user manualFlashlineFlashline User Manualpage 47The latest software can be downloaded from http:// labgruppen.com/index.php/support/software_firmware/ aftercompleting an online registration form. It is recommended that all users verify they are using the latest version ofsoftware.Once the software is installed, the application is launched by double-tapping the LAKE icon on the Windowsdesktop. Please refer to the Lake Controller Operation Manual for further details on software installation and PCconfiguration.12.3.3 Software and Firmware updatesRegular software and firmware updates are available for the Lake Controller software and 20000DP amplifier. Pleasecheck for updates regularly to ensure you have the latest features and improvements.Registered users will receive email notification of updates as they become available. The latest updates are alsoavailable from http://www.labgruppen.com/index.php/support/software_firmware. Please refer to the Lake ControllerOperation Manual for further details on the firmware upgrade procedure.12.3.4 Ethernet ConfigurationThis device provides control, monitoring and digital audio functionality via an Ethernet network. For furtherinformation on the setup and configuration of an Ethernet network, please refer to the Lake Controller OperationManual and the Lake Network Configuration Guide.12.4 Gain StructureThe 20000DP architecture provides gain adjustments at various points in the signal path and therefore, variousplaces for muting and level adjustment. Each mute or gain adjustment point serves a different purpose.Detailed information on signal flow and gain structure is available in the 20000DP Operation Manual. The signalflow diagrams in chapter 5 (Figure 5-1 and Figure 5-2) are useful signal path references, and the following sectionsdescribe the various adjustment points, all of which are available via the Lake Controller software.12.4.1 Input Headroom (Analog Inputs Only)Input Headroom should be set to 12 dBu if the source can be limited to 12 dBu; otherwise it should be set to 26dBu. This setting does not affect the other gain stages, or the overall noise floor; it allows control of the appropriateheadroom at the input stage only.12.4.2 Input MixerInput Mixer gains can remain at 0.00 dB for most configurations; if only one input channel is used per Module, theother can be set to -INF.12.4.3 Module Input GainInput Gain is used to adjust the level between different speaker cabinets in the system. This gain can remain at 0.00dB unless a lower level is required for the cabinet/s driven by this Module.12.4.4 Module Output Gain (Levels)