Had the T800 for a few weeks, but I ended up returning it. It randomly had a really annoying treble that seemed source-independent. The rep told me I could install filters to fix it, but I'm not too keen to experiment with filters, much less since they came with none. I'd rather stick with the built-in signature for the time being. They had incredible sound, especially for someone who likes bass. Sub and mids were forward, textured, and had a tad bit of thump. It was able to extract details in the lower range I had missed from one of my favorite songs. Mid bass fit well, but I got the feeling of mids being a bit too recessed. Instruments came clear enough, but something was... lacking. Vocals were hit and miss, if memory serves. The treble was not overpowering in the slightest, quite detailed, and tame, and yet it "came loose" not long into the burn-in.
They fit well, but they protruded far too much for my taste. The case was awesome, but I would have preferred something smaller. It was too big for one pair, but at the same time too small for two pairs, and much less including accessories. I'd recommend it, if someone doesn't mind buying the extra filters and testing them out.