It is very common to arrange for comparisons of SR/PA-systems. However, often, these comparisons are organized in a way leaving procedures less transparent and results rather unclear. Standards for the assessment of loudspeakers do exist. The assessors basically must be trained for the purpose, and the set-up should support double-blind testing. However, in the test of big systems, the listening panel is not necessarily trained, and the practical problems of rigging huge arrays to some degree may weaken the procedures and the results. This paper describes considerations for the comparative assessment of SR/PA systems. The paper also reports the outcome of an experiment where considered principles were applied.
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