Conference MIC

If the audio output is connected to equipment with a balanced input circuit that has a separate ground connection, the ground connects to OUTPUT terminal #1. The PZ-2LA can be powered by an external AC or DC source ranging from 8 to 24 volts. This connection should be made to the electronics circuit board at INPUT screw terminals #1 and #2. A balanced audio output is available at OUTPUT screw terminals #2 and #3. The recommended minimum load impedance is 1000 ohms. The PZ-2L is designed for use exclusively with Omnicron CR-1 and CR-4 recorders. It connects directly to the "PZ-MIC-IN" jack on these recorders, which will supply power to the device. If the microphone is mounted to a grounded enclosure, ground loops may occur, resulting in hum. In the presence of hum when the microphone housing is grounded, the resistor labeled GND LIFT on the printed circuit board should be removed. The microphone is factory set to handle sound levels up to 100 dB without excessive distortion. If the sound at the microphone exceeds 100 dB, the plug-in resistor (labeled Gain) should be changed to provide more headroom. Replacing the 1.0K ohm resistor with a 3.9K resistor will offer 12 dB more headroom but will result in a lower output signal from weak sounds. Element: Pressure Zone Electret Condenser. Frequency Response: 80-20,000 Hz. S/N Ratio: 68 dB. Polar Pattern: Hemispherical. Impedance: 75 ohms. Output Level: 1.4 V/Pa (+3 dB re 1 V/Pa). Maximum SPL: 100 dB with 3% THD. Equivalent Noise Level: Less than 26 dB, A-weighted. PZ-2LA Power: supplied by an external 120VAC to 12VDC adapter or 8-24 VAC/DC, 4 mA. PZ-2L Power: supplied by Omnicron VR-1PZ or VR-4PZ recorder. Dimensions: 2" x 3" x 4". Net Weight: 6 oz without cable. Color: Microphone and Cable are Ivory. Warranty: Limited 1 year parts & labor. If the unit fails to work, all connections should be rechecked as described in the Installation Section. Assistance is available from the place of purchase or from Omnicron. If service is required, it should be returned to Omnicron at the provided address. Refer to the warranty statement for details.

The PZ-2LA microphone operates effectively within a specified audio output environment, particularly when interfacing with balanced input circuits. The connection to OUTPUT terminal #1 facilitates grounding, ensuring that the system maintains a stable reference point for audio signals. The versatility of the PZ-2LA is highlighted by its ability to be powered by an external AC or DC source, with a voltage range of 8 to 24 volts, which can be connected to the designated INPUT screw terminals. This design allows for flexibility in various audio setups.

The microphone's balanced audio output is accessible via OUTPUT screw terminals #2 and #3, making it compatible with a variety of audio equipment. The specification of a minimum load impedance of 1000 ohms is crucial for optimal performance, preventing signal degradation and ensuring clear audio transmission. The PZ-2L version is specifically tailored for use with Omnicron CR-1 and CR-4 recorders, establishing a direct connection to the "PZ-MIC-IN" jack, which eliminates the need for an external power source as the recorder provides the necessary power.

To mitigate potential issues such as ground loops, which can introduce unwanted hum into the audio signal, careful attention must be paid to the microphone's grounding configuration, especially when mounted in grounded enclosures. The GND LIFT resistor serves as a useful adjustment to eliminate hum when necessary.

The microphone's design accommodates sound levels up to 100 dB without significant distortion, making it suitable for various recording environments. For scenarios where sound levels may exceed this threshold, users can modify the gain settings by replacing the existing resistor, thereby enhancing the microphone's headroom.

The technical specifications provide further insight into the microphone's capabilities, including its frequency response range, signal-to-noise ratio, polar pattern, and output characteristics. These parameters are essential for users to understand the performance and application of the microphone in professional audio settings.

Overall, the PZ-2LA and PZ-2L microphones are engineered for reliability and high-quality audio capture, supported by a one-year warranty that ensures customer satisfaction and product longevity.If the audio output is connected to equipment that has a balanced input circuit with a separate ground connection, the ground connects to OUTPUT terminal # 1. The PZ-2LA can also be powered by an external AC or DC source between 8 and 24 volts. Connect it to the electronics circuit board at INPUT screw terminals # 1 and # 2. A balanced audio output is available at OUTPUT screw terminals # 2 and # 3. The recommended minimum load impedance is 1000 ohms. The PZ-2L is wired for use only with Omnicron CR-1 and CR-4 recorders. The PZ-2L plugs direct into the "PZ-MIC-IN" jack on the CR-1 and CR-4 recorders. It will be powered by the recorder. If the microphone is mounted to a grounded enclosure, ground loops could occur that would cause hum. If hum is present when the microphone housing is connected to ground, remove the resistor labeled GND LIFT on the printed circuit board. The microphone is factory set to handle sound levels up to 100 dB without excessive distortion. If the sound at the mic will exceed 100 dB, change the plug-in resistor (labeled Gain) for more headroom.

Removing the 1. 0K ohm resistor and replacing it with a 3. 9K resistor will provide 12 dB more headroom with a corresponding lower output signal from weak sounds. Element: Pressure Zone Electret Condenser l Frequency Response: 80-20, 000 Hz l S/N Ratio: 68 dB l Polar Pattern: Hemispherical l Impedance: 75 ohms l Output Level: 1.

4 V/Pa (+3 dB re 1 V/Pa) l Maximum SPL: 100 dB 3% THD l Equivalent Noise Level: Less than 26 dB, A weighted l PZ-2LA Power: supplied by an external 120VAC to 12VDC adapter, or 8-24 VAC/DC, 4 ma l PZ-2L Power: supplied by Omnicron VR-1PZ or VR-4PZ recorder l Dimensions: 2" x 3" x 4 " l Net Weight: 6 oz without cable l Color: Microphone and Cable are Ivory l Warranty: Limited 1 year parts & labor. If the unit fails to work, recheck all your connections as described in the Installation Section. Assistance is also available from your place of purchase or from Omnicron. If service is required, return it to Omnicron at the address shown below. Please refer to the warranty statement for warranty details. 🔗 External reference