This paper discusses the Fractal Spatial System (FSS) loudspeaker technology, which has adapted the Quadratic Residue Diffuser technology first described by Manfred Schroeder in 1979. A passively generated wavelet function of nonphase expands the acoustic environment from information encoded naturally into the signal. FSS is compatible with all artificial encoders and has unique properties that, for a passive system, may well define the future of sound reproduction.
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