Usually 3-5 Days. "Simply different," is how this new tube microphone from Audio-Technica is described. One major difference - the tube is in the mic and operates off standard 48V phantom power! That's right, no phantom power supply to plug in. No tube box to plug in to. No special cables required. Plus, this the the largest diaphragm Audio-Technica has ever put in a microphone. You get the warm sound of a vintage tube mic combined with the exceptional quality and consistency. It's that simple.