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4-Channel Audio Power Amplifiers

Configuration Manual

NQ-A4060, NQ-A4120, NQ-A4300

2019 Bogen Communications, Inc.

740-00099D

191101

Содержание NYQUIST NQ-A4060

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Страница 3: ...SP Parameters 13 6 1 Setting the Channel Level 15 6 2 Signal LED Clip LED and VU Meter 15 6 3 Muting a Channel 16 6 4 Adjusting Volume Levels 16 6 5 Adjusting Compression Settings 16 6 6 Adjusting the Graphic Equalizer 18 6 7 Setting High Low Pass Parameters 20 6 8 Adjusting the Limiter 23 6 9 Adjusting Noise Gate Settings 24 6 10 Adjusting Parametric Equalizer Settings 25 6 11 Adjusting Router Se...

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Страница 5: ...9 Graphic EQ Settings 18 Figure 10 High Low Pass Parameters 20 Figure 11 Limiter Settings 23 Figure 12 Noise Gate Settings 24 Figure 13 Parametric Equalizer Settings 25 Figure 14 Router 27 Figure 15 Router for Single Channel Bridged Mode and 2 Mono Mode Channels 28 Figure 16 Settings Parameters for 2 Channel Mono 29 Figure 17 Settings Parameters for 2 Single Channel Bridged 29 Figure 18 Signal Pre...

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Страница 7: ...Network Settings 7 Table 4 Configuration Settings 9 Table 5 Device Stations Settings 10 Table 6 Logs 12 Table 7 DSP Page 14 Table 8 Compressor Settings 17 Table 9 High Pass Low Pass Parameters 21 Table 10 Limiter Settings 23 Table 11 Noise Gate Settings 25 Table 12 Signal Present Parameters 31 Table 13 Status 33 ...

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Страница 9: ...set button reboots the device If you press the Reset button for 10 seconds the appliance returns to the factory default configuration settings Returning to the default configuration settings does not change the appliance s firmware The following sections describe the process for manual configuration For information about using Nyquist s automatic configuration pro cess refer to the Nyquist System ...

Страница 10: ...in page enter username and password and then select Login The default username is admin the default password is bogen The dashboard for the selected appliance appears Figure 1 Nyquist Appliance Login Figure 2 Matrix Mixer Pre Amp Dashboard ...

Страница 11: ...ons Dashboard Refreshes the dashboard Configuration Set tings Accesses the Configuration Settings page where you can either manually set various options such as the SIP Username or select to receive configuration settings from the server Network Settings Accesses the Network Settings page where you can view and set network settings such as the static IP address Firmware Update Accesses the Firmwar...

Страница 12: ... help Manual Displays the appliance s configuration manual Logout Logs out of the appliance s dashboard Table 2 Appliance Dashboard Buttons Note A Nyquist appliance connected to the Nyquist network receives a configuration file from the Nyquist server that includes the latest firmware available from the server If the firmware is later than the one installed on the appliance an automatic firmware u...

Страница 13: ... file that you want to upload You can navigate to the file s location After you select the file select Upload If Nyquist discovers a new firm ware version the Firmware Update page displays an Update Firmware button Select this button if you want to update the appliance s firmware to the new version Step 3 If you want to return your appliance to its original state undoing firmware updates select Re...

Страница 14: ...dynamically by the Nyquist server or manually by using the appliance s web UI To manually configure network settings Step 1 On the appliance web UI s main page select Network Settings Step 2 Select your desired network settings Step 3 Select Save Figure 4 Network Settings ...

Страница 15: ...address or the domain name of the Network Time Protocol NTP Server This field is read only TFTP Server Identifies the IP address of the Trivial File Transfer Protocol TFTP server TFTP is used by Nyquist VoIP phone and appli ance provisioning A TFTP server runs on the Nyquist server on port 69 the stan dard TFTP port Device provisioning files are stored on the Nyquist server in directory srv tftp T...

Страница 16: ...I To manually configure your Nyquist appliance Step 1 On the appliance Web UI s main page select Configu ration Settings Step 2 Select your desired settings Step 3 Select Save DHCP Enabled Indicates if the device is enabled to use DHCP Reboot Appliance Allows you to save the network options and reboot the appliance Table 3 Network Settings Continued Note Manual configuration will be overwritten by...

Страница 17: ... Configuration Settings Web Username Provide a web username for this appli ance Web Password Provide a web password for logging into the appliance Web Confirm Pass word Re enter the password used to log into the appliance Server Identifies the IP address of the Nyquist server Local Port Identifies the local port ...

Страница 18: ...ess port number and volume used for all calls pages Audio Distribution Identifies the IP address port number and volume used for audio distribution Multicast Identifies the multicast IP address for a zone that the speaker is included in If a speaker is added to multiple zones the multicast IP address for each zone appears Table 5 Device Stations Settings Port Number Identifies the port number of t...

Страница 19: ... drop down menu select the log that you want to view Multiple versions of the same log and zipped copies of the log may be available Step 3 To export the file select Export A link to a txt file appears in the screen s lower left Available logs are described in the following table Figure 6 Logs ...

Страница 20: ...d debug information dmesg Contains kernel ring buffer information When the sys tem boots up the screen displays information about the hardware devices that the kernel detects during the boot process These messages are available in the ker nel ring buffer and whenever a new message comes the old message gets overwritten dpkg log Contains information that is logged when a package is installed or rem...

Страница 21: ...al record of users logins at which ter minals logouts system events and current status of the system and system boot time wvdialconf log Contains basic information about the modem port speed init string and Internet Service Provider ISP Table 6 Logs Continued Log Description Figure 7 DSP Page with Channel Drop Down Menu ...

Страница 22: ...each channel Set the channel level for the four analog input one network input and one analog output channels Selecting the Menu button for a channel number displays a menu of other parameters Some of these parameters affect all channels in which case a channel number does not appear on the top of the graphic If a parameter affects only the selected channel a channel number appears on the selected...

Страница 23: ...cur rent beyond its maximum capability Clipping will distort the sound and can damage a speaker 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 to help you indicate the actual signal level Noise Gate Eliminates low level hiss noise or leakage particularly when there is a high level of ambient noise Parametric EQ Uses a c...

Страница 24: ...usts the channel volume level in 1 dB increments The level can be set at a maximum ob 12 dB to a minimum of 60 dB To adjust the channel volume level Step 1 On the appliance Web UI s main page select DSP Step 2 Use the slider for the channel s Level row to adjust the level 6 5 Adjusting Compression Settings A compressor slightly reduces the dynamic range of a signal This effect is perceived to quie...

Страница 25: ...he selected channel Figure 8 Compressor Settings Note If you want to return to the factory settings select the Reset icon that appears in the right corner Table 8 Compressor Settings Threshold Sets the threshold level which is the point where the signal activates the compressor circuit The range is 135 to 21 dB Attack Sets how fast the compressor turns on when the audio signal passes the threshold...

Страница 26: ...urn off of the compressor after the signal is below the threshold he range is 0 to 2000 ms Knee Sets how the compressor reacts to signals once the threshold is reached Increasing the knee level decreases the obvious tran sition from the uncompressed to the com pressed sound The range is 1 to 100 Ratio Sets the compression ratio For example if the ration is set for 6 6 1 the input signal must cross...

Страница 27: ...range from 25 Hz to 20 000 20k Hz By default each knob is set at 0 dB which means that no frequencies are being boosted or cut Step 4 Adjust frequencies as desired ensuring the Enable LEDs are green for the selected frequencies Note For the best results frequencies should be cut only Boost ing frequencies to compensate for room dimensions or speaker response deficiencies usually results in a loss ...

Страница 28: ...own menu option To adjust the high low pass parameters for a channel Step 1 On the appliance Web UI s main page select DSP Step 2 Select the Menu button for the channel Step 3 From the drop down menu select High Low Pass Step 4 Set the parameters described in the following table Figure 10 High Low Pass Parameters Note If you want to return to the factory settings select the Reset icon that appears...

Страница 29: ...y You can adjust the frequencies by moving the knob or by dou ble clicking the knob and typing the fre quency When typing the frequency only numeric values from 20 Hz to 20 000 Hz can be entered The high pass filter attenuates content below this frequency and lets frequencies above this cutoff frequency to pass through the fil ter Type Available filter types are Linkwitz Riley 12 24 and 36 dB per ...

Страница 30: ...larly effective when hand held microphones are used Frequency Set the cutoff frequency You can adjust the frequencies by moving the knob or by dou ble clicking the knob and typing the fre quency When typing the frequency only numeric values from 20 to 20 000 can be entered The low pass filter attenuates content above this frequency and lets frequencies below this cutoff level to pass through the f...

Страница 31: ...ep 1 On the appliance Web UI s main page select DSP Step 2 Select the Menu button for the channel or select the Menu button for the Output Step 3 From the drop down menu select Limiter Step 4 Adjust the following settings as needed Figure 11 Limiter Settings Note If you want to return to the factory settings select the Reset icon that appears in the right corner Table 10 Limiter Settings Threshold...

Страница 32: ...elect the Menu button for the channel Step 3 From the drop down menu select Noise Gate Decay Sets the rate for turn off of the limiter after the signal is below the threshold Decay range is 5 to 2300 milliseconds RMSTC Sets how fast the limiter reacts to the above threshold signal RMSTC range is 50 to 10000 Figure 12 Noise Gate Settings Note If you want to return to the factory settings select the...

Страница 33: ...ignal must be below for the noise gate to close pre vent the sound from getting through Threshold range is 135 to 21 db Attack Adjusts how long it takes for the gate to open once the signal falls below the thresh old Attack range is 1 to 500 ms Hold Defines the length of time the gate will stay fully open after the signal falls below the threshold Hold range is 1 to 500 ms Decay Sets the rate for ...

Страница 34: ...red Step 5 Make desired Q adjustments by adjusting knob or double clicking and typing the desired adjustment Q can be from 0 1 to 20 and sets how wide to either side of the selected frequency the adjacent frequencies are affected Q is the Quality or Quality Factor which refers to the bandwidth of one band of a parametric equalizer Q is calculated by dividing the center frequency in Hz by the width...

Страница 35: ...route the signal to the first speaker The number of output channels that appear on the Router screen depend on if channels are configured in Single Channel Bridged or Mono Channel For example if Channels 1 and 2 are in Single Chan nel Bridged Mode then three output channels appear If Channels 3 and 4 were to also be placed in Single Channel Bridged Mode then only two output channels appear on the ...

Страница 36: ...ect Router Step 4 Use the Enable button to select the output 6 12 Settings You can set select names and colors for each of the input channels Note that the number of Network channels that appear can range from 2 to 4 depending on if channels are configured in mono or single channel bridge mode Figure 15 Router for Single Channel Bridged Mode and 2 Mono Mode Channels ...

Страница 37: ... and 2 and Network 3 and 4 channels have been placed in Single Channel Bridged Mode then only two Network channels appear Figure 16 Settings Parameters for 2 Channel Mono Figure 17 Settings Parameters for 2 Single Channel Bridged ...

Страница 38: ...the name that you want to dis play for the channel Step 5 For each channel select a color that will be used to highlight the channel Step 6 Select Save 6 13 Signal Present You can set parameters for when a channel accepts a signal You can set specific parameters for each input channel and for the output channel Note If you want to return to the factory settings select the Reset icon that appears i...

Страница 39: ...tep 4 Adjust the following settings as needed Figure 18 Signal Present Parameters Note If you want to return to the factory settings select the Reset icon that appears in the right corner Table 12 Signal Present Parameters Threshold Sets the threshold level or at what level the Signal LED is illuminated Hold Sets the number of milliseconds that the sig nal light stays on after the signal is no lon...

Страница 40: ...nel bridged mode This dialog box also provides LEDs for thermal protection and clipping and a real time reading of the appliance s temperature Note that the number of Network input channels that appears depends on if the switches are set for 2 Chan nel Mono or Single Channel Bridged mode Figure 19 Status for 2 Channel Figure 20 Status When Channels 1 and 2 Are Bridged ...

Страница 41: ...ingle channel operation with a high impedance loudspeaker load is needed For information about setting the Amplifier Mode refer to the installation manual for the appliance Thermal Protect Appears red if the equipment has become too hot and has placed itself into protection mode Otherwise the LED is green Channel 1 Output Limit Appears red if the output signal is being clipped or distorted Otherwi...

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