Pickup Pattern: Cardioid Response: 50Hz - 16.5kHz Sensitivity: -72db Impedance: 600 Ohms Weight: 235g. The NX-7S is designed for optimal warmth and clarity. The outstanding pick-up pattern and sound quality make NX-7 ideal for vocal- drums- guitar amplifiers and other instruments. The dynamic shock mount keeps noise to a remarkably low level and the flat-top grille means the sound source is as close as possible to the cartridge. This version includes an on/off switch on the Microphone body.