Didn't you like the sound when you got your second pair?
boomy sound is normal... it's the JH16 bro.... I used to nag about it when i got my Jh16's.
Ironically I learned to appreciated after 3 months. Sound also improved noticeably after ~ 200 hours of playback.
I used to praise the ShureSE535 but when I went back and listened to them after few months with JH16's I was like meh... get the hell out of my face.