Wow two people with fit issues with the DJE1500! Did you use the default tips only Eric? I personally had to use different tips.
This IEM sounds much heavier out of the box, the bass does settle down with use while the rest of the signature blossoms. Were you able to give the IEM any burn in time? With UE tips I find the signature to be bassy but with very good mids and treble and as mentioned a massive sound stage.
Between you and Danny how do you compare this to the Sony XBA-H3? Personally I found that IEM to be even bassier with much less dynamics and a more neutral to recessed midrange.
I didn't swap tips other than what was in the package, dweaver. But to be honest, along with the fit issues the initial sound out of the box (when I got the earphones to sit right for a minute) just left me unexcited. I was like 'meh.' Bass was bloated and boomy, and I had no desire to see how it would blossom with burn-in. I think it's because I've heard so many IEMs recently around that price (costing a little bit more or less like the TE-05, Doppios, M-200, MA 750, Altone 200, IM 70, and now this Havi Pro 1) that wowed me right out of the box. It was kind of like "why even bother to see how it will develop?"
I think agree with you that the H3 has more bass than the 1500, but the Sony bass was cleaner and more visceral to my ears right out of the box. The 1500's bass sounds bloated and kind of muddy to me. Eventually the H3's bass settled down quite a bit and blends in nicely with the mids and highs (I'm not calling it neutral now, but more balanced sounding, especially with the JVC Spiral Dot tips). You stated you hear the 1500 somewhere between the 7550 and EX1000. Well, I think the H3 is way more impressive to my ears than those two Sonys. Just a matter of preference I guess.
If I may make a suggestion, and if you haven't heard them already, may I suggest you try to get your hands on a pair of Havi Pro I. I know you have written in the past how you like a neutral sound. I generally like my earphones a little (or sometimes quite a bit) north of neutral, but some neutral earphones have been stunning to my ears (Doppios come to mine). This Havi is heading in that direction right out of the box. It has such wonderful neutral sound of clarity for dual dynamic drivers (they are mico-dynamic dual drivers if that makes any difference). The Havi impressed me out of the box. the 1500 didn't. Sorry my friend.