User manual ELECTRO-VOICE POLARCHOICE DESKTOP EDS

[. . . ] The multi-pattern versatility of the PolarChoice microphone makes it a true problem solver. With one nondirectional and 3 directional polar patterns available, the PolarChoice microphone is ideal for virtually any installation. The PC Desktop also includes a switchable high pass filter that helps reduce any vibration induced noise pickup. [. . . ] With switch C in the right hand position, the setting of switch D determines if the mic audio should be muted when power is first applied. If switch D is in the left hand position, the mic audio will be muted when power is first applied. If switch D is in the right hand position, mic audio will be on when power is first applied. ) Switch E (Logic Mode Select) - When switch E is set in the left hand position, the PC Desktop operates as a normal desk microphone. Mic muting and operation of the LED is controlled by the push-button on the top of the mic. With switch E in the right hand position, the mic will be in automatic mixer mode, and the following will apply: 1) Mic audio is always on. 2) The automatic mixer controls LED operation and mic muting. Wiring - For non-automatic mixer applications, the PC Desktop comes equipped with a standard XLR style 3-pin male connector. For automatic mixer applications, remove the XLR connector and service the cable as needed. Cable Connections Red Balanced Audio High Black Balanced Audio Low Shield Audio Ground Green Logic Ground (Common to shield unless R45 is removed. See Figure 3. ) White Switch Logic Orange LED Control Logic Signals - If the PC desktop 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 push-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. (If desired, a pc board change can be done to force the logic to always be momentary, regardless of switch settings. LED Control - When the mic is in automatic mixer mode, a low logic signal on the orange LED control wire will cause the LED to light. Logic Ground Lift - If necessary, the logic and audio grounds can be separated. This requires removing a resistor from the pc board. See Figure 3. Engineering Data Sheet Technical Specifications: EV Multi-Port Windscreen: Generation Element: All PolarChoice microphones come with the exclusive EV Dual condenser, back electret Multi-Port Windscreen. This unique one-piece ported design Frequency Response: offers greatly improved resistance to P-popping noise by 50 Hz to 20, 000 Hz (see chart) Polar Patterns: (see chart) creating a two-stage filter that has an air space between the Omnidirectional stages. This makes the multi-port windscreen as effective Cardioid as much larger traditional designs. [. . . ] The microphone will include an external windscreen. The microphone shall have a nonreflecting black finish. The Electro-Voice PolarChoiceTM PC Desktop-5, PC Desktop-12, or PC Desktop-18 is specified. Ordering Information Model No. [. . . ]