So I built my Crack - vanilla apart from some expensive wire (Trident missile system) and silver solder. I was very happy that all the resistance measurements and voltage measurements were within 5-9%, and so I powered it up with some ear-buds I didn't care for. Five minutes later I plugged my T1's in. And they sound fantastic! Thanks guys - $279 is a bargain, and I'll update after I:
(a) Speedball
(b) Add a choke
(c) replace the caps
Right now, just having fun listening to music.
Tarquin FB