Abstract: An acoustic lens may improve the directional audio performance of a loudspeaker. Application of the improved directional audio performance to a sound system in a listening area may improve the performance of the audio system. The acoustic lens (or phase plug) may be acoustically opaque and partially fill the cavity formed by the loudspeaker cone. The acoustic lens may provide an improved frequency response and directivity. The improved loudspeaker may provide an improved listening location, for example, in a vehicle, a room or a concert hall.

Abstract: A speaker assembly may include a first woofer speaker electronically coupled to a first electronic circuit including high-Q filter configured to provide first audio signals having frequencies between 200-2000 Hz to the first woofer speaker. The speaker assembly may further include at least one second woofer speaker electronically coupled to a second electronic circuit configured to provide second audio signals having frequencies between 20-200 Hz to the second woofer speaker, wherein the first woofer speaker is identical to the second woofer speaker and is configured to operate as a mid-range speaker.

Abstract: An acoustic lens may improve the directional audio performance of a loudspeaker. Application of the improved directional audio performance to a sound system in a listening area may improve the performance of the audio system. The acoustic lens (or phase plug) may be acoustically opaque and partially fill the cavity formed by the loudspeaker cone. The acoustic lens may provide an improved frequency response and directivity. The improved loudspeaker may provide an improved listening location, for example, in a vehicle, a room or a concert hall.

Abstract: A speaker assembly may include a first woofer speaker electronically coupled to a first electronic circuit including high-Q filter configured to provide first audio signals having frequencies between 200-2000 Hz to the first woofer speaker. The speaker assembly may further include at least one second woofer speaker electronically coupled to a second electronic circuit configured to provide second audio signals having frequencies between 20-200 Hz to the second woofer speaker, wherein the first woofer speaker is identical to the second woofer speaker and is configured to operate as a mid-range speaker.