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).

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

The Turbosound LMS-D4 is a high-performance digital loudspeaker management system designed for both live sound and fixed installations. This advanced processor offers powerful features and cutting-edge technologies that enable audio engineers and sound technicians to achieve optimal sound quality and system performance.

One of the main features of the LMS-D4 is its four input and four output configuration, which provides flexibility in audio routing and signal processing. The system allows users to manage multiple audio sources and outputs simultaneously, making it ideal for complex sound setups. With an intuitive user interface, the LMS-D4 provides easy access to its wide range of processing tools, ensuring that users can make real-time adjustments effortlessly.

The LMS-D4 employs advanced digital signal processing (DSP) technology. This technology includes high-quality crossover configurations, EQ, delay, and limiting functions that enhance the overall audio quality. Users can benefit from precision audio control, allowing them to tailor the sound to specific environments and audiences.

Another key characteristic of the LMS-D4 is its robust connectivity options. The system features both analog and digital inputs, including AES/EBU, ensuring compatibility with various audio sources. The inclusion of CobraNet and Dante connectivity options facilitates easy integration into networked audio systems, enhancing the system’s versatility.

Additionally, the LMS-D4 incorporates comprehensive monitoring and diagnostics tools. The real-time analysis functionality allows users to assess system performance and make necessary adjustments on the fly. This feature is essential for live sound applications where immediate response is critical to maintaining audio integrity.

The build quality of the LMS-D4 is also noteworthy. It is housed in a rugged chassis designed for durability, making it suitable for both touring applications and permanent installations. The unit's front-panel LED indicators provide clear status feedback, enhancing operational efficiency.

In summary, the Turbosound LMS-D4 is a powerful digital loudspeaker management system that combines flexibility, advanced DSP processing, and robust connectivity options. With its user-friendly interface and monitoring capabilities, it simplifies complex audio setups, ensuring professional results in any live or fixed installation scenario. The LMS-D4 stands out as an essential tool for audio professionals seeking to elevate their sound management capabilities.
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