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Electro-Voice PC Boundary Specification Sheet

Polarchoice series multi-pattern boundary microphone

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Key Features:
Selectable polar pattern to easily adapt
to different acoustic environments.
Choose between omni, cardioid,
supercardioid or figure 8.
Exceptional sound quality with EV's
proven PolarChoice design.
Consistent microphone voicing across
all four patterns.
Easy to use mute switch. Can be
programmed to operate as either latching
on/off or momentary push-to-mute /
push-to-talk.
Disassembly of the mic isn't required to
change switch functions or for use with
automatic mixers.
Compatible with echo cancellation for
conference applications.
High visibility blue LED clearly displays
mic status to the user and can be
remotely controlled in automatic mixer
mode.

General Description:

The PC Boundary mic is a low profile microphone that can be used with standard and automatic mic mixers. The PC
Boundary mic is a member of the EV PolarChoice™ series of multi-pattern microphones. The multi-pattern versatility
of the PolarChoice™ microphone makes it a true "problem solver". With one non-directional and three directional
polar patterns available, PolarChoice™ microphones are ideal for virtually any installation. Of particular interest is the
figure 8 pattern that allows miking people on opposite sides of a table with only one microphone, while providing a
dramatic reduction of ambient room noise.
The PC Boundary mic features a large soft-touch mute button. The mute button can be configured for push-on /
pushoff, push-to-talk, or push-to-mute functions. Mute switch programming is easily accomplished without
disassembling the microphone. The microphone can also be programmed to be either live or muted when power is
initially applied (when in toggle mode). Additionally, a switch on the bottom of the mic, quickly converts the PC
Boundary to automatic mixer mode. In this mode, audio is always on.
A large blue LED indicator lights when the mic is active, and can be remotely controlled when the mic is in automatic
mixer mode.
The PC Boundary mic is designed to take acoustic advantage of placing a microphone close to a "boundary" such as
conference table. Advantages include reduced phase cancellation and up to 3dB reduction in ambient noise.
The PC Boundary mic also includes a switchable high pass filter and a high-performance vibration-damping pad on
the bottom to greatly reduce any vibration induced noise pick-up.
PolarChoice Series:
PC Boundary
Multi-Pattern
Boundary Microphone

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Summary of Contents for Electro-Voice PC Boundary

  • Page 1: General Description

    General Description: The PC Boundary mic is a low profile microphone that can be used with standard and automatic mic mixers. The PC Boundary mic is a member of the EV PolarChoice™ series of multi-pattern microphones. The multi-pattern versatility of the PolarChoice™...
  • Page 2 Orange – LED Control If the PC Boundary mic is in momentary mode (see above section on the mute switch), the logic level on the white wire will normally be “high”, and go “low” when the mute button is pressed. If the mute switch is set for toggle mode, the logic will toggle from high to low, or from low to high, each time the button is pressed.
  • Page 3 The PC Boundary is acoustically designed for high-quality sound reinforcement and broadcast applications. The frequency response is tailored for wide-range sound reproduction with very natural sound pick-up. The PC Boundary microphone’s three directional polar patterns allow the user to pick the directional polar pattern for optimum effect. For those applications where gain-before-feedback is not a problem, an omnidirectional pattern is included.
  • Page 4: Frequency Response

    LED and top push button functions are disabled. In automatic mixer mode, audio will always be on, the top push button will only change the logic level on the microphone’s white wire, and a logic low level on the microphone’s orange wire will cause the LED to illuminate.