Wait a minute. First, to get sound equal (or at least as equal as possible) as the one that was recorded, first you need topnotch equipment. Preferently, you need the very same equipment used for the recording. That's the only way to maintain sound close to what it is expected to sound. Be real: am mp3 file at 128 kb/s doesn't come close to what the engineer wants us to listen. Plug an mp3 player at a third-octave analyser and compare the spectrums to the ones from a top-of-the-list cd player, reproducing the same song. There's no match. That's why I was thinking at the possibilities of enhancing somehow my mp3s. As for real audiophile sound, yes I consider myself a perfectionist and that's why I stick to vinyl. Period. Ok, Cds are nice too. But please don't come with that stuff about preserving sound as indistinguishable from the original. In such a compressed format as mp3, that's not possible.
Please pardon me if sometimes my english isn't clear; it's far from being my native language :-)