Okay, so received my Senns this morning. Haven't used them for long, but can give a comparative opinion on the soundstage etc compared to the Jabra 65Ts. TL;DR: They rock.
So much more bass and a much more open and clear soundstage. Tighter treble, less muddy than the Jabras. The sound profile is very much like my old IE80s - which is a good thing.
Few test tracks to compare:
- 'Sister', Lenny Kravitz - that first bass note just kicks. On the Jabra it was okay, but with the Senns it's like having an actual bass guitar in your head.
- 'Ordinary Day', Bent - cracking bass, and the soundstage opens up widely, compared to the Jabras. Feels like listening in a big room, rather than in your head.
- 'Revolutions', Jarre - crisp clear percussion, really tight mid-ranges. Just sounds a whole load clearer than the Jabras, and sooo much more detail.
- 'World in my Eyes', Depeche Mode - Intro is really tight and hits you much harder, real oomph to it.
- 'Coward', Interstellar OST - They really showed up the differences here. The whole soundstage opened up and felt voluminous. The underlying low notes of the organ backdrop felt huge in my head, really awesome.
- 'Rather Be (Magician Remix)', Clean Bandit - again, massively thumping bass, but the soundstage is so wide and open.
- 'Take it Back', Floyd - everything just sounds crisper and cleaner, and there's a deep tonal bass that just hits you hard.
The thing I really noticed is that there's just a whole new depth of tone that's missing on the Jabras. The other thing is that the volume is so loud. With the Jabras, I had to run them at literally 100% volume to get any sort of immersion, and it really wasn't that loud at all. With the Senns, I'd say they're louder at 50% than the 65Ts at 100%. Whether that means that the battery life will be improved because the volume is lower, remains to be seen.
So from a SQ perspective, these have nailed it. Really chuffed.
Just have to see how the battery life and the other features work out. In terms of other stuff - pairing was instant - put them in the case, took them out again and they popped up on my phone (S7Edge) instantly. No problems. Fit seems excellent, with the default tips - feel solid as a rock. Don't think I'll have any need for replacement tips (or even to change the tips to the larger ones) but we'll see.