Listen Technologies LA-261 Manuale utente
Don’t miss a single sound. Listen.
Listen Technologies Corporation
8535 South 700 West, Suite A
Sandy, Utah 84070-2515 USA
Telephone: +1.801.233.8992
Toll Free (North America): 1.800.330.0891
Fax: +1.801.233.8995
E-mail: info@ListenTech.com
User’s Manual
Listen Microphones
Includes:
LA-261 Lapel Microphone
LA-262 Over-the-Head Microphone
LA-268 Over-the-Ear Microphone
LA-270 Noise Canceling Microphone
LA-272 Over-the-Head Microphone with Earphone
LA-273 Over-the-Ear Microphone with Earphone
LA-274 Hand Held Microphone
LA-276 Collar Microphone
LA-277 Conference Microphone
LA-278 Behind-the-Head Microphone
Welcome to Listen!
i
Dear Valued Customer,
Thank you for choosing Listen! All of us at Listen are dedicated to providing you
the highest quality products and prompt, efficient customer care. Our products are
manufactured in an ISO-9000 factory that has been independently certified to
the highest quality standards. We stand ready to answer any questions you
might have during installation or in the operation of our products. Should
there be any problems with your Listen products, we are ready to help you
in any way we can. Should you have any comments on how we might
improve our products or our service, we’re here to listen. Here’s how
to reach us:
Telephone: +1.801.233.8992
Fax: 1.801.233.8995
Toll Free (North America): 1.800.330.0891
E-Mail: support@ListenTech.com
Web: www.ListenTech.com
Thank you... and enjoy your listening experience!
Best regards,
The Listen Team
Listen®and the Listen logo are registered trademarks of Listen Technologies Corporation
Microphones_2004_06_16 © 2004 Listen Technologies Corporation. All Rights Reserved.
All Listen microphones are designed
for use with the LT-700 portable
transmitter. Only microphones sold by
Listen should be used with your LT-700.
Your Listen microphone will also work
with other manufacturers’ products
that supply 3VDC phantom power.
Table of Contents
1
Important Information About Microphone Sensitivity Settings . . . . . . . . . . . . . . .2
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
LA-261 Lapel Microphone . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
LA-262 Over-the-Head Microphone . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
LA-268 Over-the-Ear Microphone . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
LA-270 Noise Canceling Microphone . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
LA-272 Over-the-Head Microphone with Earphone . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
LA-273 Over-the-Ear Microphone with Earphone . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
LA-274 Hand Held Microphone . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
LA-276 Collar Microphone . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
LA-277 Conference Microphone . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
LA-278 Behind-the-Head Microphone . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
Product specifications for all microphones . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
Table of Contents
2
Important Information
Important Information About Microphone Sensitivity Settings
When you connect your Listen Microphone to your LT-700 Portable Transmitter, you must make
sure that the microphone sensitivity switch (located inside the front cover of the LT-700) is set
to the sensitivity specified for your microphone. If this switch is not in the correct position, your
audio may sound low or distorted. Please note the sensitivity setting for your microphone and
check the switch setting in the LT-700 prior to using your Listen equipment.
The microphone sensitivity
switch is located inside the
front cover of the LT-700.
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LA-261 Lapel Microphone omni-directional MID
LA-262 Over-the-head Microphone uni-directional MID
LA-268 Over-the-ear Microphone omni-directional MID
LA-270 Noise Canceling Microphone uni-directional MID
LA-272 Over-the-head Mic with Earphone uni-directional MID
LA-273 Over-the ear Mic with Earphone uni-directional MID
LA-274 Hand-held Microphone omni-directional HI
LA-276 Collar Microphone uni-directional HI
LA-277 Conference Microphone omni-directional MID
LA278 Behind-the-head Microphone uni-directional MID
3
Introduction
Introduction
Your Listen microphone is designed to provide high quality audio when
used with a Listen LT-700 Portable Transmitter. Listen microphones will
work with LT-700 units on either 72 MHz or 216 MHz. Your Listen
microphone will also work with any product that supplies 3VDC phantom
power and conforms to the diagram below.
To achieve the desired audio quality from your Listen microphone, it is
important to use it as instructed. The instructions for your microphone
provide guidelines on placement and use.
If you experience trouble with your microphone, check the troubleshooting
section of this manual first to try to resolve the problem. If you are still
having difficulties, contact Listen support (support information available on
inside cover of this manual).
Tip Ring Sleeve Line Input
Ground Microphone
3.5mm jack
4
LA-261 Lapel Mic
The LA-261 has an omni-directional pick-up pattern. This means that
audio from a broader area can be picked up by the microphone element.
The main advantage of this type of microphone is that it does not have to
be oriented directly towards your mouth for good audio pickup.
Using the LA-261 Lapel Microphone
The LA-261 Lapel Microphone is a high performance, non-directional
microphone that clips on your collar or lapel.
element
5
LA-261 Lapel Mic
Using the LA-261 Lapel Microphone
• Set the microphone sensitivity switch (located inside front cover of the
LT-700 Portable Transmitter) to the MID position.
• Clip the microphone as close as possible to your mouth. For best results
the mic element should be no more than 6 inches from your mouth.
This will help to ensure that the microphone picks up your voice rather
than room noise.
• Make sure the microphone is not rubbing on your face or clothing.
• Connect the plug firmly to the microphone connector on the LT-700.
6
LA-262 Over-the-head Mic
LA-262 Over-the-Head Microphone
element
The LA-262 has a uni-directional pick-up pattern. This means that
the microphone’s element must be oriented towards your mouth.
It will not pick up audio very well from the side of the microphone.
The main advantage of this type of microphone is that it helps
minimize feedback and picks up less environmental noise.
The LA-262 Over-the-Head Microphone provides high quality audio
pick-up with its directional boom microphone.
7
LA-262 Over-the-Head Mic
Using the LA-262 Over-the-Head Microphone
• Set the microphone sensitivity switch (located inside front cover of the
LT-700 Portable Transmitter) to the MID position.
• Place the unit over your head and position the microphone as close as
possible to your mouth. For best results the mic element should be 1 to
2 inches from your mouth. This will help to ensure that the microphone
picks up your voice rather than room noise.
• Make sure the microphone is not rubbing on your face or clothing.
• Connect the plug firmly to the microphone jack on the LT-700.
8
LA-268 Over-the-Ear Mic
LA-268 Over-the-Ear Microphone
The LA-268 Over-the-Ear Microphone high provides quality audio pick-up with its
directional boom microphone.
element
The LA-268 has an omni-directional pick-up pattern. This means that
audio from a broader area can be picked up by the microphone element.
The main advantage of this type of microphone is that it does not have to
be oriented directly towards your mouth for good audio pickup.
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