The MK 41 is a highly directional capsule.
Reverberant sound arriving off axis is picked up with even greater attenuation than with a cardioid.
Its directivity is highly independent of frequency, so that even sounds arriving off-axis and reverberant sound are registered without coloration. Consequently, even distant placement of the microphone produces a very natural sound pickup. Interference-tube microphones are notoriously sensitive to their position in a room, where the shifting patterns of reflections cause corresponding shifts in sound color. Thus the supercardioid offers a very useful and space-saving alternative to a shotgun microphone, all the more surprising since the MK 41's small size belies its effectiveness. Compared to the cardioid capsule, the MK 41 has slightly more roll-off at the low end, due to the gradient effect.