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Shure mikrofon 545SD

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545SD -- Vocal Microphone

General Description

The Model 545SD is a dual-impedance, unidirec-

tional, dynamic microphone. Shipped connected

for low-impedance operation, it features a silent

magnetic reed on/off switch.

The Classic Unidyne is a favorite for instrument

pickup and recording,and can be used on

lecterns for public address systems such as

those used in political conventions and legisla-

tures, convention halls, hotels, public auditori-

ums, stadiums, schools, and churches.

Features

•Exceptionally uniform cardioid pattern minimizes feedback in PA applications

•Selectable dual-impedance operation

•Silent magnetic reed on/off switch with lock option

•Cardioid dynamic

•Frequency response: 50 to 15,000 Hz

Connections

When using the microphone with a balanced input, pins 2 and 3 are the audio signal carriers. When using the mi

crophone with an unbalanced input, use a cable wired with pin 2 as the signal carrier and pin 3 connected to the

cable shield (ground), such as the Shure C20AHZ high-impedance cable.

Shure Incorporated

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Impedance Selection

The microphone is shipped connected for low impedance operation. To change to high impedance, proceed as fol

lows:

1. Remove plug element at receptacle end of microphone by turning slotted setscrew in (counterclockwise) and

carefully withdrawing plug element from case.

2. Disconnect 2-terminal impedance selection socket from rear of plug element.

3. Reconnect 2-terminal impedance selection socket in reverse position so that pin 3 of plug element is inserted

in socket terminal "H" (White).

4. Reassemble plug element into microphone and seal setscrew securely by turning out (clockwise).

IMPEDANCE SELECTION RECEPTACLE END OF MICROPHONE

Polarity

All cables and microphones should be tested to ensure that they have the same polarity. To test two microphones

and/or their cables for proper polarity, connect them to an amplifier and talk or sing into them while holding them

three or four inches apart. The sound from the speakers should be the same when talking into either microphone

or directly between them. If the sound drops drastically, or if a dead spot is found when talking between the two mi

crophones, either the microphones or their cables have opposite polarity.

To change the polarity of a microphone cable, either use a Shure A15PRS phase reverser or interchange the wires

connected to pins 2 and 3 of the threepin connector at one end of the cable. To change the polarity of a micro

phone, the microphone cartridge leads must be interchanged. This should be performed by your dealer, the Shure

Factory Service Department, or other qualified service personnel.

Specifications

Type

Dynamic (moving coil)

Frequency Response

50 to 15,000 Hz

Shure Incorporated

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Impedance

Dual. Microphone rating impedance is 150 ohms (250 ohms actual) for connection to microphone inputs rated at

19 to 300 ohms and 'High' for connection to highimpedance microphone inputs. Wired for low impedance as sup

plied. To change impedance, see sections on Impedance Selection and Connections.

Output Level

Open Circuit Voltage , at 1kHz

L -58.0 (1.3 dB mV

H -35.0 (17.6 dB mV

Polarity

Positive pressure on diaphragm produces positive voltage on pin 2 with respect to pin 3

Switch

Built-in magnetic reed on/off switch with lockplate. To lock switch in the ON position, remove screw on lockplate

and turn lockplate 180°. Reassemble and tighten screw.

Cartridge Shock Mount

Internal rubber vibration isolator

Swivel Adapter

Positive action, adjustable through 90° from vertical to horizontal, permits easy removal for handheld use, suitable

for mounting on stand with 5/8 in.-27 thread

Housing

Chrome-plated die casting with ARMO-DUR grille and stainless steel screen

Net Weight

less cable

255 (9oz.) g

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Produktspecifikationer

Varumärke:	Shure
Kategori:	mikrofon
Modell:	545SD
Färg på produkten:	Grijs
Vikt:	1200 g
Höjd:	108.4 mm
Snäll:	IP-beveiligingscamera
Internationell säkerhetskod (IP):	IP66
LED-indikatorer:	Power, Status
Blåtand:	Nee
Monteringsverktyg:	Ja
Ljudformat som stöds:	AAC, G.711
Videoformat som stöds:	H.264
Vormfaktor:	Dome
Placeringsstöd:	Buiten
Anslutningsteknik:	Bedraad
Ethernet LAN:	Ja
Monteringsmetod:	Plafond
Maximal upplösning:	3840 x 2160 Pixels
Totalt antal megapixlar:	8 MP
Videokomprimeringsformat:	H.264, H.265
Diameter:	160 mm
Typ av strömkälla:	DC, PoE
Strömutgång (volt):	12
Strömutgång (ampere):	3 A
Minimal belysning:	0.05 Lux
Synfältsvinkel (FOV).:	106 °
Antal kameror:	1
Kompatibla minneskort:	MicroSD (TransFlash), SD, SDHC, SDXC
Inbyggd hårddisk:	Nee
Nattseende:	Ja
LED-typ:	IR
Ljudsystem:	1-weg
Antal Ethernet LAN (RJ-45)-portar:	1
Fokus:	Handmatig
Brännvidd:	3.3 - 12 mm
Strömförbrukning (max):	11.04 W
Certifiering:	CE, FCC, RCM, LVD, RoHS
Optisk sensorstorlek:	1/2.5 "
Bildsensortyp:	CMOS
Kamerans slutartid:	1/30 s
vitbalans:	Auto, Manual
Typ kamerasluter:	Elektronisch
Grafikupplösningar som stöds:	320 x 240,640 x 360,640 x 480 (VGA),1024 x 768 (XGA),1280 x 720 (HD 720),1280 x 960,1600 x 1200 (UXGA),1920 x 1080 (HD 1080),2048 x 1536 (QXGA),2560 x 1440,2560 x 1920,3840 x 2160
Hållbarhetscertifikat:	RoHS
Förvaringstemperatur:	-20 - 50 °C
Storlek på medföljande minneskort:	8 GB
Max 30 bilder per sekund:	30 fps
Nätverksprotokoll som stöds:	DHCP, DynDNS, FTP, HTTP, HTTPS, NTP, ONVIF(ProfileS), RTSP, SMTP, TCP, UDP
Ljudutgångskanaler:	1 kanalen
Progressiv skanning:	Ja
Signal-brusförhållande:	50 dB
Språk som stöds:	CHI (TR), ENG, JPN
Jag kodar:	IK10
Inklusive skruvar:	Ja
Rotationsvinkel:	340 °
Panoreringsintervall:	0 - 350 °
Dag/nattläge:	Ja
Antal linser:	1
Maximalt antal bländare:	1.4
Styr kamerapanorering:	Ja
Kameralutningsfunktion:	Ja
Antal sensorer:	1
Videostreaming:	Ja
Inkluderar minneskort:	MicroSD
Night vision scope:	40 m
Antal LED-belysning:	20
Infrarött (IR) termineringsfilter:	Ja
Antal effektiva pixlar (H x V):	3840 x 2160 Pixels
Antal språk:	4
Wide Dynamic Range (WDR):	Ja
Wifi:	Nee
Drifttemperatur (TT):	-30 - 50 °C
Relativ luftfuktighet i drift (VV):	10 - 90 procent
Tiltvinkelområde:	0 - 75 °
Justering av slutarhastighet:	Automatisch/handmatig
Ljudingångskanaler:	1 kanalen
Temperatursensor:	Ja