Product Comparison: Onkyo TX-RZ3100 vs Marantz SR8012

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General Specifications
About the Product
This Onkyo receiver can join your existing Sonos Home Sound System, or be the start of a new one, just by pairing it with a Sonos Connect. Whatever audio is playing on your phone, tablet, or PC app can be streamed to the receiver with Bluetooth wireless technology.
Experience the peak of Marantz AV expertise in the new flagship SR8012 – the first-ever 11.2-channel Marantz receiver that raises the bar for home theater. Envelop yourself in thrilling and immersive surround sound with Dolby Atmos, DTS:X and Auro 3D.
Key Specs
Number of Channels
Watts Per Channel RMS
140 Watts
140 Watts
Total Harmonic Distortion
0.08 %
0.05 %
Signal/Noise Ratio
108 dB
102 dB
What customers say about "Key Specs"
Onkyo TX-RZ3100 THX-Certified 11.2 Channel Network A/V Receiver
  • This beast is pretty heavy and big but the sound is clear and Rich. It is spectacular and the bass signal sent to the power subwoofer is simply phenomenal.
  • The setting was very simple and the remote control is great.
  • The receiver is for great a processing surround sound. HDMI switching not so much.
  • Sounds great. Very clear and detailed sound. No distortion at all high volume levels. The bass is superb.
  • So far, I have had no issues with the TX-RZ3100, it sounds fantastic. The set up was easy and the EQ calibration worked better than expected.
Marantz SR8012 Receiver - First-Ever High Performance 11.2 Channel
  • This thing is a beast. It sounds beautiful at any volume.
  • The sound and build quality of this receiver is top notch. I replaced a Yamaha RX-Z11 with this Marantz SR8012 and it is a nice improvement.
  • Great sound quality. Solid build. Audessy setup seems fairly accurate.
  • This is High End and just about perfect in every way. Sound is just too amazing and looks are beautiful. Built quality is superb by the way.
  • I'm using the Marantz 8012 for music and home theater in the 11.2 configuration. I previously had a different brand in a 7.2 configuration and this is quite an improvement.
Size & Weight
7.94 in.
9.87 in.
17.13 in.
17.37 in.
17.81 in.
18.13 in.
43 lbs.
38.36 lbs.
Receiver Type
A/V Receiver
A/V Receiver
Satellite Radio Tuner
Number Of FM Presets
Minimum Impedance
4 Ohms
4 Ohms
Frequency Response
20 - 20000 Hz
20 - 20000 Hz
THX-Certified Sound, Dolby Atmos, Dolby TrueHD, Dolby Digital Plus, Dolby Surround, DTS:X, DTS Neural:X, DTS-HD Master Audio, DTS-HD High Resolution Audio, DTS 96/24, Compressed Music Enhancer, Full 4K Ultra HD Support, HDR / Dolby Vision, Works with Sonos, Chromecast built-in
Full 4K Ultra HD Support, IMAX Enhanced, Dolby Atmos, DTS:X, Auro-3D, AirPlay Capability, Works with Amazon Alexa, Works with Google Assistant, Apple Siri voice control, Smart TV Connectivity, Dolby TrueHD, Dolby Digital Plus, Dolby Surround, DTS Neural:X, DTS Virtual:X, DTS-HD Master Audio, DTS-HD High Resolution Audio, DTS 96/24, Compressed Music Enhancer, HDR / Dolby Vision / HLG
What customers say about "Features"
Onkyo TX-RZ3100 THX-Certified 11.2 Channel Network A/V Receiver
  • The receiver turns on when you access the sonos module with the smartphone. It is wi-fi and Bluetooth capable. A great purchase.
  • Having a receiver with dobly atmos has made a tremendous difference in the quality of my surround sound.
  • You can use an app on your phone for connected things, but my older TV and satellite receiver need a traditional remote.
  • The remote is not as good as the last Onkyo receiver I had but it does the job.
  • I was also super bummed to find out they decided to cheap out by not providing a programmable remote.
Marantz SR8012 Receiver - First-Ever High Performance 11.2 Channel
  • The set up was pretty easy and the speaker microphone was a nice touch. I turned the bass up a few decibels higher than what the mic adjusted to and it sounds awesome.
  • This receiver has you covered from all major audio formats for one theater and it is shockingly musical.
  • The setup is clear and easy to accomplish and has many features for difficult room acoustics. The build quality of their components is excellent.
  • The receiver has also been updated to include IMAX Enhanced support, and decodes all of the latest audio formats, including Dolby Atmos, DTS:X, and Auro-3D.
  • The application looks unfinished because it constantly refuses to control my receiver.
Speaker Connection Type
Ethernet Port(s)
Wireless Connection
Bluetooth, Wi-Fi
Bluetooth, Wi-Fi
Wireless Multi-Room Audio
6x Analog Stereo RCA, Phono In, 3x Digital Optical, 2x Digital Coaxial, 2x Composite, 2x Component, USB, 8x HDMI, Mic 3.5mm, Ethernet, Antenna, Bluetooth/wireless LAN antenna, Remote control
5x Composite, 3x Component, 8x HDMI, 7x Analog Stereo RCA, Phono (MM), 2x Digital Optical, 2x Digital Coaxial, 7.1 Multichannel, Mic 3.5mm, USB, Antenna, Bluetooth/wireless LAN antenna, Ethernet, Flasher In, Remote control
Component, 2x HDMI, Phones, Line Out RCA, RS-232, Trigger Out, 11x Speakers, 2x Subwoofer, PRE OUT connectors RCA
2x Composite, Component, 3x HDMI, PRE OUT connectors RCA, 2x Subwoofer, 11x Speakers, Phones, Remote control, 2x DC Out, RS-232C
What customers say about "Connectivity"
Onkyo TX-RZ3100 THX-Certified 11.2 Channel Network A/V Receiver
  • I also have a sonos connect unit connected to the Onkyo with a fiber optic cable.
  • Full set of pre-outs allows connection of external amps. Lots of connections. Simple setup menu. Powerful.
  • Since I've had the unit, it's been finicky with 4K rated HDMI cables especially with Dolby Vision enabled, occasionally the picture would flicker, especially with a 4k gaming console.
  • Recently the HDMI output died, no picture was passed to the TV, but the sound was working.
  • Connecting to the built in chromecast is a joke, almost never works.
Marantz SR8012 Receiver - First-Ever High Performance 11.2 Channel
  • The receiver also supports two key features from the upcoming HDMI 2.1 spec: eARC and ALLM.
  • Ease of connectivity is aided by the fact that there's a wide stretch of real estate between the speaker connections on the bottom and the HDMI ports up top.
  • All told, the SR8012 features seven back-panel HDMI 2.0 inputs with support for HDCP 2.2 copy protection. All HDMI ports do an excellent job.
  • ARC and CEC are not working, and there is an echo being added to all surround formats during processing. Needless to say I brought the unit back.
  • Receiver had started losing connection to the internet. Every 5-10 seconds, the connection appeared and disappeared.
Warranty / Certifications
Manufacturer Warranty
3 year(s)
3 year(s)
Other Information
3099.00 $
2999.00 $

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