Anthem MRX 740 8K
- 7.2 channels
- 11.1 channel processing
- 140 W (8 Ω, 1 kHz, 2 channel driven)
- HDMI 2.1
- Dolby Atmos, DTS:X capable
- HDR10, HDR10+, Dolby Vision, 8K Passthrough
- AirPlay 2, Chromecast
- Ethernet, Wi-Fi, Bluetooth
- USB and Phono inputs
- 7.2 channels
- 7.1 channel processing
- 100 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven)
- Dolby Atmos, DTS:X capable
- HDR10, 4K Passthrough
- AirPlay, DLNA
- Ethernet, Wi-Fi, Bluetooth
- USB and Phono inputs
Disclosure: We earn money from the affiliate links to products associated with content in this article.
Here we are comparing Anthem MRX 740 8K to Onkyo TX-NR646 to reveal their common strengths and weaknesses as well as the differences between them which will help you in making a correct decision before the purchase. Both receivers have 7 channel amplifiers.
Advantage of Anthem MRX 740 8K
This section shows those features and specifications which are the reason to choose Anthem MRX 740 8K over Onkyo TX-NR646.
Anthem MRX 740 8K has higher DAC specs, more channel processing, bigger power supply and higher signal to noise ratio. It supports IMAX Enhanced. It has analog pre-outs. In video department only Anthem MRX 740 8K supports HDCP 2.3 copy protection, Dolby Vision and Hybrid Log Gamma.
|Anthem MRX 740 8K||vs||Onkyo TX-NR646|
|Certified 4 Ω Performance||vs|
|Higher DAC Specs||768 kHz/32 Bit||vs||384 kHz/32 Bit|
|More Channel Processing||11.1||vs||7.1|
|DTS Neural:X||vs||after firmware update|
|Enhanced Audio Return Channel (eARC)||vs|
|Newer HDCP Version||2.3||vs||2.2 (3 inputs / 2 outputs)|
|BT.2020 color space||vs|
|Auto Low Latency Mode Pass-through||vs|
|Video Signal Passthrough||up to 8K 50/60Hz and 4K 100/120Hz 4:4:4||vs||up to 4K/60p (RGB/YCbCr4:4:4/YCbCr4:2:2, 24 bit)|
|More HDMI Outputs||3 (2 for MAIN, 1 for ZONE2)||vs||2 (simultaneous)|
|More 8K Inputs||7||vs|
|More Optical Inputs||3||vs||2|
|More Optical Outputs||1||vs|
|More Coaxial Inputs/Outputs||2||vs||1|
|More Analog Pre-Outs||11.2||vs||0.2|
|Zone 2 Outs||HDMI, Pre Out||vs||RCA Line Out|
|+12V Trigger Output||3||vs||0|
|Remote (IR) Input/Output||1 / 0||vs||0 / 0|
|Detachable Power Cord||vs|
|Bigger Power Supply||485 W||vs||6.4 A|
|Higher S/N Ratio (Line, IHF-A)||110 dB||vs||100 dB|
Advantage of Onkyo TX-NR646
This section shows those features and specifications which are the reason to choose Onkyo TX-NR646 over Anthem MRX 740 8K.
Only Onkyo TX-NR646 supports DSD streaming via HDMI and USB, Pandora, Deezer and SiriusXM.
|Anthem MRX 740 8K||vs||Onkyo TX-NR646|
|DTS Neo||vs||Neo:6 until firmware update|
|DSD via HDMI||vs||2-ch/Multi-ch Input|
|DSD via USB||vs||2-ch Input|
|More HDMI Inputs||7||vs||8 (1 front)|
|USB Input||for factory service||vs||1 (Rear)|
|More Analog Audio Line Inputs||4||vs||7|
|More Composite Video Inputs||vs||3|
|More Component Video Inputs||vs||2|
|Front A/V Inputs||vs||HDMI|
|More Powered Zones||vs||2|
|SiriusXM Internet Radio||vs|
|More Speaker Terminals||7||vs||9|
|More Large Speaker Terminals||7||vs||9|
Common Strengths and Weaknesses
Here we list common strengths and weaknesses of both receivers.
|Auto Speaker Calibration System with Mic.|
|New HDCP Version|
|4K or 8K Video Passthrough|
|Many HDMI Inputs|
|No Front Wide Channel Support|
|No Dolby Atmos Height Virtualization|
|No Auro 3D with Auro-Matic Upmixer|
|Does not Work with Amazon Alexa|
|Anthem MRX 740 8K||Onkyo TX-NR646|
7 channel Class A/B Amplifier: Anthem MRX 740 8K features 7 channel power amplifier with Class A/B design on Channels 1-5 and Class D design on the rest. It is rated at 140 W (8 Ω, 1 kHz, 2 channel driven) and is able to drive 4 ohm speakers.
7 channel Amplifier: Onkyo TX-NR646 features 7 channel power amplifier. It is rated at 100 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven).
- WRAT (Wide Range Amp Technology): Onkyo TX-NR646 features Onkyo’s Wide Range Amp Technology (WRAT) circuit layout that prevents phase shifting by pushing the roll-off point higher than the listening-level frequency. Amplifying sound without phase shift creates an uncommonly well-focused and realistic audio image. If phase shift occurs and signal timing is not accurate, then neither is the resulting audio image.
Anthem MRX 740 8K's and Onkyo TX-NR646's amplifiers can be assigned for different speaker configurations.
- Dolby Atmos Configurations: The following speaker configurations are supported for Dolby Atmos:
- Anthem MRX 740 8K: 5.2.2 with internal amplifier and 5.2.4, 7.2.2 with addition of external 2 channel amplifier and 7.2.4 with addition of external 4 channel amplifier.
- Onkyo TX-NR646: 5.2.2 with internal amplifier.
- DTS:X Configurations: The following speaker configurations are supported for DTS:X:
- Anthem MRX 740 8K: The speaker configurations for DTS:X are the same as for Dolby Atmos - 5.2.2 with internal amplifier and 5.2.4, 7.2.2 with addition of external 2 channel amplifier and 7.2.4 with addition of external 4 channel amplifier.
- Onkyo TX-NR646: The speaker configurations for DTS:X are the same as for Dolby Atmos - 5.2.2 with internal amplifier.
- Configurations without height channels: There are also other speaker configurations available which do not include height channels:
- Anthem MRX 740 8K: 5.2, 7.2 with internal amplifier.
- Onkyo TX-NR646: 5.2, 7.2 with internal amplifier.
- Bi-Amp: You can bi-amp Anthem MRX 740 8K's and Onkyo TX-NR646's front left and right speakers. During bi-amplification two amplifiers are used for one speaker. One amplifier powers the midrange and tweeter section of the speaker and another amplifier powers the low frequency woofers. Each amplifier is less loaded and performs better. In order to use this feature speakers must have 2 pairs of connectors.
Anthem MRX 740 8K and Onkyo TX-NR646 support Dolby Atmos. It is a cinematic audio format in which sounds exist as individual entities, called audio objects. In Dolby Atmos, any sound can exist as an independent audio object, free of channel restrictions. They can be precisely placed and moved anywhere in your room, including overhead, to flow above and around you in three-dimensional space. Through the use of audio objects, overhead sound, and all the richness, clarity, and power of Dolby sound, Dolby Atmos turns your room into an amazing place for entertainment. The format supports up to 128 simultaneous independent audio objects in a mix for rich, realistic, and breathtaking sound. It recreates the director's original concept through descriptive metadata to provide customized playback for home theater and delivers sounds above you through overhead speakers, special upward-firing Dolby Atmos speakers, or a Dolby Atmos enabled sound bar.
- Dolby Surround Upmixer: Both models support Dolby Surround Upmixer. If the content is not mixed in Dolby Atmos then the Dolby surround upmixer will expand the audio to all channels including ceiling speakers. The upmixer has replaced the Dolby Pro Logic II family with improved upmixing algorithms.
Anthem MRX 740 8K and Onkyo TX-NR646 support DTS:X. A technique used in DTS:X is similar to the one used in Dolby Atmos. Instead of a fixed number of channels, DTS:X defines object locations from the listener in polar coordinates. An a/v receiver then dynamically renders sound according to the current speaker configuration. The speaker layout employed by DTS:X is the sum of Dolby Atmos and Auro-3D. It has standard 7.1 channel base layer, a 5 channel height layer above the base layer on the front and side walls, and 3 rows of speakers on the ceiling.
- DTS Neural:X: Anthem MRX 740 8K supports DTS Neural:X which is an advanced upmixer that can take non DTS:X content and upmix it to the DTS:X speaker layout. It has replaced the DTS Neo family with improved flexibility.
- DTS Virtual:X: Anthem MRX 740 8K supports DTS Virtual:X which bridges the gap between DTS:X codec and the reality of so many consumers' homes, allowing you to enjoy multi-dimensional sound regardless of room size, layout, or speaker configuration. If you have a limited speaker setup you will miss a full immersive potential of your entertainment system. DTS Virtual:X adds height and surround audio effect to your system without adding height speakers. It works with multiple configurations and delivers immersive sound experience out of 5.1 or even 2.1 speaker layouts.
- DTS Dialog Control: Both models have DTS Dialog Control. This function adjusts the dialog levels during playback of the DTS:X stream. It allows you to separately increase the dialog levels in contrast with the background sound and hear dialog easily even under noisy circumstances.
Enhanced Audio Return Channel (eARC)
Anthem MRX 740 8K supports Audio Return Channel (ARC) feature allows the compatible TV to send audio signal to the a/v receiver through the same HDMI cable which is used to send audio and video signals to the TV. So one HDMI cable is used to transfer audio signal in both directions. New Enhanced ARC will support uncompressed audio formats such as Dolby Atmos, DTS:X, Dolby TrueHD and DTS HD Master Audio whereas the previous ARC could support only Dolby Digital, Dolby Digital Plus, DTS, DTS HD, and PCM.
- Compressed Music Enhancer: Onkyo TX-NR646 features Compressed Music Enhancer which enhances the quality of the music files with lossy compression.
- Advanced Music Optimizer: Compressed music enhancement in Onkyo TX-NR646 is done by Onkyo’s Advanced Music Optimizer. While MP3 or AAC files may sound fine through the headphones of your portable digital player, the limitations of these files can be exposed when played back through a quality home entertainment system. This is because a significant amount of high-frequency bit information is lost during the file-compression process. To counter this, Onkyo has designed the Advanced Music Optimizer to compensate for lost bit information and improve the quality of compressed audio signals. This results in a clearer and more expansive sound. Also included in this technology is a loudness correction feature that further improves the audio character of compressed files.
Anthem MRX 740 8K comes with Anthem Room Correction (ARC Genesis) and Onkyo TX-NR646 comes with AccuEQ Advance room correction system.
- AccuEQ: First, AccuEQ detects the presence of speakers and evaluates the impedance of each. Next, it pinpoints their distance relative to the main listening position using the mic and sets suitable sound-pressure levels. Then it selects the optimal crossover frequency so that deeper bass rolls smoothly off to the subwoofer. Finally, AccuEQ performs frequency response equalization based on room-acoustic and speaker data collected via microphone. The sound-field is now tailored around the listening position, resulting in a more immersive and realistic in-film experience.
Anthem MRX 740 8K comes with 7 HDMI 2.1 inputs with 8K support. It has 3 outputs - 2 for MAIN and 1 for ZONE2.
Onkyo TX-NR646 comes with 8 HDMI inputs. It has 2 outputs which work parallelly and output the same signal.
- 8K/60Hz and 4K/120Hz Passthrough on Anthem MRX 740 8K: All inputs pass up to 8K 50/60Hz and 4K 100/120Hz 4:4:4 video signal.
4K/60Hz Passthrough on Onkyo TX-NR646: All inputs pass up to 4K/60p (RGB/YCbCr4:4:4/YCbCr4:2:2, 24 bit) video signal.
- Analog To HDMI Upconversion: Onkyo TX-NR646 supports analog to HDMI Upconversion, so you can input your analog video sources and output them digitally via HDMI. This means that you will need only one HDMI cable to connect to your TV.
- BT.2020 Color Space: BT.2020 or Rec. 2020 is a color standard which delivers a wider color gamut compared to Rec. 709. It covers approximately 75% of the total visual spectrum while the Rec. 709 covers only 35% (available on Anthem MRX 740 8K only).
- HDCP Copy Protection: Anthem MRX 740 8K is HDCP 2.3 and Onkyo TX-NR646 is HDCP 2.2 compliant which is a requirement for 4K/HDR copy-protected content transmission.
- 3D Ready: Both receivers are able to pass 3D video through HDMI.
HDR (High Dynamic Range)
Anthem MRX 740 8K supports HDR10, HDR10+, Dolby Vision and Hybrid Log-Gamma.
Onkyo TX-NR646 supports HDR10
High dynamic range video has greater dynamic range than standard dynamic range (SDR) video with brighter whites and deeper blacks. The result is greater contrast and more details in dark and bright areas, better color and depth.
- HDR10: HDR10 uses the wide-gamut Rec. 2020 color space. It sends static metadata via video stream to the TV which calibrates its screen brightness and color according to that. HDR10 supports 10-bit color which corresponds to 1024 shades of the primary RGB colors. It is technically limited to a maximum of 10,000 nits peak brightness, however common HDR10 contents are mastered with peak brightness from 1,000 to 4,000 nits.
- HDR10+: HDR10+ is an HDR video technology that adds dynamic metadata to HDR10 source files. The dynamic metadata are used to adjust brightness levels on a scene-by-scene or even frame-by-frame basis. HDR10+ supports maximum of 10,000 nits peak brightness and 10-bit or more (up to 16-bit) color bit depth. It uses Samsung's dynamic metadata defined in SMPTE ST 2094-40.
- Dolby Vision: Dolby Vision is a set of technologies developed by Dolby Laboratories for high dynamic range (HDR) video. It covers content creation, distribution, and playback. Like HDR10+, it includes dynamic metadata that are used to adjust and optimize each frame of the HDR video to the consumer display's capabilities in a way specified by the content creator. Dolby Vision allows for a maximum resolution of 8K up to 12-bit color depth, maximum peak brightness of 10,000 nits and a color gamut up to Rec. 2020. It uses Dolby's proprietary dynamic metadata defined in SMPTE ST 2094-10.
- Hybrid Log-Gamma (HLG): The Hybrid Log-Gamma (HLG) is a transfer function developed mainly for HDR live video feed and over-the-air broadcasts. It is an HDR format that uses BT.2020 color primaries and a bitdepth of 10-bit. It is backward compatible with the transfer function of SDR and is designed to be better-suited for television broadcasting, where the metadata required for other HDR formats is not backward compatible with non-HDR displays. HLG defines a non-linear optical-electro transfer function, in which the lower half of the signal values use a gamma curve and the upper half of the signal values use a logarithmic curve.
Anthem MRX 740 8K is IMAX Enhanced certified. To qualify for IMAX Enhanced certification, 4K HDR televisions, projectors, sound bars, a/v receivers, loudspeakers, powered subwoofers and other premium home entertainment devices must meet carefully prescribed performance requirements established by IMAX, DTS and Hollywood's leading experts.
- What makes an IMAX Enhanced A/V receiver different from an A/V receiver with DTS:X technology? DTS:X technology is commonly found in most multi-channel A/V receivers on the market today. All IMAX Enhanced A/V receivers include DTS:X technology and deliver additional features, such as auto-sensing of IMAX Enhanced content, via IMAX Mode. IMAX Mode indicates that your A/V receiver supports fully immersive IMAX signature sound.
- IMAX Enhanced Content: IMAX Enhanced studio partners have announced IMAX Enhanced versions of movies that exclusively feature IMAX's signature picture, sound and scale.
- Picture: Stunning, ultra-vivid 4K HDR picture that utilizes the newest, proprietary Digital Media Remastering technology (DMR) developed by IMAX. DMR accurately reduces noise and grain under the filmmaker’s guidance to best optimize the content for a much higher-quality, higher-brightness display. Without this technology, high-dynamic range content can actually look worse than what was originally seen and intended by the filmmaker.
- Sound: IMAX and DTS have partnered with award-winning Hollywood sound mixers leveraging DTS:X codec technology integrated in home audio equipment and select televisions to deliver an IMAX signature sound experience with deeper bass and more dynamic range.
- Scale: Select IMAX Enhanced titles that were shot with IMAX-certified cameras or specially formatted for IMAX theatres feature its exclusive expanded aspect ratio, enabling viewers to see the full scale and scope of the picture on 4K HDR TVs.
- Streaming Services: IMAX Enhanced is now available on the world’s biggest streaming services, including Disney+, BRAVIA CORE, Tencent, iQiyi and more.
Anthem MRX 740 8K supports Auto Low Latency Mode (ALLM), Variable Refresh Rate (VRR) and Quick Frame Transport (QFT) for lag-free and smooth gaming.
- Auto Low Latency Mode (ALLM): Auto Low Latency Mode enables the ideal latency setting to automatically be set allowing for smooth, lag-free and uninterrupted viewing and interactivity. When the receiver detects a gaming signal it will enter ALLM. The signal will also be sent to the TV causing it to automatically switch to a low-latency, low-lag mode for gaming. Some functions will not be available on the receiver and TV during ALLM.
- Variable Refresh Rate (VRR): VRR enables a gaming source such as a console or computer to deliver video frames as fast as it can, which in many cases is slower than the normal static refresh rate. It allows the TV to adapt to certain frame rate which reduces or eliminates lag, judder and frame tearing for more fluid and better detailed gameplay.
- Quick Frame Transport (QFT): QFT reduces latency for smoother no-lag gaming, and real-time interactive virtual reality. It transports each frame at a higher rate to decrease display latency, which is the amount of time between a frame being ready for transport in the GPU and that frame being completely displayed.
Inputs and Outputs
- Phono Input: There is an MM phono input on Anthem MRX 740 8K and Onkyo TX-NR646 with built-in phono stage for connecting the moving magnet cartridge output of the turntable directly to the receiver.
- Analog Pre-Outs: Anthem MRX 740 8K has 11.2 preamplifier outputs which allows you to connect the receiver to the external power amplifier. You may want to use a high quality external amplifier for certain channels, usually for front L/R and center, and use the receiver to power the rest. Also, Anthem MRX 740 8K has 11 channel processing but has only 7 channel amplifier, so it needs external amplifier connected to the analog pre-outs in order to reach its maximum speaker configuration.
- Analog Line Inputs and Outputs: There are 4 pair of line inputs on Anthem MRX 740 8K and 7 pair of line inputs on Onkyo TX-NR646 for connecting sources with analog outputs. There are also 1 pair of line outputs on the receivers.
- Digital Inputs and Outputs: 3 optical inputs, 1 optical output and 2 coaxial inputs are available on Anthem MRX 740 8K and 2 optical inputs and 1 coaxial input are available on Onkyo TX-NR646 for digital audio connections.
- Headphone Output: There is a 6.3 mm (1/4") headphone output jack on the front panel of each receiver.
- Anthem MRX 740 8K
Inputs: 7 Outputs: 3 (2 for MAIN, 1 for ZONE2)
8K Inputs: 7.
- Onkyo TX-NR646
Inputs: 8 (1 front) Outputs: 2 (simultaneous)
8K Inputs: 0.
- Composite Video: Connect you VCR, Laserdisc player and other old video equipment with composite video cables.
- Anthem MRX 740 8K
Inputs: 0 Outputs: 0.
- Onkyo TX-NR646
Inputs: 3 Outputs: 0.
- Component Video: Component video connection gives you the higher quality video compared to the composite video connection. So in case your old DVD player and other equipment do not have an HDMI output but have Component video output use this connection over the composite one. resolution on Component video connectors.
- Onkyo TX-NR646 supports up to 480i/576i resolution on Component video connectors.
- Anthem MRX 740 8K
Inputs: 0 Outputs: 0.
- Onkyo TX-NR646
Inputs: 2 Outputs: 0.
Front A/V Inputs
- Anthem MRX 740 8K: None
- Onkyo TX-NR646: HDMI
Anthem MRX 740 8K
And in the end let us list all the available specifications of the receivers side-by-side.
|BASICS||Anthem MRX 740 8K||Onkyo TX-NR646|
|Model||MRX 740 8K||TX-NR646|
|Type||A/V Receiver||A/V Receiver|
|AMPLIFIER||Anthem MRX 740 8K||Onkyo TX-NR646|
|Front Wide Channel Support|
|Amplifier||Class A/B on Channels 1-5 and Class D on the rest|
|WRAT (Wide Range Amplifier Technology)|
|VLSC (Vector Linear Shaping Circuitry)|
|Optimum Gain Volume Circuitry|
|Continuous 6 Ω Rated|
|Certified 4 Ω Performance|
|Discrete Output Stage Circuitry|
|3-Stage Inverted Darlington Circuitry|
|Independent Block Construction (Amp/Preprocessor)|
|BTL (Bridged Transless or Bridging)|
|AUDIO||Anthem MRX 740 8K||Onkyo TX-NR646|
|Digital Signal Processing (DSP) Engine||Next-Generation DSP Platform||Dual 32-bit DSP for Powerful Advanced Processing|
|DAC||Asahi Kasei AK4458|
|DAC Specs||768 kHz/32 Bit||384 kHz/32 Bit|
|Maximum Channel Processing||11.1||7.1|
|Air Studios Monitor Certification|
|Dolby Atmos||up to 5.1.2 after firmware update|
|Dolby Atmos Height Virtualization|
|Dolby Atmos Music|
|Dolby Digital Plus|
|Dolby Surround Upmixer|
|Dolby Pro Logic|
|DTS:X||up to 5.1.2 after firmware update|
|DTS Neural:X||after firmware update|
|DTS Neo||Neo:6 until firmware update|
|DTS-HD Master Audio|
|DTS-HD High Resolution Audio|
|Auro 3D with Auro-Matic Upmixer|
|PCM||2-ch/Multi-ch Input||2-ch/Multi-ch Input|
|Music Playback via USB||FLAC, WAV, Apple Lossless, WMA, WMA Lossless, Ogg, MP3, DSD, AAC, LPCM, Dolby TrueHD|
|High Resolution Music Playback via USB and/or Network||up to 96 kHz|
|High Resolution Audio Formats via USB||FLAC, WAV, WMA Lossless, Apple Lossless, DSD, AAC|
|Multi-Channel Music File Playback via USB|
|DSD via HDMI||2-ch/Multi-ch Input|
|DSD via USB||2-ch Input|
|DSD to PCM Converter|
|Jitter Reduction||PLL (Phase Locked Loop) Jitter-Cleaning Circuit Technology for S/PDIF Audio|
|DTS Dialog Control|
|Dialog Level Adjustment||DTS:X only|
|Tone Control||Front L/R Channels|
|Compressed Music Enhancer||Advanced Music Optimizer (bluetooth included)|
|High-resolution Music Enhancer|
|THX Processing Mode|
|Audyssey Dynamic EQ|
|Audyssey Dynamic Volume|
|Audyssey Sub EQ HT|
|Phase-Matching Bass Boost||for Deep Bass and Clear Mid-Range|
|Pure Audio Mode|
|Pure Direct Analog Path Mode|
|Virtual Speakers||T-D (Theater-Dimensional)|
|Independent Subwoofer Outputs|
|CALIBRATION||Anthem MRX 740 8K||Onkyo TX-NR646|
|Auto Speaker Calibration System with Mic.||Anthem Room Correction (ARC Genesis)||AccuEQ Advance|
|VIDEO||Anthem MRX 740 8K||Onkyo TX-NR646|
|HDCP Version||2.3||2.2 (3 inputs / 2 outputs)|
|HLG (Hybrid Log Gamma)|
|BT.2020 color space|
|QMS (Quick Media Switching)|
|ALLM (Auto Low Latency Mode)|
|VRR (Variable Refresh Rate)|
|QFT (Quick Frame transport)|
|Video Signal Passthrough||up to 8K 50/60Hz and 4K 100/120Hz 4:4:4||up to 4K/60p (RGB/YCbCr4:4:4/YCbCr4:2:2, 24 bit)|
|Video Signal Upscaling|
|Analog To HDMI Upconversion||Component**, Composite|
|Component Video Upscaling|
|Analog to Analog Video conversion|
|Component Video Maximum Resolution||480i/576i|
|isf Certified Calibration Control|
|CONNECTIVITY||Anthem MRX 740 8K||Onkyo TX-NR646|
|Works with Amazon Alexa|
|Works with SONOS|
|Apple Product Connection||iPod, iPhone and iPad||iPod, iPhone and iPad|
|Remote App||Anthem Remote App||Onkyo Remote App for iPod touch/iPhone and Android-Powered Devices|
|InstaPrevue Input Source Prevue|
|HDMI Inputs||7||8 (1 front)|
|HDMI Outputs||3 (2 for MAIN, 1 for ZONE2)||2 (simultaneous)|
|USB Input||for factory service||1 (Rear)|
|USB DC Out Port|
|Analog Audio Line Input||4||7|
|Analog Audio Line Output||1||1|
|Composite Video Input||3|
|Composite Video Output|
|Component Video Input||2|
|Component Video Output|
|Front A/V Inputs||HDMI|
|Headphone Out||6.3 mm (1/4")||6.3 mm (1/4")|
|ZONES||Anthem MRX 740 8K||Onkyo TX-NR646|
|Zone 2 Outs||HDMI, Pre Out||RCA Line Out|
|Whole House Mode|
|+12V Trigger Output||3||0|
|Remote (IR) Input/Output||1 / 0||0 / 0|
|MISC||Anthem MRX 740 8K||Onkyo TX-NR646|
|On-Screen Display||Graphical Overlaid On-Screen Display (OSD) via HDMI with Quick Set-Up|
|IP Control for CI|
|Detachable Power Cord|
|ONKYO-RI System Control|
|RIHD (Remote Interactive Over HDMI)|
|On Screen Remote Programming|
|Bi-directional Remote Setup via GUI|
|RADIO||Anthem MRX 740 8K||Onkyo TX-NR646|
|SiriusXM Internet Radio|
|CONSTRUCTION||Anthem MRX 740 8K||Onkyo TX-NR646|
|Solid Aluminum Front|
|Large Speaker Terminals||7||9|
|Color-Coded Speaker Terminals|
|Transparent High-Grade Speaker Terminals|
|18mm Pitch High Grade Pre-outs|
|19mm-Pitch Audio Inputs|
|Gold plated RCA terminals|
|POWER||Anthem MRX 740 8K||Onkyo TX-NR646|
|Power Supply||AC 120 V, 60 Hz||AC 120 V, 60 Hz|
|Independent Power Supply||2|
|H.C.P.S. (High Current Power Supply)||Massive High Power Transformer|
|Power Consumption||485 W||6.4 A|
|No Sound Power||70 W|
|Standby Power||0.3 W||0.1 W|
|Capacitor Bank||8,200 µF|
|GENERAL||Anthem MRX 740 8K||Onkyo TX-NR646|
|ECO Mode / Hybrid Standby Function|
|Dimensions (W x H x D)||431.8 mm x 152.4 mm x 364 mm|
17" x 6" x 14-1/2" x
|435 mm x 173.5 mm x 329 mm|
17-1/8" x 6-13/16" x 12-15/16"
|Weight||15.1 kg (33.2 lbs)||9.4 kg (20.7 lbs)|
|SPECS||Anthem MRX 740 8K||Onkyo TX-NR646|
|Power Output (8 Ω, 20 Hz - 20 kHz, 2||100 W (0.08% THD)|
|Power Output (8 Ω, 1 kHz, 2||140 W (1% THD) on Channels 1-5, 60 W (1% THD) on Remaining Channels|
|Power Output (6 Ω, 1 kHz, 2||170 W (1% THD) on Channels 1-5, 75 W (1% THD) on Remaining Channels|
|Power Output (6 Ω, 1 kHz, 1 channel driven, FTC)||170 W (0.9% THD)|
|Maximum Effective Power Output (6 Ω, 1 kHz, 1 channel driven, JEITA)||175 W|
|Rated Power Output (6 Ω, 1 kHz, 1 channel driven, IEC)||160 W (1% THD)|
|Dynamic Power per Channel (3 Ω, Front)||240 W|
|Dynamic Power per Channel (4 Ω, Front)||210 W|
|Dynamic Power per Channel (8 Ω, Front)||120 W|
|THD||0.08% (20 Hz - 20 kHz, Half power)|
|Damping Factor||60 (Front, 1 kHz, 8 Ω)|
|Input Sensitivity and Impedance (Line)||200 mV/47 kΩ (Line)|
|Input Sensitivity and Impedance (Phono MM)||3.5 mV/47 kΩ (Phono mm)|
|Maximum Preout Level and Impedance||5.2 VRMS, 7.1 VRMS|
|Rated Headphone Jack Output Level and Impedance||32 Ω - 600 Ω|
|Phono Overload||70 mV (MM, 1 kHz 0.5% Direct)|
|S/N Ratio (Line, IHF-A)||110 dB||100 dB|
|S/N Ratio (Phono MM, IHF-A)||80 dB|
|Frequency Response (Analog In)||20 Hz - 30 kHz +/-0.2 dB||10 Hz - 100 kHz/+1 dB, -3 dB (Direct mode)|
|DSD Sampling Rates via HDMI||2.8 MHz, 5.6 MHz|
|DSD Sampling Rates via USB||2.8 MHz, 5.6 MHz|
|Video Input Sensitivity/Output Level and Impedance||1 Vp-p/75 Ω (Component Y)|
0.7 Vp-p/75 Ω (Component PB/CB, PR/CR)
1 Vp-p/75 Ω (Composite)
|Video Frequency Response||5 Hz - 100 MHz/+0 dB, -3 dB (Component)|
|Wi-Fi Standard||IEEE 802.11 b/g/n|
|Wi-Fi Terminal Frequency||2.4 GHz|
|Bluetooth Version||2․1 + EDR|
|Bluetooth Frequency||2.4 GHz|
|USB Terminal||5 V, 1 A|
|FM Frequency||87.5 MHz - 107.9 MHz|
|AM Frequency||522/530 kHz - 1611/1710 kHz|
* - 480i/576i and 480p/576p only
** - 480i/576i only
*** - no 1080p/24 upconversion
**** - 1080p signal is not converted