Audio-Technica BP28L Manual

Audio-Technica Mikrofon BP28L

Læs gratis den danske manual til Audio-Technica BP28L (2 sider) i kategorien Mikrofon. Denne vejledning er vurderet som hjælpsom af 45 personer og har en gennemsnitlig bedømmelse på 5.0 stjerner ud af 23 anmeldelser. Har du et spørgsmål om Audio-Technica BP28L, eller vil du spørge andre brugere om produktet?

Download PDF

Side 1/2

BP28L Line + Gradient Large Diaphragm

Condenser Microphone

Broadcast & Production

Features

• Ideal for ﬁlm/TV production and broadcasting applications

• Large-diaphragm condenser element and optimized circuitry deliver

exceptional low-noise performance

• Overall length of 22.4" (567.9 mm) with an extremely narrow, highly

directional pickup pattern

• Transformer-coupled output provides smooth sonic character, and maintains a

constant load output impedance for a stable relationship between the mic and

mic preamp

• Extremely high sensitivity (-23 dBv), wide dynamic range (135 dB), and high-

SPL capability (138 dB)

• Flat frequency response for accurate sound reproduction

• Rugged housing made of lightweight, structural-grade aluminum alloy

• Switchable 80 Hz high-pass ﬁlter and -10 dB pad

Description

The BP28L combines a large-diaphragm condenser element with a 28 mm diameter

shotgun body for exceptional low-noise performance.

With an extremely tight pickup pattern and a patented acoustic port design that

maintains directionality across the entire frequency range, this 22.4" shotgun

microphone is specially tailored to meet the needs of broadcast, ﬁlm, television,

outdoors recording and theater applications. Particularly suitable for long-distance

miking for ﬁlm or theater, the BP28L has an exceptionally low noise ﬂoor (3 dB) and

transformer-coupled outputs that produce a smooth sonic character. The microphone

also provides extremely high sensitivity (-23 dBV), wide dynamic range (135 dB), and

high-SPL capability (138 dB), and is equipped with a switchable 80 Hz high-pass ﬁlter

and 10 dB pad.

Operation and Maintenance

The BP28 requires 11V to 52V phantom power for operation.

Output is low impedance (Lo-Z) balanced. The signal appears across Pins 2 and 3;

Pin 1 is ground (shield). Output phase is “Pin 2 hot”— positive acoustic pressure

produces positive voltage at Pin 2.

To avoid phase cancellation and poor sound, all mic cables must be wired

consistently: Pin 1-to-Pin 1, etc.

An integral 80 Hz high-pass ﬁlter provides easy switching from a ﬂat frequency

response to a low-end roll-o. The roll-o position reduces the pickup of low-

frequency ambient noise (such as trac, air-handling systems, etc.), room

reverberation and mechanically coupled vibrations. To engage the high-pass ﬁlter,

use the end tip of a paperclip or other small pointed instrument to slide the switch

toward the “bent” line.

The microphone is also equipped with a switchable 10 dB pad that lowers the

474.2 mm (18.7")

567.9 mm (22.4")

93.7 mm (3.7")

φ28.0 mm (1.1")

microphone’s sensitivity, thus providing higher SPL capability for ﬂexible use with a

wide range of users and system conﬁgurations. To engage the 10 dB pad, use the

end tip of a paperclip or other small pointed instrument to slide the switch toward

the -10 position.

Note: The power module and interference tube are detachable. Make certain this

connection is hand-tight before use.

Avoid leaving the microphone in the open sun or in areas where temperatures exceed

110° F (43° C) for extended periods. Extremely high humidity should also be avoided.

BP28L

Audio-Technica Corporation

audio-technica.com

Speciﬁcations

Fixed-charge back plate, permanently

polarized condenser

Line + gradient

20-20,000 Hz

80 Hz, 18 dB/octave

-10 dB

-23 dB(70.8 mV) (0 dB=1 V/Pa, 1 kHz)

250 ohms

138 dB SPL (1 kHz at 1% THD), 148 dB

SPL (When pad is on.)

3 dB SPL (A-weighted)

135 dB (1 kHz at Max SPL)

91 dB (1 kHz at 1 Pa, A-weighted)

11-52 V DC, 3.4 mA

Low cut: on/o, Pad: on/o

313 g (11 oz)

567.9 mm (22.4") long, 28.0 mm (1.1")

maximum body diameter

Integral 3-pin XLR-M type

SG7

Windscreen (AT8169), holder (AT8470),

stand adapter (⅜"-⅝"), carry case

Element

Polar pattern

Frequency response

Low frequency roll-o

Pad

Open circuit sensitivity

Impedance

Maximum input sound level

Noise1

Dynamic range (typical)

Signal-to-noise ratio1

Phantom power requirements

Switches

Weight

Dimensions

Output connector

Audio-Technica case style

Accessories furnished

In the interest of standards development, A.T.U.S.

oers full details on its test methods to other industry

professionals on request.

1 Pascal = 10 dynes/cm2 = 10 microbars = 94 dB SPL

1 Typical, A-weighted, using Audio Precision System One.

Specications are subject to change without notice.

polar pattern

12" or more on axis

LEGEND

Frequency in Hertz

Response in dB

10 dB

100

50 200 10k5k1k500 2k 20k

Roll-off

LEGEND

200 Hz

1 kHz

5 kHz

8 kHzSCALE IS 5 DECIBELS PER DIVISION

240˚

180˚

210˚

270˚

300˚

330˚ 0˚

150˚

120˚

90˚

30˚

60˚

frequency response: 20 –20,000 Hz

To reduce the environmental impact of a multi-language printed document, product information

is available online at www.audio-technica.com in a selection of languages.

An de réduire l’impact sur l’environnement de l’impression de plusieurs langues, les

informations concernant les produits sont disponibles sur le site www.audio-technica.com dans

une large sélection de langue.

Para reducir el impacto al medioambiente, y reducir la producción de documentos en varios

leguajes, información de nuestros productos están disponibles en nuestra página del Internet:

www.audio-technica.com.

Para reduzir o impacto ecológico de um documento impresso de várias linguas, a Audio-Technica

providência as informações dos seus produtos em diversas linguas na www.audio-technica.com.

Per evitare l’impatto ambientale che la stampa di questo documento determinerebbe, le

informazioni sui prodotti sono disponibili online in diverse lingue sul sito www.audio-technica.com.

Der Umwelt zuliebe nden Sie die Produktinformationen in deutscher Sprache und weiteren

Sprachen auf unserer Homepage: www.audio-technica.com.

Om de gevolgen van een gedrukte meertalige handleiding op het milieu te verkleinen, is

productinformatie in verschillende talen “on-line” beschikbaar op: www.audio-technica.com.

www.audio-technica.com

本公司基于减少对环境的影响，将不作多语言文檔的印刷，有关产品信息可在

www.audio-technica.com的官方网页上选择所属语言和浏览。

Produkt Specifikationer

Mærke:	Audio-Technica
Kategori:	Mikrofon
Model:	BP28L
Type:	Scene/optræden mikrofon
Produktfarve:	Sort
Forbindelsesteknologi:	Ledningsført
Enhedsgrænseflade:	mini XLR (3-pin)
Bæretaske:	Ja
Bæredygtighedscertifikater:	RoHS
Mikrofonindgangsimpedans:	50 ohm (Ω)
Mikrofon frekvens:	20 - 20000 Hz
Mikrofon sensitivitet:	-29 dB
Mikrofon vægt:	136 g
Overholdelse af bæredygtighed:	Ja
Antal produkter inkluderet:	1 stk
Mikrofon dimensioner (DxH):	21 x 395 mm
Mikrofon, signal-til-støjforhold:	81 dB
Mikrofon dynamikområde:	128 dB
Lavskåret filter:	80 Hz