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Harmonic Design History

2000: Development of the hd PowerSound algorithm

Development of the hd PowerSound algorithm for significantly improved low-frequency reproduction even for small subs.

Introducing the next generation of digital signal processors hd DSC2. First time extensive use of FIR filter technology in combination with IIR filters for uncompromising optimization of loudspeaker systems.

1995: New methods of speaker system control and optimization

Market introduction of the hd SYSTEM2000 loudspeakers and electronics with uniquely new methods of speaker system control and optimization in the room, implementation of the GroupDelayCorrection algorithm in the signal processing, 2-stage limiter and direct MLSSA measurement file import combines the optimization of all parameters in one software interface.

Sound optimization with hd SYSTEM2000
SYSTEM2000 brochure