Diffraction occurs when some of the energy radiated by the drivers is re-radiated at a later time from the cabinet edges. Diffraction causes tonal balance problems by increasing energy to the listener at some frequencies and reducing energy at other frequencies. Diffraction also causes smearing of transient sounds, distortion of spatial cues, and creates a "boxy" sound.

top view of speaker

With most speakers, sound from the tweeter encounters cabinet edges that cause energy to be diffracted.


THIEL floor-standing speakers employ a rounded baffle or grilleboard that allow's the tweeter's energy to radiate outward into the room without encountering abrupt edges. The result is spacious and uncolored reproduction.


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