Electro Voice ND868 Bass Drum Microphone

The Electro-Voice N/D868 is a cardioid dynamic microphone designed for use with bass drums. Every aspect of its design is optimized for miking a bass drum in both live and recording applications. The frequency response is tailored to match the optimal post-processing usually applied to "flat" microphones when used in this application. This means that the N/D868 is a plug-in-and-hang-on product. You can use this microphone "as is" —no post processing needed. The microphone has a lower sensitivity than other products in the N/DYM ® line to compensate for the high sound pressure levels (SPL's) present in bass drums, preventing distortion at the input of the mixer. A highly effective hum-bucking coil is also used to cancel hum interference from lighting and other power sources.

FEATURES

• Designed specifically for bass drums
• Extended low-frequency response
• Optimized sensitivity for high sound pressure levels (SPL's)
• Rugged, steel construction

OPERATION
The N/D868 offers an adaptation of the traditional heart-shaped cardioid polar response for maximum rejection at the rear of the microphone when used outside the drum. Optimum performance is realized when the microphone is placed inside the drum approximately three inches from and pointed at the drum head. A common method for mounting a bass drum microphone is to place a pillow inside the drum with the microphone resting on the pillow. The pillow attenuates the low-mid frequencies of the drum, a desirable characteristic further enhanced by the N/D868's tailored response. Attack and "chest thump" can be varied by adjusting the microphone's distance from the front head and its position relative to the beater.

The N/D868 has an extended low-frequency response. When used with very large monitor systems, it may be necessary to roll off the low frequencies below 100 Hz on the monitors to prevent a "boomy" sound.

EV is famous throughout the industry for high quality and robust microphones as used in studios, on stage, TV and broadcasting. Cardiline®, RE-Series, Variable-D® are all well-known industry terms. Most of EVīs microphones are low-impedance enabling long cable runs without RFI problems. By the way, it was an EV mic which amplified Neil Armstrong's famous words on his arrival on the moon's surface in 1969.

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