I just read an article in Popular Science about the speakers in Sony's BDV-N790W home cinema system.
"Designers replaced a key speaker component, the damper, with a microns-thin layer of ferrofluid.... The damper ensures that the spring [??] doesn't wobble and that the [driver] diaphragm doesn't overextend. But dampers cause friction, which creates sound-distorting vibrations and can lower a speaker's overall volume. Ferrofluid holds the coil and diaphragm in place, without friction. Without a damper in the way, the speaker can reproduce louder - up to three decibels - clearer sounds across all frequencies."
Sony claims that these speakers play louder and more clearly than any others their size. They probably still sound like cheap crappy home theater-in-a-box speakers, but would anybody care to dissect this?
:hohoho:
"Designers replaced a key speaker component, the damper, with a microns-thin layer of ferrofluid.... The damper ensures that the spring [??] doesn't wobble and that the [driver] diaphragm doesn't overextend. But dampers cause friction, which creates sound-distorting vibrations and can lower a speaker's overall volume. Ferrofluid holds the coil and diaphragm in place, without friction. Without a damper in the way, the speaker can reproduce louder - up to three decibels - clearer sounds across all frequencies."
Sony claims that these speakers play louder and more clearly than any others their size. They probably still sound like cheap crappy home theater-in-a-box speakers, but would anybody care to dissect this?
:hohoho: