Altec Lansing Industrial Professional Sound Products Spec site

ALTEC LANSING INDUSTRIAL PROFESSIONAL SOUND PRODUCTS MICROPHONE LIST

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AL50ND Vocal Cardioid Neodymium Dynamic Microphone

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1597B Passive Monitor Panel

ARCHITECT'S and ENGINEER'S SPECIFICATION

The microphone shall be a dynamic with cardioid polar pattern. The microphone shall have a widerange uniform frequency response from 65 to 19,000 Hz. The open circuit voltage sensitivity shall be 2.2 mV/Pascal at 1,000 Hz and the power level sensitivity shall be -53 dB at 1,000 Hz where 0 dB equals l mW/Pascal. The magnetic circuit shall be a nonwelded circuit and employ a neodymium alloy magnet. The rated impedance shall be 150 ohms. The output shall be balanced to ground and phased. Pin 2 shall have a positive voltage with reference to Pin 3 with positive pressure on thediaphragm. The screen shall be manufactured of dent resistant steel. The case shall be made of diecast zinc with built-in cable connector similar or equivalent to the Switchcraft A3M. The product finish is matte black. The height shall be 6.67 inches (169 mm), diameter 1.97 inches (50 mm) and shank diameter or 0.75 inches (19 mm). A stand clamp shall be provided for mounting provisions. The microphone shall be the Altec Lansing model AL50ND.

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