Multi-pattern Condenser Tube Microphone Transparent, airy, rich and silky. Travel back in time with the extra large diaphragm, RF pentode, iron core, and 120 volts of drive. CAD brings back the look, sound and feel of early condensers. Use all three polar patterns to define space and tone. Elastic shock mount, durable metal travel case, dedicated cable, and 120V power supply are included. 115/230 VAC power required.