I will answer the last question first, and let others who know music servers better answer some of the other stuff. W respect to speakers, it makes absolutely no difference what your source is; analog, digital, or or vegetable.
Oh, and one other thing I can answer; you can get good sound from internet streaming services, but some are better than others, and w a good music server, amplifier and speakers, you will be able to hear the differences between higher bit rates and lower bit rates.
Oh, and one other thing I can answer; you can get good sound from internet streaming services, but some are better than others, and w a good music server, amplifier and speakers, you will be able to hear the differences between higher bit rates and lower bit rates.