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Wattage does not tell you much in car stereo and today a $20 head unit has some features you couldn't find in a $1,000 head unit five years ago.

I think its pretty safe to assume that any stereo with a name like Sony, Harmon Kardon or Bose attached to it is going to sound pretty decent.

Bose is famous for making cheap speakers sound good with a handful of opamps and that's what any good OEM car stereo does, active equalization and phase change to make a good sound field near the passengers heads.

About the only thing you can tell from 100 watts is that its not going to have really loud, deep bass, you just need more power to move enough air for that.

 

[wash]

I dont like the system at all. But nothing new speakers can't fix. Highs are good, mids are not that clear and bass is there but its like the speakers can't produce it unless there's a lot of it. I have played some songs with a lot of bass and they sound good but if there's little they won't produce them at all. It might not make sense what am trying to say but when I had a sound setup on my previous car you could notice the different freqs of bass. On the FiST you can't. But again nothing new speakers can't fix.

Good luck with that, you'll need it.

Speakers can't be organized as good, better, best, they are just all different. Using an expensive speaker with the wrong equalization can sound a lot worse than a cheap speaker with the correct equalization.