Application e.g. for FYNE Audio loudspeakers of the series with connection for ground return: F500SP..., F700... and F1...
The following amplifiers have a ground return connection: resolution audio cantata C50, M100 or opus 21 s30 and s80
(For DNM, connect to 0V/ground terminal (star point) of the preamplifier.)
Connection for all other amplifiers with adapter: MAC