I have a Sony BDP-S370 Blu-Ray Player and Yamaha RX-467 and although both profess to work with 7.1 audio I can never seem to get them to work together.

The Sony says its playing DTS 7.1 but the Yamaha says it is only receiving 5.1 as that is all that lights up on the front.

I get all the lights and full 7.1 with another device so I have to assume its not the amp, however there are precious few settings on the Sony.

Any ideas why they might not work together or more importantly how to make them work together.

Anyone have a Yamaha RX-467 and can recommend another Blu-Ray player that works?

I have the Sony as its great for BBC iPlayer and LoveFilm...not so much Quriocity since they gave all my details to hackers...allegedly...sigh

Do you actually have any 7.1 audio source material?

Yes, I have several, including the new Tron: Legacy on Blu-Ray.

All of them show 7.1 on the Sony but none of them trigger 7.1 on the Yamaha.

I've tried connecting via the HDMI connector (high spec cable with Ethernet), Coax and Optical connections (including selecting those inputs! on the Yamaha)

Anyone have any ideas on this?

Yep, I do. You'll only get 7.1 via either 8 analogue audio connections from the player to the amp or via hdmi. The optical or coax SPDIF connections only support up to 5.1.

If, as you say, it doesn't work via hdmi, then you might have to update the cable to a more recent specification.

TTBOMK HDMI doesn't support Ethernet - that's a separate cable, the same as you plug into the back of a computer for an Internet connection. (if you aren't using wireless).

Something else occurs to me. The Sony doesn't have any analogue outputs, so contrary to the instructions you need to connect the HDMI to the Yamaha, then the Yamaha HDMI output to the TV.

Ahhh, I think I've sussed it. The Yamaha only supports 5.1.

So you can't get 7.1 out of it. Having said that, it does support the higher quality audio formats, it's just that they're represented in 5.1 mode only.

You can add a centre rear, but it needs a separate amplifier, and the sub must be active too.

My Cambridge AV Receiver is the same, in that respect. So no matter how hard you try you can't more than 6 channels of audio being output by the Yamaha.

Well, actually, my Cambridge supports 7 channels - 6.1. But I don't need a subwoofer - my main floorstanders go down to 31.5Hz at least, and I don't have a centre rear.