Meridian MQA

[Hifi_swlon]

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Assuming the technology is sound (and all reports appear to confirm that it is) then the key to its success is getting content providers on-board and that also appears to be something of a challenge.
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I've never heard it, but all the reports I read appeared to be about 50-50 as to whether its 'sound' or a bit of clever marketing... But, yes, the technology without the music (or a wide selection of hardware on which to receive its full benefits) kind of makes it unimportant in the immediate future IMO.

The comparison between MQA on the Explorer as an analogue source, and 24/192 on Devialet over AIR doesn't tell us much about MQA to my mind though ...