GS1000i one of the best grado ever did. I have 3 pair. love them. For me they are in the same league as Hp1000 and rs1 (pink driver). But twice less in price. I think anyone who love grado have to have or at least try them. I also keep original gs1000.. it so nice see sound evolution from gs1000 to gs1000i. But even GS1000 has this magic. You hear it from the first seconds... that said, GS1000e not my sound. Really tryed twice.. get one not liked.. sold. After a while decide give a second try... the same. Good we all have different taste and preference.