for the review...the bigger difference between im50 & 70 are bass right?
70 has stronger bass than 50....
any other difference between the sound signature between this 2 earphone?
No the other way around.
Even if the IM50 is more coloured than IM70, and IM70 sounds more balanced, but from my experience with my recordings, IM50 sounds more engaging, more musical. While IM70 technically sounds better.