I have s2100. Excellent player, and even greater value as I bought it refurbished. Very organic sound, with adequate details/texture, deep sound stage, and solid base. Balanced output is preferred, notable degradation in sound quality if you run unbalanced. The player is designed for a balanced system. In a fully balanced system, vocal is organic and natural. SACD sounds great, wider/deeper/layered, and finer treble. S2100 is on par with or better than any player I have heard under US$5000, albeit each brand has its sound signature.