[windwolf447]

AirBow SC-21 is the mod version of Stax SR-507 and it's my favorite headphone. Here is my video review and the comparison to the SR-507 of it.
 
(I keep saying "electric-static" instead of "electrostatic" in the video, so wrong...Sorry.)
 

 
Hope I can see more electrostatic headphone lovers in here!

 

[nogi replicant]

Thanks for the review mate. Would you say that the AirBow SC-21 is just slightly better than the sr-507 or significantly better?

 

[windwolf447]

Maybe not to the extent of "significantly better" (not like HD800 > HD650 level), but the improvement level still sounds big to me (something like HD700 > HD650 level)

 

[nogi replicant]

Thanks.