Symetrix 601 - Page 124

D-10
Rev 2.2, 10/31/94
Variable-D Microphone A variable-D microphone is a directional microphone having a multiplicity of
entrances for off-axis sounds. Variable-D microphones exhibit proximity effect, although not to the
degree that single-D microphones do. The term Variable-D is a trademark of Electro-Voice.