Line Array Calculator III (LAC-III) is no longer under active development and its mechanical and acoustic results may not accurately reflect the latest product specifications, safety guidelines, or acoustic data.

For the most accurate and up-to-date calculations, please use Venue Synthesis, which incorporates the latest acoustic data and mechanical safety requirements.

Line Array Calculator (LAC) is a software tool providing two-dimensional acoustic simulation and mechanical validation of flown and ground-deployed VTX Series and SRX900 sound systems.

Line Array Calculator’s enhanced acoustical modeling includes color SPL mapping, 0dB Isobar, and SPL attenuation modes with frequency response and SPL predictions based on supported speaker DSP presets. Users can place up to 8 virtual microphones anywhere on a listening plane in the venue for accurate position-dependent frequency response simulation. An unlimited quantity of planes can be created to build and map complex venue geometry.

With its robust mechanical engine, LAC performs mechanical validation and the calculation of all weight limits and safety warnings for JBL VTX Series and SRX900 systems. Single and multi-point array mechanical validation and suspension weight limit calculations are performed in real-time. Array safety factors are computed by taking into consideration array statistics and design factors, including array size, weight, center of gravity, and rigging accessories, making it easy to comply with required safety regulations. Safety warning messages are provided when an unsafe configuration is created.

The distributed subwoofer modeling mode can predict the response of subwoofer arrays, generate polar responses and calculate delay values for electronic subwoofer array steering (EDS). With subwoofer mode, system designers can make informed decisions about how subwoofer arrays should be placed in venues and aid in the optimization of these arrays to achieve the best possible performance.

MAIN FEATURES:

• 2D Acoustic prediction of VTX Series and SRX900 systems
• Support for 8 virtual measurement probes for predicting the frequency response of an array
• Dedicated subwoofer mode for acoustic prediction of ground stacked arrays with the ability to generate delay values for Electronic Delay Steering (EDS)
• Built-in array optimization tools, including an Array Size Compensation (ASC) filter
• Array import support with Performance and Performance Manager control software
• Mechanical validation of arrays in real-time for single and dual-point suspension modes
• Array statistics, including array size, depth, weight, and safety factor
• 3D DXF Export support for speaker arrays
• EASE GLL configuration export support