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anything cayan c5 sized with more power?
Plussound Cloud Nine claims 1.28w at 32ohm vs. 800mw for the C5. It's less wide and long than the C5, but thicker.
iFi XCAN doesn't have official specs yet, but also might qualify.
for home use is there a sound card that wont break the bank that will power these? im 99% sure as good as the c5 is that these headphones will sound better with more currrent then the c5 being portable can do