Selected Features; Brief Description - AKG C451 B User Instructions

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3 Description
3.1

Selected Features

Selected
Features
• Same transducer as in the legendary CK1
• Rugged construction
• Low self-noise
• Low current consumption
• High reliability
• Transformerless output stage
• Operates on phantom power to IEC 61938
• Built-in, switchable 10-dB or 20-dB preattenuation pad
• Built-in, switchable 12 dB/octave highpass filter
• at 75 Hz or 150 Hz
3.2

Brief Description

Brief
Description
The C451 B is an updated rerun of a classic AKG condenser
microphone, the C451 EB + CK1. The new C451 B, however, uses
a fixed capsule to eliminate the mechanical problems of the original
modular design. The microphone is the perfect choice for any
application where sounds, particularly their transient content, need
to be captured with maximum accuracy.
Owing to its extremely light diaphragm, the microphone is highly
insensitive to handling noise. An all-metal body provides efficient
protection from RF interference and the microphone is rugged
enough to give excellent results even under very harsh conditions.
20 C451 B MANUAL
A switchable 10-dB/20-dB preattenuation pad increases the
microphone's SPL capability when close-miking high-energy sound
sources or driving preamps or mixers with limited headroom.
A switchable highpass filter at 75 Hz or 150 Hz helps minimize low-
end distortion that may be caused, e.g., by rumble or wind noise.
The slope of the filter is approx. 12 dB/octave and its corner fre-
quency (3 dB down point) is selectable at 75 Hz or 150 Hz.
C451 B MANUAL
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