I'm sitting here in awe. After over 100 IEM's (earphones), a pair of UE 7 pro customs, and countless big money disappointments, I'm typing this up and just enveloped by beauty in music. These Sony XBA-30's are so smooth and lush. No better mids have i ever heard. My old UE TF 10's can't compare. Sure the TF 10's produced deeper bass response, but the bass here (produced by a bass woofer driver) is not only sufficient, but much more natural and resolving. With my E11 amp, just the slightest boost, and I get that bass bump that so many bassheads love and die by. So it wasn't that hard to get to TF 10 level bass with the flick of a switch. The mids are the star here. Vocals and guitars just come alive with energy, rarely achieved with armature driver technology. The power and HEAVY of Exodus - Shroud Of Ur!ne just shines! The guitars are so forward, crunchy, and clear. The vocals are poweful, immediate, and forceful. This also presents a lushfulness and airyness when playing Pink Floyd - Comfortably Numb. The highs are present and accounted for. Not sparkly or sibilant, but controlled, articulate and clear. I think I like the highs for this very reason. They are not forward and thus taking away from the recording, but they help envelope the recording, and bring this above average soundstage and imaging to life. This is the weakness of the UE TF 10 (the fellow triple BA monster). The highs are too sparky and sssss and shhhh sounds can cause sibilance in vocals. Not with the XBA-30's. Not a hint of sibilance in any recording I heard. Simply put, these babies handled metal, classic rock, classical, jazz, and r & b effortlessly, and with the right presentation for each. i have never found that possible with any other earphone. UE TF 10 killers these are. Well done, Sony.
The fit is perfect. Despite looking rather bulbous and large, the actual housing is extremely lightweight, and the fit with the stock tips (i think 14 different pair sizes) is fine. Apply Comply olive tips to these, and they sit in Ear Heaven. I couldn't be happier, since a genetic mishaping of my inner ear usually causes fit problems with me.
The chord has a nice chin cinch, so very comfortable and no microphonics issues. I'm taking these to the gym soon, so I'll put them to the test in a work out situation. The carry case is hard, and has a magnet lock. Very nice and elegant looking.
To wrap things up, I think at the end of the day, these are the very best earphone purchase I've ever made. Time will tell if they hold up and keep this elevated standing, but for this da and this moment, I couldn't be happier with these UE TF 10 killers.