I am all set in my car... Focal Be 3-way with Zapco Amps. Once I heard a bi-polar amp, I won't be able to use MOSFET ever again. I am slowly fading on needing a high end setup in my car... I just mostly listen to sports radio anymore and it is way easier in a home without strange surfaces, glass and road noise everywhere.
There is no way for digital media to store a true wave... they cannot go to infinity and represent a true curve like analog can, but they are pretty good if you let the file size get big and take more points. We do a lot with sound at work and it is amazing to see the dynamics that even a 24 bit can round or miss points on... but you probably need a 2K receiver and a really nice set of speakers to probably even tell. Some people cannot even tell on my Mac6700 and Grand Utopias, but most people can. There are some folks working on storing waves as formulas instead of byte arrays (which they all do now, no matter what they tell you), that might be really awesome - they would require a wave generating chip instead of a FPU, but the hardware should be easy if the algorithm can be figured out.
I blame really bad radios in cars, mobile devices and really bad headphones of the past for the somewhat horrible sounding music of the last 2 decades... a pop album that my daughter bought does not have a note under 50 or over 7500 hz... and the dynamics are as flat as Eastern Colorado. I am so glad that the good artists still get it and at least make a high quality download.