Microphone Suitable for Vocals and Speech. Cardioid Polar Pattern. 3 Pin XLR Connection. Metal Body with Steel GrillePickup Pattern: Cardioid Response: 50Hz-16.5kHz Sensitivity: -72db Impedance: 600 Ohms Weight: 245g. NX-8 provides a wide frequency response and dynamic range for a cleaner and smoother vocal sound. The internal shock mount keeps handling noise to an extremely low level. Reinforced cartridge and hardened grille make NX-8 one of the most rugged Mics in the professional microphone industry.. vocal mic-vocal microphone