I'm in the same boat: my Tributes broke in the same exact spot after 14-15 months of use each time. For me, the wire wore down right at the point where the L-connector "shield" ends, i.e. where the blue cable starts, which leads to the left earbud cutting in and out and crackling. The first ones, I bought here and the guy never responded to my request for documentation of purchase, so I couldn't get a warranty replacement. I coughed up the major chunk of dough to buy them on Amazon and then they broke 15 months later.
I got the Miles Davis Trumpets via FedEx today, from the warranty replacement. RMA process is painless, super easy. The only bad thing is the time it takes to get it back. IIRC it took 3-5 days to have my RMA sent out after they already received it. I thought it'd be faster. From there, they ship from Las Vegas. Hopefully, that gives any poor soul who's going for an RMA an idea of how long they'll be without their beloved IEMs
Anyway, I haven't burned them in yet, I've only logged about three to four hours with them. I'm not an expert audiophile, but I feel like there's less oomph to the sound. I listen to oldies (namely 50's, especially doo-wop), which I feel benefits from the warmth, especially to cover up the less pristine tracks that come from vinyls and such. The Tributes seemed to do well with the music I listen to. The Trumpets feel a little more clear, with a good degree of separation: on the first track of the CD it comes with (Sketches of Spain), you can really hear a separation between the highs and the lows. I was surprised to hear the detail in the lows.
I miss the heft of the Tributes. The flat cable of the Trumpets, the snazzy ControlTalk module, and the lighter earphones themselves all come together to provide quite a different feel from the Tributes.
Oh, one thing to note: AFAIK, the SuperTips from the Tributes don't work with the Trumpets. I couldn't squeeze the old tips over the new earphones. The old ones' aperture is smaller than the new ones.
Anyway, I look forward to enjoying these. I just hope they don't crap out on me in 15 months!