Turbosound user manual Operating the LMS-D4, Menu Structure, System Selection, Xover Setup

user manual

LMS-D4

Operating the LMS-D4

With the unit mounted in a rack or cabinet, securely plug in all connections and check especially that the Low (LF or Bass) and High (HF or Top) outputs are connected to the correct amplifiers. It is good practice to switch on the LMS-D4 before powering up the amplifiers.

When you plug the LMS-D4 into the mains power supply, the unit will power up and the LCD display indicates the last system loaded; the unit will be configured as it was when it was last turned off. The current software version is also displayed for 10 seconds at start-up. The red Mute LED will also be illuminated, as the unit powers up by default with all outputs muted.

Menu Structure

The structure includes three sub-menus: Load a Xover, Xover Setup and Utilities. Their operation is described in the next paragraphs. To access menus, press the ‘MENU’ key and then use ‘BACK’ and ‘NEXT’ to navigate. Finally press ‘ENTER’ when the desired sub-menu appears on the display.

System Selection

This menu allows the selection of a particular loudspeaker system and configures the LMS-D4 accordingly. It sets equalisation, crossovers, and other parameters to optimal default values and the factory presets.

To display and go through the available systems, use the ‘SCROLL’ rotary encoder. The system names will appear on the bottom line of the display. Once the desired configuration appears, confirm the selection by pressing ‘ENTER’. Please note that this will cause the outputs to be automatically muted; this is to limit accidental change that could endanger the loudspeaker components. After a system is loaded the limiter settings must be adjusted since the default

setting is ‘OFF’.

Xover Setup

This menu allows you to change the settings of a number of parameters, also refered to as “user controls”. They are detailed in the next section.

Having entered the ‘Xover Setup’ menu, the information displayed will generally include three fields:

1)The top row:- the output channel(s) being refered to.

2)At the left hand side of the bottom row:- the name of the parameter being edited.

3)At the right hand side of the bottom row:- the value of the parameter.

As an exception when the control is not channel related, its description will appear on the top row (e.g. for Bass Boost).

LMS-D4 user manual Page 9