Weak Subwoofer Directivity? Here's a Fix
Sub-bass (ultra-low frequencies) is essential in audio. Whether for live sound or AV rentals, dealing with subwoofers is inevitable. However, their defining characteristic—weak directivity—poses significant challenges.
Sub-bass wavelengths are long, leading to strong diffraction and minimal directivity (approaching omnidirectional). In live music, while the audience enjoys powerful bass, the stage experiences excessive vibration, causing discomfort and masking the low end of instruments.
Professional engineers use specialized techniques: Subwoofer Arrays! Multiple subs are arranged with some drivers reversed, exploiting phase cancellation to reduce rear/side energy. However, this also cancels some useful forward energy, causing unavoidable system loss.
Undeterred, engineers devised other solutions, like placing subs in pits beneath the stage to mitigate stage impact. This requires dedicated subwoofer enclosures under the stage.
These methods are complex and costly.
Is there a simpler, affordable solution to weak subwoofer directivity?
Historically, no ideal solution existed—until December 2017, when QSC solved it!
KS212C Cardioid Subwoofer
The QSC KS212C is the world's first active cardioid subwoofer, achieving directional bass control in a single enclosure. Its inherent cardioid pattern focuses energy forward.
This represents a breakthrough in loudspeaker design. The simple solution to weak sub-bass directivity: Choose the KS212C Active Cardioid Subwoofer.
Debuted at Infocomm 2017, it generated significant industry buzz. After QSC's efforts, it's now mass-produced and available.
undefinedTraditional Subwoofer
undefinedKS212C Cardioid
New technologies revolutionize industries, offering convenience and better experiences. The KS212C redefines subwoofers with innovation, promising exceptional performance.
Sub-bass wavelengths are long, leading to strong diffraction and minimal directivity (approaching omnidirectional). In live music, while the audience enjoys powerful bass, the stage experiences excessive vibration, causing discomfort and masking the low end of instruments.
Professional engineers use specialized techniques: Subwoofer Arrays! Multiple subs are arranged with some drivers reversed, exploiting phase cancellation to reduce rear/side energy. However, this also cancels some useful forward energy, causing unavoidable system loss.
Undeterred, engineers devised other solutions, like placing subs in pits beneath the stage to mitigate stage impact. This requires dedicated subwoofer enclosures under the stage.
These methods are complex and costly.
Is there a simpler, affordable solution to weak subwoofer directivity?
Historically, no ideal solution existed—until December 2017, when QSC solved it!
KS212C Cardioid Subwoofer
The QSC KS212C is the world's first active cardioid subwoofer, achieving directional bass control in a single enclosure. Its inherent cardioid pattern focuses energy forward.
This represents a breakthrough in loudspeaker design. The simple solution to weak sub-bass directivity: Choose the KS212C Active Cardioid Subwoofer.
Debuted at Infocomm 2017, it generated significant industry buzz. After QSC's efforts, it's now mass-produced and available.
undefinedTraditional Subwoofer
undefinedKS212C Cardioid
New technologies revolutionize industries, offering convenience and better experiences. The KS212C redefines subwoofers with innovation, promising exceptional performance.