Gee Simpson
500+ Head-Fier
IMO the E40 is a big step above IM70. Tighter and punchier bass, more forward and clearer mids, and a more present treble. No contest. The E40 is really close to the level of CKR9LTD/10 to me, and it's amazing how they achieved that for half the price of the CKR's.
Wow! It looks like these will be my IM70 upgrade then.