450 SHURE, 450 Datasheet
450
Manufacturer Part Number
450
Description
SERIES 2 MICROPHONE
Manufacturer
SHURE
Datasheet
1.450.pdf
(2 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
450-01301
Manufacturer:
Parallax Inc.
Quantity:
53
Part Number:
450-0148R
Manufacturer:
LAIRD
Quantity:
20 000
Company:
Part Number:
450-01601
Manufacturer:
Parallax Inc.
Quantity:
310
Company:
Part Number:
450-060
Manufacturer:
BIV
Quantity:
4 500
SHURE MODEL 450 SERIES II
PAGING AND DISPATCHING MICROPHONE
The Shure Model 450 Series II is a high output dynamic mi-
crophone designed for paging and dispatching applications.
This extremely rugged microphone features an omnidirec-
tional pickup pattern and a frequency response tailored for
optimum speech intelligibility. It also includes an impedance
selection switch and a locking press-to-talk switch. The
press-to-talk switch can be converted to a monitor/transmit
switch with the Shure RK199S Split-Bar Conversion Kit.
Features
•
•
•
•
•
PRESS-TO-TALK SWITCH OPERATION
To operate the control bar as a press–to–talk switch, simply
hold it down and begin speaking. When you are finished
speaking, release the control bar.
To lock the control bar in the “on” position, press it down and
pull it forward. To unlock the control bar, push it back and re-
lease it.
IMPEDANCE SELECTION
To select high or low impedance, move the impedance selec-
tion switch, located under the microphone base, to either the
HIGH or LO position. The switch is factory pre–set to LO.
Shure recommends the low impedance setting if long
lengths of cable are used, or if severe hum is encountered.
Use Shure A95 Line Matching Transformers to match a low
impedance (300 Ω) microphone line to a high impedance
amplifier input.
2005, Shure Incorporated
27C2917 (Rev. 3)
Dual impedance
Locking press-to-talk switch
Rugged ARMO-DUR
Adjustable height
Optional monitor/transmit switch conversion kit
R
base and case
WIRING CONNECTIONS
Refer to Figure 1 and Table 1 below. For unbalanced opera-
tion, the GREEN wire is connected to the audio input, the
WHITE wire is connected to the audio ground, and the
SHIELD is connected to chassis ground. In some cases, au-
dio ground and chassis ground will be the same.
For balanced operation, the GREEN wire is connected to the
positive audio input, the WHITE wire is connected to the
negative audio input, and the SHIELD is connected to chas-
sis ground.
NOTE: The RED and BLACK leads are not part of the audio
circuit. These wires provide a contact closure when the press-
to-talk switch is depressed. This closure may be used to con-
trol an external relay or a transmit/receive circuit.
CHANGING PTT CIRCUIT TO NORMALLY OPEN
Using microphones in parallel requires a normally open mi-
crophone circuit. To modify the press–to–talk switch so that
it provides a normally open circuit, proceed as follows:
1. Remove the screws, washers, and bottom plate from
2. Unsolder the black, red, and white leads from the terminal
3. Replace the bottom plate and secure it with the screws
UNBALANCED
INPUT TYPE
BALANCED
the microphone.
of the press–to–talk switch (see Figure 1). Make
sure these leads are still soldered together. If necessary,
resolder them and insulate the connection.
and washers removed in Step 1.
ORANGE
RED
Table 1. Typical Cable-to-Connector Wiring
Model 450 Series II User Guide
GREEN
LO
IMPEDANCE SWITCH
COLOR
GREEN
SHIELD
GREEN
SHIELD
WHITE
WHITE
WIRE
HI
WIRING DIAGRAM
CHASSIS GROUND
CHASSIS GROUND
YELLOW
AUDIO GROUND
FIGURE 1
FUNCTION
AUDIO +
AUDIO –
AUDIO
BLACK
PRESS-TO-TALK SWITCH
CONNECTOR
1 2
PIN 2
PIN 3
PIN 1
PIN 2
PIN 3
PIN 1
XLR
3
Printed in U.S.A.
PHONE JACK
SLEEVE
SLEEVE
SLEEVE
1/4 IN.
RING
TIP
TIP
BLACK
RED
WHITE
GREEN
SHIELD
Related parts for 450
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
CARDIOID DYNAMIC, LOW Z, HEAD WORN WITH SINGLE EARPHONE
Manufacturer:
SHURE
Part Number:
Description:
PTH Control Device, 2 Detachable Cables (9" And 3)
Manufacturer:
SHURE
Part Number:
Description:
WiFi / 802.11 Modules & Development Tools TiWi01-R2 Module with U.FL Connector
Manufacturer:
LS Research
Datasheet:
Part Number:
Description:
Conn Unshrouded Header HDR 30 POS 2.54mm Solder ST Thru-Hole
Manufacturer:
Precidip
Part Number:
Description:
DEV KIT, PROFLEX01-R2 F ANTENNA
Manufacturer:
LS Research
Datasheet:
Part Number:
Description:
TIWI5 MODULE, ROHS
Manufacturer:
LS Research
Datasheet:
Part Number:
Description:
TiWi-SL EM with Chip Antenna
Manufacturer:
LS Research
Datasheet:
450 Summary of contents
Page 1
... SHURE MODEL 450 SERIES II PAGING AND DISPATCHING MICROPHONE The Shure Model 450 Series high output dynamic mi- crophone designed for paging and dispatching applications. This extremely rugged microphone features an omnidirec- tional pickup pattern and a frequency response tailored for optimum speech intelligibility. It also includes an impedance selection switch and a locking press-to-talk switch ...
Page 2
... 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 Intl 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 R96 C31C RK141S RK199S ...