I don't have enough experience with those to answer I'm afraid, I guess it'd depend on the number of electrodes and their placement. The big problem with those

I don't have enough experience with those to answer I'm afraid, I guess it'd depend on the number of electrodes and their placement. The big problem with those recordings is the skull which acts as a low-pass filter over the signal that goes into your electrodes, more so than the equipment (within reason). So it could go both ways.