Shure SM87A Guia Del Usuario
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SM87A
SUPERCARDIOID CONDENSER MICROPHONE
The Shure Model SM87A is a professional-quality, hand-held
condenser microphone for use in sound reinforcement, broadcasting,
and studio recording installations. Its super-cardioid polar pattern
provides greater rejection of unwanted sound sources, making it
ideal for miking individual instruments in a multi-microphone setting
or for miking single sources in a reverberant or noisy environment.
The SM87A features a controlled low-frequency roll-off tailored
for optimum performance when close-miking sound sources.
An integral three-stage wind and pop filter protects against
wind and breath noise. Its built-in shock mount reduces stand
and handling noise. The SM87A operates on phantom power.
FEATURES
Highly directional supercardioid pickup pattern
Controlled low-frequency roll-off
Very low RF and magnetic hum susceptibility
Minimally affected by varying load impedance
Built-in wind and pop filter
Transducer element shock mounted
Rugged construction for outstanding reliability
Field-usable over a wide range of temperature and
humidity conditions
Accepts a wide variety of phantom power sources,
including DIN 45 596 voltages of 11 and 52 Vdc
27C2964 (Rev. 6)
©2006, Shure Incorporated
Model SM87A User Guide
APPLICATION AND PLACEMENT
Some of the most common applications and placement
techniques are listed in the following table. Keep in mind
that microphone technique is largely a matter of person-
al taste—there is no one "correct" microphone position.
SUGGESTED MICROPHONE
PLACEMENT
Lips less than 15 cm (6 in.) away
or touching the windscreen, on
axis to microphone.
15 to 60 cm (6 in. to 2 ft.) away
from mouth, just above nose
height.
20 to 60 cm (8 in. to 2 ft.) away
from mouth, slightly off to one side.
.90 cm to 1.8 m (3 to 6 ft) away.
GENERAL RULES FOR MICROPHONE USE
1.
Aim the microphone toward the desired sound source and at
a 125° angle away from unwanted sources. Don't place un-
wanted sound sources directly to the rear of the microphone
since supercardioid microphones, such as the SM87A, have
a narrow pick up range at about 180°. Refer to Figure 1.
2.
Place the microphone as close as practical to the desired
sound source. Refer to the table above.
3.
Use only one microphone for each sound source.
4.
Keep the distance between microphones at least three times
the distance from each source to its microphone.
5.
Place microphones as far as possible from reflective surfaces.
6.
Work close to the microphone for extra bass response.
7.
Use the fewest number of microphones as is practical.
8.
Add a windscreen when using the microphone outdoors.
9.
Avoid excessive handling to minimize pick up of mechanical
noise and vibration.
10.
Do not cover any part of the grille with your hand.
o
180
o
o
125
125
o
90
o
90
o
180
o
0
CORRECT
POSITIONING UNWANTED SOUND SOURCES
TONE QUALITY
Robust sound, emphasized bass,
maximum isolation from other
sources.
Natural sound, reduced bass.
Natural sound, reduced bass and
minimal "s" sounds.
Thinner, distant sound; noticeable
levels of ambient noise.
o
180
o
90
o
o
90
0
o
125
o
90
o
0
CORRECT
INCORRECT
FIGURE 1
Printed in U.S.A.
o
90

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  • Página 1 Work close to the microphone for extra bass response. wind and breath noise. Its built-in shock mount reduces stand Use the fewest number of microphones as is practical. and handling noise. The SM87A operates on phantom power. Add a windscreen when using the microphone outdoors. FEATURES Avoid excessive handling to minimize pick up of mechanical •...
  • Página 2 Dimensions Wind Noise See Figure 4 The SM87A has an integral wind and pop filter which provides Net Weight excellent protection against most wind and breath noise. Un- 200 grams (7 oz) der adverse conditions, such as high winds or close proximity to a “problem”...
  • Página 3 «bonne» position de microphone. Alimentation PLACEMENT CONSEILLÉ QUALITÉ DE LA TONALITÉ Le SM87A nécessite une alimentation en duplex. Elle peut être DU MICROPHONE fournie au microphone par une alimentation externe (telle que le modèle Shure PS1A) ou directement par les préamplificateurs, Lèvres à...
  • Página 4 Bruits de vent Alimentation Spécification de l’alimentation en duplex 11 à 52 V c.c., Le SM87A est doté d’un filtre coupe–vent et «pop» qui of- positifs aux bornes 2 et 3 fre une excellente protection contre la plupart des bruits de vent et de respiration.
  • Página 5 EMPFOHLENE MIKROFON- KLANGQUALITÄT Das SM87A erfordert Phantomspeisespannung. Das Mikrofon kann PLAZIERUNG durch ein externes Netzteil (wie z.B. das Modell Shure PS1A) oder direkt von Vorverstärkern, Mischern oder Standgeräten mit einge- Lippen weniger als 15 cm ent- Robuster Klang, betonter bauter Phantomspeisung versorgt werden. Geeignete Spannung- fernt oder berühren den Wind-...
  • Página 6: Mitgeliefertes Zubehör

    Windgeräusche Stromversorgung Erforderliche Phantomspeisespannung ..11 bis 52 Volt Das SM87A verfügt über einen integrierten Wind– und Popfilter, der Gleichspannung, positiv an beiden Pins 2 und 3 ausgezeichneten Schutz vor den meisten Wind– und Atemgeräuschen Stromentnahme ..... 1,0 bis 1,2 mA bietet.
  • Página 7: Sm87A Microfono De Condensador Supercardioide

    Apunte el micrófono hacia la fuente sonora deseada y a un ángulo de 125° de las fuentes no deseadas. No colo- El modelo SM87A de Shure es un micrófono de condensador de que las fuentes sonoras no deseadas directamente ”de- mano de calidad profesional para uso con sistemas de sonido trás”...
  • Página 8: Especificaciones

    Alimentación Potencia fantasma requerida ..11 a 52 VCC, El SM87A tiene un filtro incorporado que proporciona protección positivo en las clavijas 2 y 3 excelente contra la mayor parte de los ruidos del viento y del Consumo de corriente.
  • Página 9 125° rispetto alle sorgenti indesiderate. A SUPERCARDIOIDE Non collocate sorgenti sonore indesiderate direttamente Il Modello SM87A Shure è un microfono palmare a condensatore dietro il microfono, perché i microfoni a supercardioide, di qualità professionale, adoperabile in impianti di amplificazione come ad esempio il SM87A, hanno uno stretto campo di sonora, radiodiffusione e in studi di registrazione.
  • Página 10: Dati Tecnici

    Rumore del vento Polarità Una pressione positiva sul diaframma produce una tensione Il SM87A è dotato di un filtro fonoassorbente e antischiocco inte- positiva sul piedino 2 rispetto al piedino 3 grale che garantisce un’ottima protezione contro i rumori causati dal vento e dalla respirazione.
  • Página 11 10 mm (3/8 in.) –20 dB –20 dB –15 dB –15 dB –10 –10 dB –10 dB –5 dB –5 dB 1000 10000 20000 100 Hz 3150 Hz 500 Hz, 1000 Hz 10000 Hz TYPICAL POLAR PATTERN TYPICAL FREQUENCY RESPONSE COURBE DE DIRECTIVITÉ...
  • Página 12 United States, Canada, Latin America, Caribbean: 5800 W. Touhy Avenue, Niles, IL 60714-4608, U.S.A. Phone: 847-600-2000 U.S. Fax: 847-600-1212 Int’l Fax: 847-600-6446 Europe, Middle East, Africa: Shure Europe GmbH, Phone: 49-7131-72140 Fax: 49-7131-721414 Asia, Pacific: Shure Asia Limited, Phone: 852-2893-4290 Fax: 852-2893-4055...

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