Bogen NQ-PA120 Configuration Manual
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Bogen NQ-PA120 Configuration Manual

Public address mixer/amplifiers
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Public Address Mixer/Amplifiers
Configuration Guide
NQ-PA120, NQ-PA240, NQ-PA600
© 2021 Bogen Communications, Inc.
All rights reserved.
740-00122A
211115

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Summary of Contents for Bogen NQ-PA120

  • Page 1 Public Address Mixer/Amplifiers Configuration Guide NQ-PA120, NQ-PA240, NQ-PA600 © 2021 Bogen Communications, Inc. All rights reserved. 740-00122A 211115...

  • Page 2: Table Of Contents

    Contents Contents ............. . i Configuring the Nyquist Public Address Mixer/Amplifiers .

  • Page 3: Configuring The Nyquist Public Address Mixer/Amplifiers

    (DSP)–based integrated mixer and power amplifiers designed for paging and public address applications. Available in 120-, 240-, and 600-watt models (NQ-PA120, NQ-PA240, and NQ-PA600), the Public Address Amplifiers enable microphone-level and line-level source inputs to be integrated into the Nyquist system.

  • Page 4: Using The Dashboard

    See also: • "Using the Dashboard” on page 2 • "Updating Firmware” on page 4 • "Network Settings Tab Parameters” on page 6 • "Configuration Settings Tab Parameters” on page 8 • "Accessing Log Files” on page 13 • "Setting DSP Parameters” on page 15 Using the Dashboard The dashboard displays the following fields: Table 1.

  • Page 5: Standalone Operation

    • Store backup information to Nyquist server • Allow access to Nyquist server-based NTP Standalone Operation mode is ideal for scenarios that do not require the full functionality provided by an integrated system, such as the Bogen C4000 or E7000 Series, but has the...

  • Page 6: Updating Firmware

    Check for Updates button checks the Bogen website for the latest firmware version available. If a version newer than the one currently installed is found, it is downloaded to the appliance. If you already have a firmware file you would like to install to the appliance, select Upload Firmware to upload the firmware file from your computer to the appliance.
  • Page 7 Check for Updates Available only when the appliance is configured for Standalone mode. Checks the Bogen website for the latest firmware version available and, if it finds a version newer than what is currently installed, downloads it to the appliance.

  • Page 8: Network Settings Tab Parameters

    Network Settings Tab Parameters Network settings can be configured dynamically by the Nyquist server or manually by using the appliance’s web UI. To manually configure network settings: On the appliance web UI’s main page, select Network Settings. Select your desired network settings. Select Save.
  • Page 9 Table 4. Network Settings (Continued) TFTP Server Identifies the host name or IP address of the Trivial File Transfer Protocol (TFTP) server. The specified TFTP server can be used to automati- cally set this device’s Configuration settings via the Get Configuration from Server button. If TFTP Server from DHCP (see below) is set to “Yes”, this value will be auto-configured via DHCP option 66, assuming the DHCP server has been configured...

  • Page 10: Configuration Settings Tab Parameters

    See also: • "Configuring the Nyquist Public Address Mixer/Amplifiers” on page 1 • "Updating Firmware” on page 4 • "Using the Dashboard” on page 2 • "Configuration Settings Tab Parameters” on page 8 • "Accessing Log Files” on page 13 •...

  • Page 11: Standalone Operation Configuration Settings

    Table 5. Configuration Settings (Standalone disabled) (Continued) All-Call Identifies the IP address, port number, cut level (vol- ume), and station list used for all-call pages. Audio Distribution Identifies the IP address, port number, cut level (vol- ume), and station list used for audio distribution. Multicast # Identifies the IP address, port number, cut level (vol- ume), and station list used for the multicast audio...
  • Page 12 Table 6. Configuration Settings (Standalone enabled) Prioritize Line Input If a channel simultaneously receives input signals from both a network input and a line input, “Yes” means the line input is used, “No” means the network input is used. Yes or No PTT Output Specify the output port to which the PTT microphone sig- nal (from line input 4) will be sent.
  • Page 13 Table 6. Configuration Settings (Standalone enabled) SIP Password Specify the SIP registration password used to register the Line Out or Speaker Out channel with the SIP server. (Line Out/Speaker Out) Cut Level Specify the intercom volume to be used for SIP calls over Line Out or Speaker Out.
  • Page 14 Codec The codec to be used when decoding audio. Select one of the following values: • G711 u-law • Intercom quality • A narrowband audio codec that provides toll-qual- ity audio at 64 kbps. The u-law version is primarily used in North America and Japan. •...

  • Page 15: Accessing Log Files

    Note: Multicast Addresses should be ordered by priority, highest priority first. If multi- ple streams are active simultaneously, the one with the highest priority will be played. Note: A maximum of 24 multicast entries is supported. See also: • "Configuring the Nyquist Public Address Mixer/Amplifiers” on page 1 •...
  • Page 16 Table 7. Logs Description ampws.log Contains information about protection status and logs protection events with temperature information at the time of event. auth.log Contains system authorization information, including user logins and authentication methods that were used. btmp Contains information about failed login attempts. daemon.log Contains information logged by the various back- ground daemons that run on the system.

  • Page 17: Setting Dsp Parameters

    See also: • "Configuring the Nyquist Public Address Mixer/Amplifiers” on page 1 • "Using the Dashboard” on page 2 • "Updating Firmware” on page 4 • "Network Settings Tab Parameters” on page 6 • "Configuration Settings Tab Parameters” on page 8 •...
  • Page 18 cessed signal from each channel is then routed to the Line Out and/or Speaker Out chan- nel according to the DSP Router configuration (see"Router” on page 31). The digital output of all channels that are routed to the Line Out and Speaker Out are dig- itally merged, processed according to the output channel’s DSP settings, and ultimately converted to an analog signal and sent to the output connectors.
  • Page 19 The various mixer controls, as well as the DSP features available via the DSP Features menu, are briefly described in the following table and will be discussed in more detail in subsequent sections. Note: The DSP page (including the mixing board and other DSP pages) can only be used by one browser session at a time.
  • Page 20 Table 9, DSP Features Compressor Lessens the dynamic range between the loudest and qui- etest parts of an audio signal. Ducker Lowers, or ducks, the output of a channel when another signal is encountered. Graphic EQ Uses fixed frequencies to tailor the frequency content of an audio signal.

  • Page 21: Setting The Channel Level

    See also: • "Selecting Input Type, Input Gain, and Phantom Power” on page 20 • "Signal Indicators” on page 19 • "Muting a Channel” on page 20 • "Adjusting Volume Levels” on page 19 Setting the Channel Level The Channel Level control is a vertical slider that is adjusted in 1-dB increments and con- trols the output level for the channel.

  • Page 22: Muting A Channel

    The green input signal LED(s) automatically illuminates when a signal is being received. The red Clip LED automatically illuminates when the signal is clipping (i.e., exceeding a predefined threshold). Clipping can result in distortion and, for output signals, can even damage speakers.

  • Page 23: Troubleshooting Gain Structure

    If you select Mic as the input, you can specify whether or not the microphone will use phantom power. Phantom power is electrical power that is sent to a condenser mic through its mic cable. Note: Phantom power is only used by devices that contain active electronics, such as con- denser microphones and many direct boxes.

  • Page 24: Compressor

    If Channel Volume Is Too Low If the channel slider volume control must be set above the +6 dB position to provide ade- quate volume, the Input Gain setting is too low. Set the channel level slider to 0, turn the Input Gain knob to the 1 o'clock position, and increase the Input Gain by turning knob clockwise until clipping occurs or the VU meter’s signal level is between −10 dB and −3 dB.
  • Page 25 Note: If you want to return to the factory settings, select the Reset icon that appears in the right corner. Select Enable to apply the settings to the selected channel. Table 10. Compressor Settings Enable Enables or disables the compressor DSP effect for this channel.

  • Page 26: Ducker

    Table 10. Compressor Settings Ratio Sets the compression ratio to be applied to the signal. For example, if the ratio is set for 6 (6:1), the input signal must increase by 6 dB for the output level to increase by 1 dB.

  • Page 27: Graphic Eq

    Table 11. Ducker Parameters Threshold Sets the threshold level, or how loud the signal has to be, before ducking is enabled. The range is -135 to +20 dB. Hold Sets how long the master continues to duck the signal after the signal is below the threshold. The range is 1 to 500ms.

  • Page 28: High/Low Pass

    Note: If you want to return to the factory settings, select the Reset icon that appears in the right corner. High/Low Pass High-pass filters allow signals that are higher than the specified frequency and attenuate signals that are lower. Low-pass filters allow signals that are lower than the specified fre- quency and attenuate signals that are higher.
  • Page 29 Table 12. High/Low Pass Parameters High-Pass (Low Cut) This feature helps eliminate low-frequency noise (signals of 100 Hz and below, such as background rumble from ventilation systems, etc.) and is used primarily with micro- phone-level input. It is particularly effective when handheld microphones are used. Frequency Set the cutoff frequency.

  • Page 30: Limiter

    Table 12. High/Low Pass Parameters (Continued) Low-Pass (High Cut) This feature helps eliminate high-frequency noise (signals of 8000 Hz and above) such as background hiss and sibilance (excessive "S" in vocals, etc.) and is used primarily with microphone-level input. It is particularly effective when handheld microphones are used.

  • Page 31: Noise Gate

    From the drop-down menu, select Limiter. Note: If you want to return to the factory settings, select the Reset icon that appears in the right corner. Adjust the following settings as needed: Table 13. Limiter Settings Threshold Sets the signal level at which the limiter is triggered. Any signal exceeding this threshold will be compressed to this level.

  • Page 32: Parametric Eq

    Table 14. Noise Gate Settings Enable Enables or disables the noise gate DSP effect for this chan- nel. Threshold Sets the minimum threshold level that the signal must reach for the noise gate to “open,” allowing the signal to be sent to the output channel. Threshold range is -135 to +21 dB.

  • Page 33: Router

    Adjust frequencies as desired, ensuring the Enable LEDs are green for each selected frequency. You can adjust the frequencies by moving the Freq knob or by dou- ble-clicking the knob and typing the frequency. When typing the frequency, only numeric values from 20 to 20,000 can be entered. Make desired adjustments by adjusting knob (or double-clicking and typing the desired adjustment).

  • Page 34: Settings

    From the drop-down menu, select Router. Note: If you want to return to the factory settings, select the Reset icon that appears in the right corner. Adjust the input, output, and cross gain settings as desired. To route a signal to a specific output, select the Input's Enable button so that it changes from gray to green.

  • Page 35: Signal Present

    Signal Present You can configure the threshold level that a signal must reach before the signal LED is lit, as well as how long the LED will remain lit. You can configure this for each channel. To adjust the Signal Present settings for a channel: On the appliance Web UI’s main page, select DSP.
  • Page 36 Table 16. Status Thermal Protect Appears red if the output channel is being overloaded or there is an external short and the amplifier has placed itself into protection mode to prevent permanent damage. Otherwise, the LED is green. Output Limit Appears red if the output signal is being clipped or dis- torted.

This manual is also suitable for:

Nq-pa240Nq-pa600Nyquist nq-pa120Nyquist nq-pa240Nyquist nq-pa600

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