Not quite it, I referred to article in stereophool describing MQA
http://www.stereophile.com/content/meridian-explorer2-da-headphone-amplifier#rH198gSFmYIFf61Y.97
But yea. expected sound improvement due swapped sound modulation from frequency to time is actually silly to say at the least and "repairing" it" ??? Based exactly on what?
Tl;dr: Imo MQA format is a solution looking very hard for a problem, or just means to push more their own dacs.
Oh I see, the Explorer2. I bought it last year in anticipation of Hi-Res file streaming. I knew Hi-Res streaming was in the works and I was curious because I already knew the FLAC streams were great. I thought the little Explorer2 was a bargain because even with the standard FLAC files I was already streaming - it sounded pretty good. I run the analog out right to my amp.
My listening is 99% streaming nowadays because with Tidal I have an unbelievable amount of CD quality music at my fingertips, music that I would never have been exposed to. I run Tidal through Roon and it's an awesome combination.
A few weeks ago Tidal started offering the Masters of some albums (catalog growing as labels sign-up). Some of them are at a very high bit rate, almost impossible to stream without issues up until MQA became available. It's a game changer for audiophiles that like to stream. Personally, I think streaming is the future for audiophiles. They'll catch on as more of them are exposed to the fact that they do not lose one iota of sound quality. Gone are the days of crappy compressed streams for those that are willing to pay a few extra dollars. The regular FLAC streams sound equivalent to any physical CD I've had (as long as it's the same version).
As for the Masters, they're stunning (compared to every other version I've heard of the same recording). MQA makes the file small enough to stream and then an MQA capable DAC "unfolds" it so that you get the full bit rate. No need to have it saved on you hard drive if you don't want to.
The sound quality is really stunning for those who have a system that can resolve the difference. If not, then I guess your right - upgrade speakers or headphone first.