The GT-2B vacuum tube condenser microphone using A selected low noise tube and other high-performance electronic component. The microphone adopts 32mm large gold dual diaphragm capsule which making the sound warm and sweet. It also features high sensitivity, low noise, low distortion and wide frequency responds and so on. Due to these features the sound becomes mild and plump. The GT-2B offers nine different selectable polar patterns easily available from the selector switch on the front panel popular patterns (Omni, Cardioid and Eight Figure pattern, three gradient stages between each pattern).