Microphone Selections for
Vortex® Devices
Application Note
Polycom Installed
Voice Business Group
Revision 2
January 2006
Microphone Selections for Vortex Products
I. Wired (Fixed Location) Microphones
Nearly any microphone will work with the Vortex products. If you don’t already have a particular
microphone in mind, below are some common selections in alphabetical order. If links wrap to the next
sentence and don’t work on a click, cut and paste the link into your internet browser.
ASTATIC 201
http://www.astatic.com/commercial/
Tabletop or ceiling mounted cardioid microphones. The 202 version is omnidirectional.
ASTATIC 901
http://www.astatic.com/commercial/
Tabletop boundary style microphone with cardioid pickup pattern.
AUDIO TECHNICA AT851A
http://www.audio-technica.com (follow links to products page)
Tabletop boundary style microphone with cardioid pickup pattern.
AUDIO TECHNICA AT854R
http://www.audio-technica.com (follow links to products page)
Four independent microphone elements (takes up 4 mic inputs on the Vortex).
BEYERDYNAMIC MPC 22 SW
http://www.beyerdynamic.com/cms/Acoustical_Boundary.59.0.html?&L=1
Table mounted directional microphone. Point towards the talker!
Can be ordered white or black.
Application Note: “Microphone Selections for Polycom Vortex Devices” – 01/2006
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B
EYERDYNAMIC MPC 66 V WS
http://www.beyerdynamic.com/cms/Acoustical_Boundary.59.0.html?&L=1
Boundary style cardioid microphones. Available in white or black.
CLOCK AUDIO
http://www.microphones-audio.com/brochure/acatalog/Boundary-Layer.html
Boundary style cardioid microphones.
SHURE EZO
http://www.shure.com/microphones/models/ezo.asp
Hanging mics that are often used in ceiling mic configurations.
SHURE MX412 AND MX418
http://www.shure.com/microphones/models/mxgooseneck.asp
Gooseneck microphone with 12 or 18 inch length.
II. Wired Push-To-Talk Microphones
Push-to-talk, or PTT microphones remain in an “off” mode until a button is pressed. This button is normally
located at the microphone. Many varieties of PTT microphones are available; here are a few options that
can be used with your Vortex product.
AUDIO TECHNICA U891RC
http://www.audio-technica.com (follow links to products page)
A wide-range condenser microphone with a cardioid pickup pattern. The on/off switch can be set to three
different operating modes. This microphone includes extra conductors that can be wired to the logic ports
on the Vortex.
Application Note: “Microphone Selections for Polycom Vortex Devices” – 01/2006
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CROWN PCC170SWO
http://www.crownaudio.com/pdf/mics/101793.pdf
A surface-mounted supercardioid microphone with a programmable on/off switch. This microphone
includes extra conductors that can be wired to the logic ports on the Vortex.
SHURE MX392/C
http://www.shure.com/microphones/models/mxboundary.asp
Tabletop boundary style microphone with cardioid pickup pattern. /C stands for cardioid version. Has
unterminated ends – easy to put into mini phoenix connectors. Also has a sprogrammable push to talk
button.
SHURE MX393/C
http://www.shure.com/microphones/models/mxboundary.asp
Similar to MX392 but with mini-XLR connector.
III. Wireless Microphone Options
Many companies manufacture wireless microphone systems. As a resource to help you select a wireless
microphone system, we have provided links to various manufacturers’ websites, again in alphabetical order.
This list is by no means complete, but should give you a good sampling of the systems that are available for
installed room use. Note that a wireless microphone system will normally provide a line level output to
your Vortex product.
You should not use a wireless microphone system if security is an important issue. Wireless microphone
systems operate at radio frequencies, meaning the signal is not restricted to the room contatining the
microphones and can be picked up by someone with a scanner outside the room.
AUDIO-TECHNICA
Information on their wireless microphone products can be found at:
http://www.audio-technica.com
This page contains useful information on selecting wireless systems as well as troubleshooting.
(follow links to Support, then to Using Wireless Systems)
Application Note: “Microphone Selections for Polycom Vortex Devices” – 01/2006
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AZDEN
The following link takes you to Azden Corporation’s wireless microphone products:
http://www.azden.com/proaudio.html
BEHRINGER
This link will take you to Behringer’s diversity wireless microphone system:
http://www.behringer.com/02_products/microphone_index.cfm?lang=ENG#WIRELESS%20MICROPHONE%
20SYSTEMS
SENNHEISER
This page has information on Sennheiser’s wireless microphone products:
http://www.sennheiserusa.com/newsite/category.asp?transid=cat56
S
HURE
For information on a variety of Shure wireless microphone systems and options, follow this link.
http://www.shure.com/wireless/wireless_microphone_options.asp
TELEX
Information on Telex wireless microphone systems can be found here:
http://www.telex.com/WirelessMicrophones/products.nsf/pages/ProductType=Wireless%20Microphones
TOA
For information on Toa’s wireless microphone systems, follow this link:
http://www.toaelectronics.com/mic0000.asp
Application Note: “Microphone Selections for Polycom Vortex Devices” – 01/2006
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IV. Technical Support
For technical support on the Vortex product line, call toll-free (USA/Canada) 888-248-4143, then select
option 1, then option 3.
For exclusive Integrator and Consultant focused support (through our PASS program), dial 1.408.474.2048;
this number will get you help on video and Vortex products.
For general technical support, dial 1.800.POLYCOM
POLYCOM INSTALLED VOICE BUSINESS GROUP CONTACT INFORMATION
Our address is:
9040 Roswell Road
Suite 450
Atlanta, GA 30350
770-350-4140 Phone
770-350-4142 Fax
Copyright © 2006 Polycom, Inc.
Polycom, the Polycom logo, and Vortex are registered trademarks of Polycom, Inc. in the USA and various countries. All other
brand names, product names and trademarks are the sole property of their respective owners. Rev. II 01/06.
Application Note: “Microphone Selections for Polycom Vortex Devices” – 01/2006
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