I dont have the T1-i CD but i can comment on the CD-IV. I recently purchased one to replace my AH!!! Njoe 4000 cdp. I noticed a bigger soundstage and a little more detail PLUS the unit is built like a tank. Also experimentation with different tubes gives different sound also. Im currently running Siemans 7308 tubes in it now. I would highly recommend Metronome if your able to get it.
