Hey guys, just got the some t90's in over the weekend. Love them, just what I was expecting coming from some 990 pros. I had some mini xlr's lying around from a balanced setup I was going to do on my he-400's but the room in those was very very tight, so I stayed stock setup leaving me the mini xlr's for another project. I'll go balanced later but just wanted to get this done last night so stayed single input. Nothing fancy but turned out good. I haven't looked in this thread and I'm sure guys have done this before but here's mine with a few pics. For anyone thinking about doing something similar, make sure you use a file and go toward the silver on the cup to clear the lip that the driver sits on in the cup. I still had to take my dremel and clearance the nut on the back side of the jack. One could also use jb weld or glue to the same effect. I just had none on hand so I used the nut. A tiny gap from the stock entry hole can be seen around the jack since you have to go away from the stock entry hole to make this work. A slightly larger flanged diameter jack would've been perfect. These headphones sound great with the crack plus speedball combo. They sound good with other amps of mine (Jonokuchi, Project ember) but I find they sound best with the crack. Thought I'd pop by and say hi to fellow t90 owners.