What are line transmission speakers?
Answers: The transmission line speaker was first described and patented in the 1960's. In a classic transmission line, the sound wave from the back of the woofer is channeled down a long pathway filled with a fibrous bundle of wool or another synthetic material. In a properly designed line, very low frequencies exit the end of the transmission line that extend the low frequency response one half octave below the fundamental resonance of the driver.
In a transmission line enclosure, the back wave of the woofer does not bounce off an interior wall and radiate back into the room through the thin cone of the woofer as in sealed or ported enclosures. These multiple echoes color the sound and can only be eliminated in a transmission line enclosure.
There is no pressure in a transmission line to excite strong enclosure resonances. In a sealed or ported box, enclosure resonances can usually only be controlled, not eliminated as in a properly designed transmission line enclosure.
Together, the extended low frequency response, the lack of multiple echoes from the inside of the box, and the elimination of wall resonance account for the extremely clean, well controlled and powerful sound of a properly designed transmission line speaker.
line transmission devices use the AC power lines in your home to transmit/receive signals. Usually there's an adapter at the audio source and one at each speaker.
In a transmission line enclosure, the back wave of the woofer does not bounce off an interior wall and radiate back into the room through the thin cone of the woofer as in sealed or ported enclosures. These multiple echoes color the sound and can only be eliminated in a transmission line enclosure.
There is no pressure in a transmission line to excite strong enclosure resonances. In a sealed or ported box, enclosure resonances can usually only be controlled, not eliminated as in a properly designed transmission line enclosure.
Together, the extended low frequency response, the lack of multiple echoes from the inside of the box, and the elimination of wall resonance account for the extremely clean, well controlled and powerful sound of a properly designed transmission line speaker.
line transmission devices use the AC power lines in your home to transmit/receive signals. Usually there's an adapter at the audio source and one at each speaker.
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