Marantz sr7009, ATMOS, and HDCP....


Hi All,
I need help. Please be patience as I am learning a lot and some things will sound novice.

My setup includes:
  1. Marantz sr7009 in a 5.1.4 setup
  2. Apple TV 4K (latest version)
  3. Roku 4K
  4. 4k UHD DVD player
  5. Xbox One X
  6. Vizio P65-C1
All of these devices connect to the TV and from the TV and I send audio to the receiver using a optical cable. The DVD player has 2 HDMI outputs (audio and video) so I am covered there, but I recently discovered that optical cables can't carry Atmos back to the received and that HDMI sources have to be connected to the receiver (as one of a few requirements).

I connected the Apple TV to the receiver and tried to play a UHD movie, and there is an error that the format is not compatible (ordered a HDMI 2.2 cable arriving tomorrow), but I assume this issue is related to receiver limitations and can't allow UHD content or maybe related to non-HDCP 2.2 compliance... maybe? Maybe is one of the same... idk

I don't want to spend $1500+ for a new receiver, so I am looking for advice about possible options that would allow me to maximize my setup.

I am willing to sell my receiver if I have to, but I rather not... Thank you for the help


Distinguished Member
THe ATV uses something called Dolby MAT to fascilitate the output of Atmos. What this basically means is that the ATV decodes the DD+ encoded element of the audio package and output this as multichannel PCM along with the Atmos metadata.

You can find how to configure the ATV to do this here:

There's no reason why your AV receiver wouldn't be able to recognise this if connected to it directly via HDMI. You'd not be able to convey this via optical or ARC though. eARC yes, but not conventional ARC. Conventional ARC is limited to just 2 channels of PCM data and cannot convey multichannel PCM audio. THe same is true of S/PDIF optical.

The error has nothing to do with your cables and you don't need a 48Gbps capable cable. It serves no pupose what so ever top use such a cable with your AV receiver because it predates HDMI version 2.1 and is limited to the 18Gbps associated with HDMI version 2.0.


Thanks @dante01

The receiver detects Dolby Atmos audio from the ATV, but when I try to play a Movie, the ATV detects that the TV can't support it.

Today, I swapped the cable from the ATV to the Receiver for a HDCP 2.2 cable, I know the receiver is not capable of 2.2, but I tried it just to make sure there was no limitation.

When I tried to play a movie "This video can't be played" it looks like your HDMI cable or connection doesn't support HDCP...

Then I used that cable from the receiver to the TV and the same error occurred. The TV is detecting 4K SDR 60 Hz.

I then connected the ATV to the TV directly, and I get 4K Dolby Vision at 60Hz resolution.

It looks like I will either get the "best" picture or the "best" audio, but not both. Thoughts?

I wonder if there is a device that would allow me to split the audio video so I can get the best of both worlds without having to replace the receiver.


Distinguished Member
The ATV will not look at the audio capabilities of your TV if the ATV is connected directly to the AV receiver. The AV receiver is the device dealing with the audio and it doesn't pass audio through and out to your display. The ATV is only concerned with the audio capabilities of your AV receiver unless you've got the ATV connected to the TV? If this were the case then you'd not be able to access the multichannel PCM audio being sent with the Atmos metasdata because your AV receiver isn't eARC enabled.

There's no such thing as an HDCP 2.2 cable. Cables have nothing what so ever to do with HDCP.

HDCP is a form of diogital video copyright protection used mainly in association with 4K UHD video sources.

The issue you are having has nothing to do with the audio format and is a case of the ATV not detecting that the AV receiver is HDCP 2.2 compliant.
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Distinguished Member
I'd suggest you try the following:

1. Disconnect HDMI from Apple TV and the AV receiver

2. Disconnect the Power from both devices

3. Reconnect Power and HDMI to all devices

You may also want to try including the connection from the AVR to the TV and also try disconnecting it as well as the power supply from the mains.

You may find this of interest:

Other potential fixes include resetting the ATV, but try the above first.

It is the ATV at fault and it is a common issue many have experienced.
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Thanks for the advice and time to help me out.

I tried all of the steps above, tried different cables, different TVs inputs and nothing worked; however, I found and tried the device below and now I can get Dolby Vision ATV (TV), and Dolby Atmos. I don't know how durable the splitter is, but it's a good chance to take instead of having to replace the AVR.

Search in Amazon for this $30 device:

4K HDMI Splitter 1x2 HDR D-o-l-b-y Vision Atmos Down Scaler - HDMI Scaler 4K 1080P Sync,4K 60Hz 4:4:4 HDMI Splitter 1 in 2 Out HDCP2.2, EDID 4K5.1/4K7.1/ Copy, for Game Xbox PS5 1080p120Hz Roku SP12H2​

Any thoughts?

Separate issue now: is that the Xbox One X sounds like a helicopter when Atmos is activated ... I haven't been able to resolve this.

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