS:X provides listeners the ultimate in flexibility, immersion, and interactivity.

Supports Dolby Atmos Up to 5.1.2 Channels Image

Supports Dolby Atmos® Up to 5.1.2 Channels

Dolby Atmos transports you from an ordinary moment into an extraordinary experience with captivating, multidimensional sound that fills your room and flows all around you to move your mind, body, and soul.

Hi-Current Amp Design for Authentic Sound Reproduction Image

Hi-Current Amp Design for Authentic Sound Reproduction

High instantaneous current enhances speaker control for accurate and dynamic audio reproduction. It’s the cornerstone of Onkyo’s amplification philosophy.

HDMI 8 In / 2 Out Including 1 Front (4K UltraHD / HDCP 2.2) Image

HDMI® 8 In / 2 Out Including 1 Front (4K UltraHD / HDCP 2.2)

All HDMI terminals support 4K/60Hz, as well as HDCP 2.2 for next-generation UltraHD streaming and broadcasting.

Bluetooth Audio / Wi-Fi with Spotify and AirPlay Image

Bluetooth Audio / Wi-Fi® with Spotify and AirPlay

Stream virtually any audio from your smartphone, tablet, or PC to your home theater for clear and powerful sound. Available internet radio and music subscription services include Spotify and many more.

DSD 5.6 MHz, FLAC 192 kHz/24-bit Hi-Res Audio Capable Image

DSD 5.6 MHz, FLAC 192 kHz/24-bit Hi-Res Audio Capable

Onkyo A/V receivers are engineered for universal Hi-Res compatibility and ease of use. Use the remote app to locate your 192/24 and 96/24 albums (including 5.6 MHz DSD playback) on PC or NAS and bask in the clarity, depth, and detail of high-resolution music.

384 kHz/32-bit Hi-Grade DAC Image

384 kHz/32-bit Hi-Grade DAC

A premium-quality AK4458 digital-to-analog converter from Asahi Kasei unlocks the full potential of any audio format, thanks to unique low-distortion filtering technologies for clear sound.


Additional Information

Colour Black
Output Power (RMS) 160 W/Ch (6 Ohms, 1 kHz, 1% THD, 1 Channel Driven, IEC)
HDMI In HDMI® 8 In / 2 Out Including 1 Front (4K UltraHD / HDCP 2.2)8 HDMI Inputs (1 Front/6 Rear)
HDMI Out 2 (Main room includes ARC)
Phono Input Yes
Preamp Out 2 Parallel Subwoofer Pre-Outs
Dimensions (mm) 435 x 173.5 x 329 mm
Weight (kg) 9.4

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