Countryman Isomax 4RF Podium Microphone

The Isomax 4RF is the podium microphone for installations where the mic gets left alone for years: a fixed pattern, a 270 Ohm balanced transformerless output that drives any load, and an RF-resistant design for lecterns surrounded by phones and wireless packs. Choose cardioid for a wider front angle that covers two or three people at a lectern, or hypercardioid when a single talker needs the maximum rejection of everything else in the room.

Ordering is by length and by stiffness, measured from the bottom of the base to the front of the capsule: 12 in for low-profile installs, 18 in for most rooms, and 24 in when the mounting point sits back from the talker. The gooseneck is specified as rigid, top flexible, bottom flexible, or both ends flexible. It runs on 9 V to 50 V at 10 mA.