MQA ? Pono? What's better than the CD?

the difficult issue is that most higher bit rate or bit depth releases have (or may have) used different masterings than an original CD release

so, you really never know if you are listening to the re-mastering or the putative better than CD stream or package

may not matter at the consumer level unless you are thinking of buying a spendy new piece of hardware

the thing to do may be to find where something has been downsampled to CD levels and run thru a good double blind test regime

or just forget about it and upgrade your speakers, or spend a few months dicking around with room treatments...

MQA - nonsense to get everybody to buy a new dac...  It will die before it starts.

MQA works with existing DAC - there is just no benefit. If enough source material becomes available supporting DACs will become available.