I agree with you if you are using stock music player, z3 is better but low output but if you use other music apps like neutron then you will notice that note 4 is better than z3.

i have tried galaxy note 4 with exynos chipset and neutron music player with my mdr-1rbt and bose soundtrue, the SQ is very good.  I have also tried G3 but note 4 is slightly better. I tried xperia tx, the sound is very clean but low volume. xperia z3 and z2 are disappointing. iphone 6 for me is...