Greetings! The Hap3 is burning-in as I'm typing. Tubes? Since I don't have any 6922's on hand I just swapped out the 12au7 for a vintage GE and Realistic (Radio Shack) tube. After making comparissons I've decided to just keep the EI in. Acidtripwow, have you tried other cables besides the...

Greetings All! I'm a first timer so this is my first post. But of course, before posting I did try a search but with very little results. So additional comments needed please. I will be driving HD-600 Senns. I found out these will work well with the HAP3. So is there anyone else...