I'm aware of the following high-impedance headphones:
Sennheiser
HD800 (300 Ohms)
HD700 (150 Ohms)
HD650 (300 Ohms)
HD600 (300 Ohms)
HD580 (300 Ohms)
Beyerdynamic
T1 (600 Ohms)
T70 (250 Ohms)
DT990 (600 Ohms)
DT990 (250 Ohms)
DT880 (600 Ohms)
DT880 (250 Ohms)
DT770 (600 Ohms)
DT770 (250 Ohms)
AKG
K240 Sextett (600 Ohms)
Is anyone aware of any others? I've heard just about all of the above except for the T70s and the Sextetts. I'm trying to figure out what other cans might be a good match to the Crack.
Best regards,
Adam