Hello little T1 thread. I haven't looked too hard for you but I figured I would find you when the time was right, and ... look at that - that time is now.
I took delivery of my T1s at the end of December and have been putting a good 1-2 hours a day on them so I'm getting used to them enough to comment.
Base system:
I use the T1s with my portable rig that consists of a current gen IPod classic 160 => CypherLabs Algorhythm => GoVibe PortaTube + => T1s. Sources files are mixed: mostly FLACs converted to AAC with some mp3s and some 24/96 files as well.
Picking the T1s:
I went to the local Jaben outlet to up my inventory of IEMs. I listened to the my base system above and tried JH13 and 16 universals, the T1 (molded for someone in the shop) and a pair of Final Audio Design Piano Forte X-CCs. Though the Final's were one of the most unique listening experiences in my some 20-odd years of hi fi, I just refused to pull the trigger on a S$2800 pair of IEMs that felt like they could barely stay in my ears. The T1s were head and shoulders above either of the JHs for the 30-45 minutes I spent with each pair. Not perfect but since the customs were molded for someone else's ears, I wasn't gonna get perfect in that environment. And still they were far superior in almost all areas to the JHs, especially the tight bass control.
Fit:
Well, if you have a pair of these, you know that they are different than just about any other custom. The fit was snug and a bit awkward at first, as I found the occasional trapped air pocket in my ear canal if I didn't screw the T1s in with due care.
Initial impressions:
Once I got over the initial joy of 6 weeks of waiting rewarded with my new toy, I must admit I was a bit disappointed with the T1s. Sure, there was a lot to like about them. But I found the rolled off highs a bit off-putting. I like the air and top end in my music; it's just one of the things I am drawn to right away and the T1s were not what I was hoping for there. At least at first. Looking back, I think that the T1s were so good in so many areas that I was being a bit unfair. Perhaps.
I used the T1s on my commute to the office, which can run to about 45 minutes each way. In the office, I am lucky enough to be able to cycle through other headphone including my trusty Westones, some Grado GS-1000s and my now-dying UEs all played from my PC through a NuForce Icon HDP and a Yamamoto SC HA02. So I was able to get some variety listening throughout the day and lo, the T1s started to sound pretty good in comparison.
What's to love:
If you're a bass-head, I can't think of an IEM that delivers better controlled and musical bass than the T1s. Oodles of it. Never enough to overpower the mix, but more than enough for me to say "I've never quite heard that song sound like that" in a good way. Especially for the size of the package that is delivering that much control so effortlessly, it's truly impressive.
As a direct result of that ACS fit, the sense of isolation and quiet is really unique in the IEMs I've tried. Acrylic castings just can't quite compare to this, though not for lack of trying. Other than my own breathing, it takes a lot for me to hear the outside world while wearing the T1s.
Then there's the mix itself. The aforementioned bass, mids and the highs were all firmly but equally blended. Each time I though I thought the mids were being held back, after further comparison, I realized that I was hearing another headphone coloring the sound while the T1s were more neutral across the whole spectrum and not emphasizing any one part, with the exception of the still noticeable lack to top end air. Neutral and balanced presentation to an extreme I would not really expect in such a small package.
With that mix and isolation comes a great sense of detail retrieval. The 24/96 Beatles re-relases on the T1s literally made me stop several times in the street and shake my head at what I was hearing. An awkward, sudden fade-in in the mix, a mi**** pedal note on Blackbird, details in John's conversation in Hey Bulldog. My rewind button got a lot of use as I would say "did I really just hear that?"
I suppose it's more acclimatization rather than break-in (or maybe it's a little from column A and a little from column B), but after a few weeks, I began to really warm to the T1's top-end presentation, especially on some of the more dynamic tracks I have (Russian Circles, Cloudkicker, and other post-rock bands) where the highs almost assault my ears over extended periods, even at moderate loudness. The balance and even-handed presentation was really a plus here.
Post regrets and an Epiphany. Kinda.:
I couldn't help but feel I was missing something though. So about a week ago, I went back to Jaben and asked for the JHs again. Out came the 13 and 16 universals again.
And again, it was no contest, but maybe even moreso than the initial audition months prior. The T1s kicked both of the uni-fits up one side and down the other. And I came to a kind of peace with the T1s. IEMs are going to be flawed beasties, especially when used as portables. And when I find myself grasping for flaws in the T1s by saying, I'm missing the top end air I get with my HiFiMan HE-500s and Liquid Fire, or the full range dynamics of my 2 channel system with Maggie 3.7s, then I've really gotta take a step back and say, "well, what were you expecting? It's an IEM in a portable rig". And even then, it does things that the other two (admittedly exceptional) systems cannot do. That's some pretty rarified air itself there.
So yeah. I got it pretty lucky, and I think I'll be keeping these T1s for a while.