Neodymium motor structure on tweeters?

I noticed that most of the Polk home speakers use neodymium motors on the tweeter. Why is this?? Why not use ferrite motor structures anymore?
My Setup: Pioneer VSX-830-K, Polk T50 Fronts w/ T30 Center and T50 Rears,Polk PSW108, Sony 4K Player, Philips 55" 4k TV

My Folks Setup: Sony STR DH130,Klipsch RP-150M, Sony 3D blue ray player, VIZIO 55" TV.

Comments

  • txcoastal1txcoastal1 Posts: 9,501
    Smaller and lighter
    2-channel: Modwright KWI-200 Integrated, Dynaudio C1-II Signatures, Simaudio 780D DAC
    Desktop rig: LSi7, Polk 110sub, Dayens Ampino amp, W4S DAC/pre, Sonos, JRiver
    Gear on standby: Melody 101 tube pre, Modwright LS100, Unison Research Simply Italy Integrated
    Gone to new homes: (Matt Polk's)Threshold Stasis SA12e monoblocks, Pass XA30.5 amp, Usher MD2 speakers, Dynaudio C4 platinum speakers
  • felipefelipe Posts: 404
    Isn't Neo more costly? Don't they get hotter than ferrite?
    My Setup: Pioneer VSX-830-K, Polk T50 Fronts w/ T30 Center and T50 Rears,Polk PSW108, Sony 4K Player, Philips 55" 4k TV

    My Folks Setup: Sony STR DH130,Klipsch RP-150M, Sony 3D blue ray player, VIZIO 55" TV.
  • felipefelipe Posts: 404
    For the tweeters used in the TSi series, is there any ferrofluid used??
    My Setup: Pioneer VSX-830-K, Polk T50 Fronts w/ T30 Center and T50 Rears,Polk PSW108, Sony 4K Player, Philips 55" 4k TV

    My Folks Setup: Sony STR DH130,Klipsch RP-150M, Sony 3D blue ray player, VIZIO 55" TV.
  • 20hz20hz Posts: 643
    neo (rare earth) cost more but are more effeciant and are self shielding .
    as txcoastal1 they cost less to ship so $$ talks
  • mhardy6647mhardy6647 Posts: 17,326
    edited January 14
    ...
    "It's like watching a roomful of people who couldn't get through college algebra discussing the flaws of quantum physics theory. I guess it could be fun, but it's ultimately a waste of time." -- seen on audiokarma

    "Some amps run on self bias, some amps run on fixed bias. But his amps run on confirmation bias." -- seen on audioasylum

    "Writing about hifi is like dancing about architecture" -- paraphrasing some wag (possibly Frank Zappa)
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