Bogen NQ-GA20P2 Configuration Manual
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Bogen NQ-GA20P2 Configuration Manual

Integrated power amplifier
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Integrated Power Amplifier
Configuration Guide
NQ-GA20P2
© 2021 Bogen Communications, Inc.
All rights reserved.
740-00074A
211116

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Summary of Contents for Bogen NQ-GA20P2

  • Page 1 Integrated Power Amplifier Configuration Guide NQ-GA20P2 © 2021 Bogen Communications, Inc. All rights reserved. 740-00074A 211116...

  • Page 2: Table Of Contents

    Contents Configuring the Nyquist Integrated Power Amplifier ......1 Using the Dashboard ............2 Standalone Operation .
  • Page 3 NQ-GA20P2 Dashboard ........
  • Page 4 List of Tables Table 1. Appliance Dashboard Fields......... . .3 Table 2.

  • Page 5: Configuring The Nyquist Integrated Power Amplifier

    It also works in background music applications, leveraging the exhaustive audio manage- ment and distribution capabilities of Bogen’s Nyquist platform. The NQ-GA20P2 appliance uses the latest in Class D amplifier technology and provides unparalleled sonic quality, exceptional reliability, and reduced power consumption to permit standalone PoE+ operation over the local network.

  • Page 6: Using The Dashboard

    Figure 1. Nyquist Appliance Login At the Nyquist Appliance Login page, enter username and password, and then select Login. The dashboard for the selected appliance appears. Figure 2. NQ-GA20P2 Dashboard Using the Dashboard The dashboard displays the following fields:...

  • Page 7: Table 1. Appliance Dashboard Fields

    Table 1. Appliance Dashboard Fields Device Type Identifies the model of this device. Serial Number Identifies the serial number for the device. MAC Address Specifies the Media Access Control (MAC) address, which is a unique identifier assigned to network inter- faces for communications on the physical network seg- ment.

  • Page 8: Standalone Operation

    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 ability to provide paging, multi-channel audio processing, and a SIP endpoint for a PBX/ VoIP phone system.

  • Page 9: Figure 3. Firmware Update Page

    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 10: Network Settings Tab Parameters

    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 11: Figure 4. Network Settings

    Select your desired network settings. Select Save. Figure 4. Network Settings Network settings are described in the following table: Table 4. Network Settings IP Address Identifies the IP address assigned to the appliance. Netmask Identifies the subnetwork subdivision of an IP net- work.
  • Page 12 Table 4. Network Settings (Continued) NTP Server Identifies the IP address or the domain name of the Network Time Protocol (NTP) Server. Note: This field is only editable when Standalone Operation is enabled. TFTP Server Identifies the host name or IP address of the Trivial File Transfer Protocol (TFTP) server.

  • Page 13: Configuration Settings Tab Parameters

    Table 4. Network Settings (Continued) DHCP Enabled Indicates if the device is enabled to use DHCP to retrieve its IP configuration. Reboot Appliance Indicates that this appliance should reboot when the Save button is clicked. Configuration Settings Tab Parameters The way to configure this Nyquist appliance is to obtain configuration settings from the Nyquist server by selecting Get Configuration From Server.

  • Page 14: Table 5. Configuration Settings (Standalone Disabled)

    The following table describes the Configuration Settings tab settings when Standalone Operation is not enabled for this device: Table 5. Configuration Settings (Standalone disabled) Web Username Provide a web username for this appliance. Emergency-All-Call Identifies the IP address, port number, cut level (vol- ume), and station list used for emergency all-call pages.

  • Page 15: Standalone Operation Configuration Settings

    Standalone Operation Configuration Settings Figure 6. Appliance Configuration Settings (Standalone enabled) The following table describes the Configuration Settings tab settings when Standalone Operation is enabled for this device: Table 6. Configuration Settings (Standalone enabled) Device Type Displays the type of this device. Device Name Provides a name for this device.

  • Page 16: Table 6. Configuration Settings (Standalone Enabled)

    Table 6. Configuration Settings (Standalone enabled) Web Password Specifies a web password for logging into the appliance. Web Confirm Password Re-enter the password used to log into the appliance. Time Zone Specifies the time zone in which the device resides. Enable SIP Calls Enables this device to receive one-way SIP calls, wherein only the caller can be heard (such as announcements).
  • Page 17 Codec Specifies the codec to be used when decoding audio. Select one of the following values: • G711 u-law • Intercom call 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 18: Accessing Log Files

    Note: A maximum of 24 multicast entries is supported. Multicast Addresses should be ordered by priority, highest priority first. If multiple streams are active on the same channel simultaneously, the one with the highest prior- ity will be played. Set the Sorting switch to Enabled and drag entries using the 4-way arrow symbols to drag entries up and down to rearrange the priorities.

  • Page 19: Figure 7. Logs

    Figure 7. Logs Available logs are described in the following table. If a log file is empty, however, it will not appear in the drop-down list of available logs. Table 7. Logs Description ampws.log Contains information about protection status and logs protection events with temperature information at the time of event.

  • Page 20: Setting Dsp Parameters

    Table 7. Logs (Continued) Description kern.log Contains information logged by the kernel and recent login information for all users. lastlog Contains information on the last login of each user. messages Contains messages generated by Nyquist. php5-fpm.log Contains errors generated by the PHP script. syslog Contains list of errors that occur when the server is run- ning and server start and stop records...

  • Page 21: Figure 8. Dsp Page With Channel Drop-Down Menu

    Figure 8. DSP Page with Channel Drop-Down Menu From this page, you can adjust settings in the DSP. The appliance uses traditional proces- sors (for example, Compressor, Limiter) for audio signals in the digital domain. The DSP page shows Mute and Level selections for the input channel and allows you to adjust the channel input level.
  • Page 22 Table 8. DSP Page DSP Features button Presents a menu of DSP features that can be applied to the corresponding channel. Level Slider Adjusts the channel volume level in 1-dB increments. Signal LED Illuminates when a signal is present. IN VU meter Indicates the strength of the analog input signal.

  • Page 23: Setting The Channel Level

    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. The Channel Levels can range from -60 to 12 dB. If you place the mouse over the slider, the numerical value of the level appears. Adjusting Volume Levels The vertical slider control can be used to adjust the channel’s output level in 1-dB incre- ments between -60 and +12 dB.

  • Page 24: Muting A Channel

    The “IN” VU meter indicates the strength of the channel’s input signal (after gain adjust- ments), while the “OUT” VU meter indicates the strength of the channel’s output signal. The VU meter not only illuminates green, yellow, or red (depending on the signal level), but also has a scale ranging from -60 to 0 dB to indicate the actual signal level.

  • Page 25: Table 10. Compressor Settings

    Select the Menu button for the channel. From the drop-down menu, select Compressor. Make desired adjustments using the controls described in Table 10, “Compressor Set- tings,” on page 21. Note: If you want to return to the factory settings, select the Reset icon that appears in the right corner.

  • Page 26: Setting High Pass/Low Pass Parameters

    Table 10. Compressor Settings Knee Sets how far below the threshold compression will begin to be gradually applied to the signal. A very low value, known as a hard knee, immediately applies full compres- sion once the threshold is reached. A high value, known as a soft knee, will gradually start applying compression before the signal reaches the threshold, not reaching the full effect until the threshold is reached, thereby...

  • Page 27: Figure 10. High/Low Pass Parameters

    Figure 10. High/Low Pass Parameters To adjust the high/low pass parameters for a channel: On the appliance Web UI’s main page, select DSP. Select the Menu button for the channel. From the drop-down menu, select High/Low Pass. Note: If you want to return to the factory settings, select the Reset icon that appears in the right corner.

  • Page 28: Table 11. High/Low Pass Parameters

    Table 11. 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 29: Adjusting The Limiter

    Table 11. 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 30: Figure 11. Limiter Settings

    Figure 11. Limiter Settings To adjust the limiter settings for a channel: On the appliance Web UI’s main page, select DSP. Select the Menu button for the channel or select the Menu button for the Output. From the drop-down menu, select Limiter. Note: If you want to return to the factory settings, select the Reset icon that appears in...

  • Page 31: Adjusting Outputs

    Table 12. Limiter Settings Threshold Sets the signal level at which the limiter is triggered. Any signal exceeding this threshold will be compressed to this level. The range is -24 to +24 dB. Decay Sets the rate for turn off of the limiter after the signal is below the threshold.

  • Page 32: Adjusting Parametric Equalizer Settings

    On the appliance Web UI’s main page, select DSP. Select the Menu button. From the drop-down menu, select Outputs. To enable outputs for a speaker or line, select Enable for the corresponding output. Make desired Volume adjustments by adjusting the knob. Volume levels range from 0 to 15 dB for the Speaker Output and -15 to 15 dB for the Line Output.
  • Page 33 Note: If you want to return to the factory settings, select the Reset icon that appears in the right corner. 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 double- clicking the knob and typing the frequency.

  • Page 34: Settings

    Settings You can set select a name and a color for the input channel. Figure 14. Settings Parameters To adjust the settings for the channel: On the appliance Web UI’s main page, select DSP. Select the Menu button for the channel. From the drop-down menu, select Settings.

  • 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. Figure 15. Signal Present Parameters To adjust the Signal Present settings for a channel: On the appliance Web UI’s main page, select DSP.

  • Page 36: Table 13. Signal Present Parameters

    Adjust the following settings as needed. Table 13. Signal Present Parameters Threshold Sets the minimum level the signal must reach before the signal LED is illuminated. Threshold range is -144 to +24 dB. Hold Sets the minimum number of milliseconds that the signal LED will remain illuminated.

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