The new Electro-Voice N/D868 was designed for one purpose: to be the very best bass drum microphone. It provides a unique, high-performance solution to difficult bass-drum-miking problems. The ND868 is a true large-diaphragm microphone for extended low-frequency response. Its superb pattern control minimizes off-axis coloration and feedback from large, loud floor monitors. Its wide-range N /DYM@ transducer can handle outrageous SPLs without difficulty and has been sensitivity-adjusted to prevent high-level signals from overloading your mic preamp. The optimal placement for theND868 is on a pillow inside the drum about 3-inches from the head. This placement accentuates the "pillow effect"-a 3 to 4-dB drop in the upper bass range-and lets the N /D868's specially tailored response work its magic. The ND868 has a peak in the upper midrange to capture the attack of the beater on the head and a bump Like all Electro-Voice microphones, the ND868 approaches indestructibility. Its special Memraflex™ grille screen resists bumps, dents and bends.Its heavy-duty steel case will survive the most grueling tours with ease. The ND868's robust stand clamp will hold it securely in place to make it easy to get the sound you desire. Each ND868 is carefully built to exacting standards in our ISO-certified Sevierville, Tennessee factory. Every microphone is tested and a response graph included with each unit to show it meets all of its engineering criteria. Frequency Response: 20 -10,000 Hz Polar Pattern): Cardioid variant Open Circuit Voltage 1 kHz: 1 mV /pascal Power Sensitivity 1 kHz, (0 dB = 1 mW/pascal): -51.7 dB Dynamic Range: 140.3 dB Polarity: Positive pressure on diaphragm causes positive voltage on pin 2 ref. pin 3 Impedance: 150 ohms, balanced (low-Z) Dimensions: Height: 132.6 mm (5.22 in.) Diameter: 60 mm (2.36 in.) Net Weight: 295 g (10.4 oz) Shipping Weight: 750 g (26.5 oz) WE ARE MUSICWORKS HOBSON STREET AUCKLAND. ELECTRO- VOICE IMPORTERS FOR NZ. TRUSTED BY NZ'S MUSICIANS FOR OVER 85 YEARS.