- What's Included
Bring home THX Select2 Plus theater reference quality audio with the 7.2 channel TX-NR747 Network A/V Receiver, featuring mind-blowing dts:X and Dolby Atmos multi-dimensional audio formats. Onkyo's high-current amplification system drives speakers with maximum impact and fidelity at 175 watts per channel. UltraHD video capability is equally impressive, with eight HDMI 2.0a terminals including dedicated HDCP 2.2 compatible inputs for premium 4K video content and two HDMI outputs for video in separate rooms. The TX-NR747's high-grade 384kHz / 32bit AKM DAC unlocks the full potential of any audio format. Conveniently stream audio over built-in Wi-Fi, Bluetooth, Airplay, or Internet music services, including Spotify Connect and Pandora. Use the free Onkyo Remote app to stream audio stored on mobile devices or 24-bit Hi-Res PCM or 5.6 MHz DSD audio from your home network over DLNA, and control playback in two zones. Plus, the TX-NR747 has a phono equalizer input to connect a turntable and updated AccuEQ for precise room acoustic calibration.
THX®-Certified Amp Quality
THX certification guarantees the same high volume, low distortion sound you experience in a commercial theater in your listening room. The TX-NR747 meets the most demanding & rigorous performance certification: it has to pass 75 test categories, 2,000 tests, covering 14,000 data points. THX® Select2™ Plus is recommended for screen-to-seat viewing distances of 10-12 feet.
DTS:X is a next-generation object-based surround sound technology that includes height to deliver a fully-immersive listening experience. DTS:X provides listeners the ultimate in flexibility, immersion, and interactivity. Unlike channel-based audio, you will be able to personalize your audio experience. For example, you can turn 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.
Ready for 4K UltraHD
The latest HDMI specification and HDCP 2.2 compatibility support the latest formats and technologies planned for Hollywood content. This latest HDMI spec offers a significant increase in bandwidth (up to 18Gbps) to support new features such as [email protected]/60 (2160p), which is 4 times the clarity of 1080p/60 video resolution, and 4:4:4 color space.
This Onkyo AVR enables transmission of High Dynamic Range (HDR) formats, and provides enhanced picture quality by simultaneously enabling greater detail for both the dark and bright parts of an image.
Bluetooth / Wi-Fi® with Pandora, Spotify, and AirPlay
The TX-NR646 has AirPlay, Wi-Fi and Bluetooth technologies built in. The free Onkyo Remote app puts a range of 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. Or pair up and enjoy whatever's playing on your Bluetooth-compatible device for huge cinematic sound.
This receiver comes loaded with Spotify, Pandora, SiriusXM Internet Radio, Slacker and TuneIn. You can select a station and search for music available on these services via the Onkyo Remote app on your phone. You'll never be short of your favorite music to enjoy.
Hi-Current Amp Design for Authentic Sound Reproduction
From the quietest dialog passages to booming action scenes, Onkyo's exclusive amplification technology dramatically enhances the audio dynamics of your movies, music and games.
This Wide Range Amplifier Technology (WRAT) is at the core of Onkyo's signature sound. The innovative amplifier design is comprised of three key elements:
(1) a low negative feedback design for punchy, true-to-life sound, and cleaner audio across the frequency ranges;
(2) closed groundloop circuits to reduce individual circuit noise and keep the ground potential free of distortion; and
(3) a high instantaneous current to handle big dynamic gains.
This allows massive power at 170 W/Ch (6 Ohms, 1 kHz, 0.9% THD, 1 Channel Driven, FTC) and 100 W/Ch (8 Ohms, 20 Hz–20 kHz, 0.08% THD, 2 Channels Driven, FTC).
384 kHz/32-bit Hi-Grade DAC
No matter what you're listening to, it will sound powerfully full, clean and clear. A premium-quality AK4458 digital-to-analog converter from Asahi Kasei implements unique low-distortion filtering technologies for clear sound, and unlocks the full potential of any audio format, including compressed, lossless, and hi-res audio (MP3, WMA, WMA Lossless, FLAC, WAV, OggVorbis, AAC, Apple Lossless, DSD 5.6 MHz, LPCM, and Dolby TrueHD)
Classic Analog & Hi-Res Digital
This receiver is engineered for hi-res analog and digital audio. You can spin your classic vinyl and hear it in all its analog glory and stream your networked hi-res digital files. Both analog and digital audio sound its warmest and clearest. The TX-NR646 supports hi-res audio playback, gapless playback, and the ability to play DSD, Double DSD, FLAC and ALAC along with other Hi-Res formats.
Powered Zone 2 and Zone 2 Line-Outs
The TX-NR646 features Powered Zone 2 and Zone 2 line-outs. This lets you assign two channels to power audio in a room equipped with speakers. An existing hi-fi system in a third room can also be connected via the line-out, enabling the use of the A/V receiver as a pre-amp and audio server.
General Brand Onkyo Brand Product No. TX-NR747 UPC 751398012235 Dimensions 17 1/8" x 6 7/8" x 14 15/16" (435 x 175 x 379 mm) Weight 24.3 lbs (11.0 kg) Amplifier Power Watts/Ch (6 Ohms 1kHz, 1 Channel Driven, FTC) 175, 0.9% THD Power Watts/Ch (8 Ohms 20-20kHz, 2 Channels Driven, FTC) 110, 0.08% THD Dynamic Power 250 W (3 Ohms, Front)
230 W (4 Ohms, Front)
130 W (8 Ohms, Front))
THD+N (Total Harmonic Distortion + Noise) 0.08% (20 Hz–20 kHz, Half Power) Input Sensitivity and Impedance 200 mV/47 k-ohms (Line)
2.5 mV/47 k-ohms (Phono MM)
Rated RCA Output Level and Impedance 100 mV/2.2 k-ohms (Zone 2 Line Out)
200 mV/470 ohms (Subwoofer Pre Out)
Phono Overload 70 mV (MM, 1 kHz, 0.5%) Frequency Response 10 Hz–100 kHz/+1 dB, -3 dB (Direct Mode) Tone Control ±10 dB, 20 Hz (Bass)
±10 dB, 20 kHz (Treble)
Signal-to-Noise Ratio 100 dB (Line, IHF-A)
80 dB (Phono MM, IHF-A)
Speaker Impedance 4 or 6 ohms–16 ohms Video Video 1.0 Vp-p/75 Ohms (Component Y)
0.7 Vp-p/75 Ohms (Component PB/CB, PR/CR)
1.0 Vp-p/75 Ohms (Composite)
Component Video Frequency Response 5 Hz–13.5 MHz/+0 dB, -3 dB Tuner FM 87.5 MHz–107.9 MHz AM 530 kHz–1,710 kHz FM/AM Preset Memory 40 stations Electrical Power Supply AC 120 V~, 60 Hz Power Consumption 6.9 A No-Sound Power Consumption 70 W Standby Power Consumption 0.1 W
• Owner's Manual
• Owner's Manual (Spanish and French)
• Advance Owner's Manual
• 1x - AV Receiver
• 1x - Indoor FM antenna
• 1x - AM loop antenna
• 1x - Remote controller (RC-898M)
• 2x - Batteries (AA/R6)
• 1x - Power cord (Taiwanese models)
• 1x - Speaker setup microphone