4.5 DSAPilot
DSAPilot, used to set the module signal processing parameters, is based on software originally developed by EAW engineers for the KF750, KF760, and, in particular, the KF900 Series products. These products required precise but variable pattern control and a high degree of fidelity for speech and music in projects that range from small houses of worship to the newest super-stadiums. Sophisticated mathematical algorithms were developed to calculate the signal processing to achieve these results for both multiple transducers and multiple module clusters. Thoroughly tested and refined in successful, real-world applications, these techniques have been applied to the DSAi Series to achieve the same high degree of pattern control, musicality, and ease of setup.
Though highly complex, DSAPilot’s mathematics work behind the scenes. DSAPilot is highly user-friendly, making the signal processing adjustments deceptively simple. In fact, no acoustical knowledge is required to set up and adjust DSAi Series modules. The only information needed for DSAPilot to perform its magic is the module mounting location, and desired coverage area.
4.6 Low Frequency Performance
While the DSA250i is designed as a full-range module, addition of the companion DSA230i increases directionality and output at lower frequencies. Directional control is increased in classical line array fashion by extending the length of the overall array by mounting the DSA230i in line with a DSA250i to form a longer line of low frequency transducers. In addition, the increased number of low frequency transducers couple to increase the low frequency output capability.
4.7 Comparison to Traditional Products
A major benefit of the DSAi Series is achieving desired down angle coverage from a line source that is mounted flat to a vertical surface. The inclusion of power amplifiers and dedicated signal processing to each transducer provide the DSAi Series with performance and capabilities well beyond those of typical multi-way loudspeakers and traditional, voice-range line arrays. The DSAi Series can provide much better directional control, higher output, and wider frequency response. Significantly smaller sizes and weights, plus straightforward mounting and wiring options pay additional benefits in reduced installation costs and operation. The flexibility of DSAPilot to automatically optimize the acoustical performance for multiple DSAi Series modules in a single larger space further enhances their advantage over traditional solutions.
4.8 Designing DSAi Systems
DSAi modules can be used individually, in multiples, or in various cluster configurations to satisfy a wide range of design requirements. By using different configurations, DSAi performance can be varied according to the type of audio program, the frequency range for the vertical control desired, the maximum output levels, the audience location relative to the module, and for meeting the requirements for special applications.