For sale are my barely used pair of iSine 20s (B-stock). I bought these in the 2018 Thanksgiving flash sale and have probably put something like 20-30 hours on these.
As far as I can tell, the only thing that made this pair 'B-stock' is that they were missing one set of earhooks. As such, I bought the ear kit from Audeze and am including that in the sale price. This also has the lightning cipher cable (which makes a difference imo).