How much better is Esoteric K-03 vs K-05?

Struggling to make decision between these two units and desparately needing opinions on how much better the K-03 is and whether it is worth the additional cost. Please, anyone who has heard them, please provide opinions on the differences. Need answers quick...Thanks
K-03 is wonderful. Musical as all get out. Forget the CD bashing the major mags are doing to drive their followers away fro CD's. This unit makes your cd collection sound better than you ever thought they could.