Akg C 451B Handleiding

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C 451B

Studio Cardioid Condenser Microphone

Description

The C 451 B is the latest model in the C 451 series that

dates back to 1969. It is a cardioid only design with a

permanently fixed capsule (a departure from the previous

modular system). The acoustics of the original cardioid

capsule, CK 1, are modeled and matched in the current

version, producing the unique overall rising frequency

characteristics. The rise is no more than 3 dB and is broadly

centered around 12 kHz.

Its transformerless preamp uses surface mount technology

and, therefore is lighter, yet more rugged than its

predecessor. Switchable 10 and 20 dB pads are now

integrated. Maximum sound pressure levels in the range of

155 dB (in the 20 dB sensitivity position) can be attained with

no greater than 0.5% distortion. A selectable low frequency,

or bass roll-off option, provides 12 dB per octave attenuation

below 75 or 150 Hz.

The C 451 B, like its predecessor, is most commonly used

in studio and tour sound applications such as micing choirs,

drums, percussion and acoustic guitars.

It is available as a single piece or in computer matched

stereo pairs, and operates on all phantom voltages between

9 and 52 volts.

The SA 40 stand adapter and W 90 windscreen are

included as standard accessories.

Features

•Ultra-smooth response with slight

rising on-axis frequency

characteristic

•High front-to-back rejection ratio

•Transformerless output for low

distortion at high operating levels

•10 and 20 dB pad

•Switchable 12-dB roll-off at 75 or

150 Hz

Specifications

Transducer type:condenser

Frequency response:20 Hz to 20 kHz

Sensitivity at 1 kHz:9 mV/Pa (-41 dBV)

Self noise level: 18 dB-A

Dynamic range: 117 dB

Polar pattern:cardioid

Impedance:200 ohms

Load impedance:>1000 ohms

Switchable pad: -10 and 20 dB–

Sound pressure level for 0.5% THD:

135 dB SPL (unpadded)

145 dB SPL (-10 dB pad)

155 dB SPL (-20 dB pad)

LF roll-off:12 dB/octave at 75 and 150 Hz

Power requirement:Phantom powering, 9 to 52 Vdc

Output connector: 3-pin XLR-M

Finish:Satin nickel

Size:.75 inches diameter (19 mm)

6.3 inches length (160 mm)

Net/shipping weight:4.4 oz. (125 g)/1.7 lbs. (760 g)

Included accessories: SA 40 stand adapter

W 90 foam windscreen

padded carrying case

H 50 stereo bar (stereo pair only)

Product specificaties