I listen to classical music, jazz, pop, old jazz bands, great historical recordings from labels DECCA, CHANDOS, TELARC, NAXOS, PHILIPS, CHESKY. I regularely go to concert (classical). My "ideal" system would be portable and reproduce the sensations I have in a concert room. I will first describe my own system and the "why" of each element. First a MacBook Pro with more than 1.5TB of high definition music (24bits, mostly with 96KHz but also 44, 48 88, 192..). The music comes from Qobuz, a french company with a wondeful service. With a $200 annual...