I have been told that the SB makes and additive effect with the Aubisque filter from ultrafi. The reveiewer said they were complementary.
Tell me, how is the SB with the iFi iUSB Power device? Have you gotten any feedback?
It seems all these devices do slightly different things and so may be very complementary.
As for Aubisque+SB, since Aubisque filters the common mode noise as well, maybe there's some benefit from double filtering?