Shure 503BG Handleiding

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General Description

Developed for computer voice recognition applications, the 503BG microphone

offersexcellent voice fidelity while reducing background noise. Also use the

503BG in otherclose-talking applications suchas paging andtalkback.

The 503BG featuresa low-impedance, movingcoil type transducerwithan

integral humbuckingcoil and an attached two-conductorshielded cable with

abuilt-instrain relief.Itproduces afrequency response withan essentially

constantoutputvoltage overthevoice spectrumwhenused closeto the

sound source.

The503BG'scase isaluminumwith ablack enamelfinish.It mountstoa

gooseneck, a fixedpipe ora microphone standusing a standard5/8"-27

thread. To secure the mounted BG503, tighten the 4-40 screw with the sup-

plied #4Allen (hex-head) wrench.

Features

•Optimized performanceinvoice processing and computer voicerecogni-

tion applications.

•Smooth frequency responsewith excellent fidelityin the voicerange.

•Cardioid pickup pattern and close-talking operation keep unwanted signals

and background noiseat lowlevels.

•Constant output overvoice spectrum whenclose-talked.

•Humbucking coil minimizes undesirable hum effects such as CRT inter-

ference.

•Low-impedance design permitslong cableruns in extremehum fields.

•Smallunobtrusivedesign doesnotinterfere withCRTvisibility.

•Rugged and reliablefor yearsof consistentoperation.

Operation

For best performance,speak as closeto the503BG as comfortpermits. A

distance of 1to 5cm (0.4 to2 inches) providesthe greatest discriminations

between voice andbackground noise.

Acoustic Considerations

The 503BG maximizesperformance in close-talking applications through its

tailored frequencyresponse,directionalityand distancediscrimination. It

optimizes and controlssounds within the100 to7000 Hz frequencyrange

and reducessounds outside that range.The BG503 rejectsnoise through

its inherent directionalpropertiesand discriminatesagainst distant sounds

in favor ofclose-range sounds.

Specifications

Type

Dynamic(moving coil),Unidirectional (Cardioid)

Frequency Response

100 to 7,000Hz

Impedance

170 Ωactual

Output Clipping Level

open circuit voltage

-61.5 dBV/Pa (.84mV) [1]

Polarity

Positivepressureon diaphragmproducespositive voltageon whiteconductorwithrespect to black conductor

Hum Pickup

Maximum15 dBequivalentSPLin m0efield

1/3©2017 Shure Incorporated

Model 503BG

Vocal Microphone

Product specificaties