When Sony describe the HDMI output as “Audio only” is it a proper HDMI ARC port? TV manufacturers seem to apply their own non-standard implementations of the HDMI standard with total disregard for compatibility with other brands, and this often seems to cause problems.
In practice it usually seems to be more reliable to connect external devices via the TV so that their sound output reaches the Muso/stereo amp/soundbar regardless of the TV’s input source.
HDMI ARC (Audio Return Channel) is a recognised standard to which some manufacturers conform. Is seems that Sony are being vague about about this if the port is just described as Audio only.
If the TV is set to output PCM stereo it should work into the Muso, either through HDMI ARC or optical.
The Mu-so will only work with a HDMI ARC connector, which is only found on a TV. Therefore, the standard HDMI output on your player will never work. Use the optical output on the player to connect to the Mu-so.
If you connected the Mu-so to your TV you would have to activate the HDMI audio output on the TV and ensure it is set to PCM.
The Mu-So HDMI is ARC only - so you can’t connect any HDMI bit of kit and use it as an input, just an ARC enabled TV set. Make sure you are connected to an ARC enabled HDMI socket on the TV set and that ARC output is enabled in any menu. Also in the menu make sure that you select PCM stereo, not multichannel bitstream. If you still have no joy then check for any firmware updates on the set. Failing that, contract Naim tech support, as HDMI compatibility from one device to another tends to be something of a moving target…
Thanks for all the info. I didn’t do enough research before purchasing the Muso. I didn’t know the HDMI is ARC only and that it doesn’t support DSD playback or regular HDMI from a player.
Other than that, the Mu-so 2 Bentley Edition sounds quite good. Slightly better than the regular version I might add. I believe this is due to the wooden chassis (different resonance) and taller (7mm) and heavier (800g) acrylic plinth.