Dear Carlos269,
Regarding your post of 7-14-09 to Mitch4t: the impact, if not primacy, of the source material is paramount! What occurs - or for that matter, doesn't occur - between the recording of the first note and its reproduction in the audio system is simply astonishing!
"...the power of the mastering studios equipments' abilities to manipulate the spatial, spectral and tonal presentation of the recordings..." I absolutely concur.
Respectfully,
Sam