As much as I can read, MQA is NOT an improvement but rather a marketing thing.
Correct. MQA is an encoding process created by Meridian audio as an attempt to make pseudo high-res audio into a streamable/portable file size. If true high-res audio is your goal, FLAC is your friend.
I subscribed to Tidal for the 30 day trial. Many of the albums they offer aren't even "MQA"; rather just CD quality rips. (In order to properly produce MQA files, Tidal needs access to the original studio masters. Since Tidal is a division of Project Panther Bidco, a subsidiary of Roc Nation, owned by Shawn Carter aka Jay-Z, not every label is willing to provide access to their studio masters to competing labels)
I honestly found Apple Music to be the best overall selection with "useable" sound space. Plus a good portion of their library is "Mastered for iTunes". (I work in the industry for an Apple Preferred Plus Content Aggregator and Apple has
incredibly strict QA of any incoming content for distribution. Mastered for iTunes assets are indeed direct 16bit 256kbps/44.1kHz AAC encodings from studio master copies)
For what it's worth, I did conduct an unscientific experiment in this realm. I have an iPod Touch loaded with log file certified 24bit 96kHz .ALAC rips and my iPhone with Apple Music. (
Example track) When comparing the same tracks under both formats on my 2016 Expy Sony system (using USB connectivity into CarPlay), the difference is negligible at most. To notice a difference, I'd have to use my studio cans with an external USB DAC. Fun fact, the maximum rate any iOS device will push out of a wired connection is 24bit @ 48kHz.
I know some people really like Tidal and by no means is it a bad service. But at the end of the day, that extra sound space mentioned above isn't going to produce more sound in one spectrum for you in the truck.
However, if bass is what you're after and do not want to go down the aftermarket path, look into sound deadening. I've done all four doors on my Expy, both outer and inner walls with Noico 80mm...it made a HUGE difference. Bonus is a much quieter ride.