Well currently I'm running the T1 through UD100 instead of the internal DAC with a standard RCA - Mini jack. I much prefer the UD100, one of the reasons is that its louder than the internal DAC and I cannot detect any loss of resolution from my 24 bit songs.
When you get your cable, can you try and repeat my impressions? I don't have much of a critical/golden ear.
Will definitely give it a go. I didn't check the gain on mine yet, but with the Grado SR225i, volume is no problem so I will leave it as is. I may not be using the UD100 though. I will be using the HiFiMeDiy dac, which is capable of 24/96 rez output (but uses the same chip as the UD100). The HiFiMeDiy not arrived yet though. It's a different form factor, is in a small case/box with a USB cable and 3.5 input. Not as neat as the UD100, which I will sell when the new dac arrives.