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Sorry. Nearly all speakers are omnidirectional at low frequencies. Directionality below 400 Hz or so is really tricky and unrewarding, and with a wavelength of four feet or more low frequency ends up close-coupling most indoor spaces anyway. Directionality is desirable at high frequencies because what we encounter as lobing at low frequencies we experience as phasing at high... and the fewer point reflections you have to deal with, the less likely your soundfield is to be annihilated by bullshit bouncing off the back wall.

There's nothing "legitimate" about the concept - it's better sound through marketing, primarily due to B&O's desire to make non-speaker-looking speakers. The audiophile tweakers just took it well past the point of nonsense, same as the ridiculous cables, same as the green magic markers, same as all the rest.

You can want this nonsense, but you can't tell me not to call nonsense nonsense.