Onkyo TX-NR5100 7.2-Channel 8K AV Receiver
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Onkyo TX-NR5100 7.2-Channel 8K AV Receiver
The Onkyo TX-NR5100 is a powerhouse 7.2-channel 8K SMART AV Receiver engineered for audiophiles and home-theatre enthusiasts who demand the very best. Delivering 165 watts per channel, full Dolby Atmos and DTS:X immersive audio, HDMI 2.1 with 8K/60 and 4K/120 pass-through, and seamless integration with every major smart-home ecosystem, the TX-NR5100 is the centrepiece your system deserves.
Key Features
- 165 W × 7 channels — authoritative, room-filling power
- 5.2.2-ch Dolby Atmos® & DTS:X® playback with Height Virtualizer and DTS Virtual:X™ 3D sound virtualisation
- SMART AV Receiver™ — Works with Sonos, Chromecast built-in™, AirPlay 2, and DTS Play-Fi®; streams Spotify®, Amazon Music HD, TIDAL, Deezer, Pandora®, and TuneIn
- Voice control — compatible with Hey Google and Amazon Alexa
- Dual-band Wi-Fi® (2.4 GHz / 5 GHz, 802.11ac) for stable, high-speed streaming
- HDMI® 2.1 — 8K/60p, 4K/120p, HDR10+, Dolby Vision, BT.2020, VRR, ALLM, QFT, eARC (Main Out), HDCP 2.3
- HDMI Sub Out for simultaneous output to a projector, gaming monitor, or second TV
- Bluetooth® RX (SBC/AAC) and TX (SBC / aptX™ / aptX HD) for wireless headphone listening
- Zone B pre-/line-out for multi-room audio to a compatible headphone dock
- AccuEQ with AccuReflex™ and dedicated subwoofer EQ for precision room calibration
- Vocal Enhancer, media info display, and one-touch volume memory-preset functions
Smart Home Compatible with Voice Control
The TX-NR5100 integrates effortlessly into your existing smart-home ecosystem — Apple AirPlay 2, Amazon Alexa, Google Assistant, and more. Operate it hands-free as a fully networked device within your multi-room setup. Requires a compatible third-party smart-home device with microphone.
HDMI® 2.1 with 8K
HDMI 2.1 supports eARC, resolutions up to 8K/60 and 4K/120, and Dynamic HDR formats. 8K delivers twice the horizontal and vertical resolution of 4K — four times as many pixels — combined with a 60 Hz refresh rate for smooth, razor-sharp images. Future-proof your system today.
Ultimate 4K Gaming Experience
4K/120 with VRR and ALLM eliminates screen-tearing and input lag, making sports, action movies, and high-performance gaming look and feel extraordinary.
Specifications
| Amplifier Section | |
| Power Output (All Channels Driven) | 165 W/ch (6 Ω, 1 kHz, 10% THD, 1-ch driven) 80 W/ch (8 Ω, 20 Hz–20 kHz, 0.08% THD, 2-ch driven, FTC) |
| Dynamic Power | 160 W (3 Ω, Front) 125 W (4 Ω, Front) 85 W (8 Ω, Front) |
| THD+N | 0.08% (20 Hz–20 kHz) |
| Input Sensitivity / Impedance | 200 mV rms / 32 kΩ (Line) |
| Rated RCA Output Level / Impedance | 200 mV rms / 2.2 kΩ (Zone B line-out) |
| Frequency Response | 10 Hz–100 kHz / +1 dB, −3 dB (Direct / Pure Audio) |
| Tone Control | ±10 dB at 20 Hz (Bass) / ±10 dB at 20 kHz (Treble) |
| Signal-to-Noise Ratio | 106 dB (Line, IHF-A) |
| Speaker Impedance | 4–16 Ω |
| Tuner Section | |
| FM Tuning Range | 87.5 MHz–107.9 MHz |
| AM Tuning Range | 530 kHz–1,710 kHz |
| FM/AM Preset Memory | 40 stations |
| Connectivity | |
| HDMI Inputs / Outputs | 6 in / 2 out (Main + Sub) |
| HDMI Version | HDMI 2.1 (8K/60p, 4K/120p, eARC, VRR, ALLM, QFT, HDCP 2.3) |
| Analogue Audio Inputs | 4 × RCA stereo |
| Digital Audio Inputs | 2 × Optical, 2 × Coaxial |
| Phono Input | 1 × MM |
| USB | 1 × USB-A (front) |
| Network | 1 × RJ-45 (Ethernet) |
| Wi-Fi | Dual-band 2.4 GHz / 5 GHz, 802.11a/b/g/n/ac |
| Bluetooth | RX: SBC, AAC — TX: SBC, aptX™, aptX HD |
| Zone B Output | Pre-/line-out |
| Headphone Output | 1 × 6.3 mm (¼˝) |
| Audio Formats | |
| Surround Formats | Dolby Atmos, Dolby TrueHD, Dolby Digital Plus, Dolby Digital, DTS:X, DTS-HD Master Audio, DTS-HD High Resolution, DTS, DTS Virtual:X, Dolby Atmos Height Virtualizer, Auro-3D |
| Streaming Services | Spotify, Amazon Music HD, TIDAL, Deezer, Pandora, TuneIn |
| Multi-Room Protocols | Works with Sonos, Chromecast built-in, AirPlay 2, DTS Play-Fi |
| General | |
| Power Supply | AC 120 V~, 60 Hz |
| Power Consumption (Operating) | 490 W |
| Power Consumption (Idle) | 45 W |
| Power Consumption (Standby) | 0.1 W |
| Dimensions (W × H × D) | 435 × 160 × 328 mm (17⅛˝ × 6 5⁄16˝ × 12 15⁄16˝) |
| Weight (Net) | 8.4 kg (18.5 lbs) |
| Shipping Dimensions (W × H × D) | 525 × 240 × 405 mm (20 11⁄16˝ × 9 7⁄16˝ × 15 15⁄16˝) |
| Shipping Weight | 10.5 kg (23.1 lbs) |
| Colour | Black |
| Supplied Accessories | Indoor FM antenna, AM loop antenna, Speaker setup microphone, Remote controller (RC-986R), AAA batteries × 2, Quick Start Guide |
Caring for your Speakers and Amplifiers
To Keep your equipment safe these are some best practices to note. Please be advised that this is only to reduce the risk of misuse and is not an exhaustive list.
Speakers
- Speaker terminals are marked red and black, ensure your amplifier to the speakers are wired on the same colours
- Ensure no loose speaker wire from the red touches a loose wire from the black as this will lead to a short circuit and damage either the speaker, the amplifier or both.
- Not all speakers are designed to play at max volume, kindly consider the pairing of your amplifier and speakers
- Speaker cabinets cannot be replaced please handle with care.
AV & Stereo Amplifiers
- If your amplifier has HDMI ports, ensure all devices are off before plugging in the HDMI cable
- Turn off the amplifier before swoping out or adding speaker cable
- Amplifiers generate heat, place them in a well ventilated space. if possible avoid having anything on top of the unit.
- adding a surge protector can assist with power dips which are likely to damage your devices. Isotek and Furman are industry standard.
- Dusty environments can sometimes lead to accumulation of dust in the electronic components that might affect heat regulation
Shipping & Returns
- Free shipping on orders over R500 within the country.
- Standard delivery within 2–5 business days. Delays will be communicated. This might vary slightly depending on your location.
- Return items in original condition for a full refund. (unopened state)
- Returns that are open/unboxed will be subject to a handling fee. Refunds will only be processed after testing the unit.