I just received mine back last night, the cable had shredded a bit and the left channel was cutting out. I have to say I did it via Monika Shumacher (
www.protection4hearing.co.uk) who I'd bought the headphones through, and the service was superb again. I texted her to ask her for a contact name at ACS so I could start the return-under-warrantee process myself, and she insisted on coming around to my flat after work to pick them up, the same day. I'd recommend her to anyone in the London area.
When Monika brought them back after sorting everything, I have working headphones again as well as new replacement green wax / moisture filters installed and a portable Dri-Aid pouch that I am supposed to use as often as possible. This is as 3nenbgumi stated above. I thought I was taking good care of the T1 Live!s but obviously not, there was also sweat damage in the monitor. When I got the T1 Live!s there were no replacement filters, this is quite a change.
So now I have an unsolicited "upgrade / refresh" (the headphones smell nice and new too) and it's back to the Etymotic-style filter replacements every once in a while. If it makes the headphones a bit more resilient then I'm all for it. I'm trying to determine if I can notice a difference in the sound with the filters in. At the moment I am really tired and stressed at work which will affect my enjoyment of music, so I will reserve final judgement, and please take this with a pinch of salt, but my initial reaction is to say that the sound is a bit tighter and more distant, I don't get wrapped up as much in the warmth of it all, but it's a bit less messy and more analytical than I remember and harsher on a bad source. Ave_Joe - I'm going to stick my neck out and say that the muddy mid range when there's a lot going on, is a bit better now. I'm being urged to actively listen more than I remember. In fact I just stopped typing for a few minutes to concentrate on the music which never really happened before... it's less relaxed. On the other side, voices seem a bit less clear now, it's not quite like they're in the same room, singing to me. Could be the bad source being more noticable again though.
This is of course likely rubbish, and I am probably making it up and will have to delete this post in a few days(!), but yeah I'm liking it. All this could be due to a general refresh from the service of course, or because I cleaned my ears slightly differently, shrug.