For all recorders providing XL-R microphone in jacks and phantom power the
A3-XLR version is recommended. Technical data are the same than A3 adapter.
To connect unbalanced microphones on recorders providing balanced mic-in
cause often noise-problems. The reason could be that the manufacturer of
portable recorders often don´t care about the standard of phantom power.
The A3-XLR adapter is working independent from phantom power