Originally Posted by hearrean
Actually Yamaha tech support told me it would not accept MPCM via HDMI & I called again today & asked to speak with a Tech Support Mgr. He confirmed the 661 will not accept MPCM via HDMI, it will only output PCM (or 2 channel). Even though the manual states it will, it will not!
I'm still a little confused as to exactly what 2 channel PCM means as opposed to MPCM, but I know that's a question I should ask over on the AV side of this forum, so I will. I do know, as I mentioned in an earlier thread, I've been running my HD-A2 off this 661 for about a year now and do get discreet sound from all channels even though the Yamaha's display only shows PCM.
But in any regard, the official (supposedly) word from Yamaha is that in order for me to get the lossless audio w/o having to upgrade to something like a 663, I will need to get the Panasonic 55 & utilize it's analog outs. Bummer, so I'm back to all the cables again!!
I think the confusion may be in how you're asking the question. How did you actually phrase it?
If you said something about listenting to lossless audio with the 661, one might think you're asking if it can decode bitstreams, which it can't. However, as others have mentioned from first hand experience, it's fully capable of processing MPCM up to 7.1. So a player, like your HD-A2 or the 35/55 that decodes lossless to MPCM and outputs over HDMI will work just fine. The 661 even has the computing muscle to matrix 5.1 MPCM to 7.1, IIRC; something that other receivers in its price class and generation had trouble with.
Also, another post referred to the 661 as HDMI v1.1, but it's actually 1.2. Can't remember what 1.2 gains you over 1.1, though.
Enjoy your 35 and spend the money on software and a Monoprice HDMI switcher since you've got more HDMI devices (cable, A2, 35) than inputs. :-)