Astatic CTM 77 دليل المستخدم

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CTM 77
ELECTRET CONDENSER CARDIOID
MICROPHONE
Industrial Audio Products
Description
The Astatic CTM 77 is a superior low-noise, electret condenser cardioid
microphone designed for professional vocalists and musicians. The CTM 77
provides the performance and features to satisfy today's most demanding
professionals.
The wide and flat frequency response of the CTM 77 provides natural transparent
sound quality. The cardioid pickup pattern minimizes annoying feedback (when
used close to sound reinf

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SPECIFICATIONS FOR CTM 77 Specifications Generating Element: Electret condenser (Phantom Powered) Polar Pattern: Unidirectional (Cardioid) Frequency Response: 50 Hz - 18 kHz Output Level: Open Circuit Voltage: -55 dB (0 dB = 1 volt per microbar) Impedance: @ 1 kHz 500 ohms Dynamic Range: 110 dB Equivalent Noise Level: Less than 22 dB, A weighted Maximum SPL: 132 dB (1% THD, open circuit) Powering: Supply Voltage: 9 - 52 Vdc, positive pins 2 & 3 reverse polarity protected Current Required: Less t