The AKG C 414 B/ULS is a condenser microphone designed around a dual back-to-back gold sputtered diaphragm, offering multiple pickup patterns. Pickup patterns are easily switchable among omnidirectional, cardioid, hypercardioid, and figure-eight. Additional flexibility allows a bass cut of 12 dB/octave below 150 or 75 Hz and a PAD of either 10 or 20 dB.