What happenned to all the Polk Subs with Power Port technolgy?

Taurus574
Taurus574 Posts: 52
edited January 2006 in Speakers
Did they do away with it or somthing. It seems that their current line is only front radiating woofers instead of their other line with Power Ports. Maybe it didn't sell well?
Yamaha HTR-5490, Polk RT1000I, cs4000i, CS175 and R10 .... and a soon to be SVS 20-39 PCI
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  • Early B.
    Early B. Posts: 7,900
    edited January 2006
    It's called, "marketing." Gotta keep doing something different for the finnicky broad-based consumer market.
    HT/2-channel Rig: Sony 50” LCD TV; Toshiba HD-A2 DVD player; Emotiva LMC-1 pre/pro; Rogue Audio M-120 monoblocks (modded); Placette RVC; Emotiva LPA-1 amp; Bada HD-22 tube CDP (modded); VMPS Tower II SE (fronts); DIY Clearwave Dynamic 4CC (center); Wharfedale Opus Tri-Surrounds (rear); and VMPS 215 sub

    "God grooves with tubes."
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  • VR3
    VR3 Posts: 28,779
    edited January 2006
    Anothe problem was it created port noise in subs...

    So they went to the large slot port - or a slort port + power port combo...
    - Not Tom ::::::: Any system can play Diana Krall. Only the best can play Limp Bizkit.
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  • Joey_V
    Joey_V Posts: 8,586
    edited January 2006
    Vr3MxStyler2k3 wrote:
    Anothe problem was it created port noise in subs...

    So they went to the large slot port - or a slort port + power port combo...

    I thougth the power port was supposed to reduce port noise?
    Magico M2, JL113v2x2, EMM, ARC Ref 10 Line, ARC Ref 10 Phono, VPIx2, Lyra Etna, Airtight Opus1, Boulder, AQ Wel&Wild, SRA Scuttle Rack, BlueSound+LPS, Thorens 124DD+124SPU, Sennheiser, Metaxas R2R
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  • StopherJJ1980
    StopherJJ1980 Posts: 267
    edited January 2006
    This brings up an interesting point I have wondered about for awhile. Can a little curved cone at the port make all THAT much difference? I always found it kinda gimmick-y too but... thats why I dont design loudspeakers too :)
    -Stopher
    Tempe, AZ

    Setup:
    Polk RTi8 Mains
    Polk CSi5 Center
    Polk FXi3's Surround
    Cerwin Vega HTS10 Subwoofer
    Yamaha HTR-5740 AVR

    Upstairs R50/R15/CS1 5.1 setup w Pioneer AVR
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  • StopherJJ1980
    StopherJJ1980 Posts: 267
    edited January 2006
    And a second though, has anyone ever HEARD port-noise on anything but a really poorly designed speaker? Seems to me like you shouldnt hear it on any decent speaker you buy.
    -Stopher
    Tempe, AZ

    Setup:
    Polk RTi8 Mains
    Polk CSi5 Center
    Polk FXi3's Surround
    Cerwin Vega HTS10 Subwoofer
    Yamaha HTR-5740 AVR

    Upstairs R50/R15/CS1 5.1 setup w Pioneer AVR
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  • Joey_V
    Joey_V Posts: 8,586
    edited January 2006
    I heard port noise with Onix Reference 1 ($1500), SVS 25-31PC+ ($775) to name a few...

    And I thought those two were well designed and the price reflects some of that design.
    Magico M2, JL113v2x2, EMM, ARC Ref 10 Line, ARC Ref 10 Phono, VPIx2, Lyra Etna, Airtight Opus1, Boulder, AQ Wel&Wild, SRA Scuttle Rack, BlueSound+LPS, Thorens 124DD+124SPU, Sennheiser, Metaxas R2R
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  • StopherJJ1980
    StopherJJ1980 Posts: 267
    edited January 2006
    touchee :) lol
    -Stopher
    Tempe, AZ

    Setup:
    Polk RTi8 Mains
    Polk CSi5 Center
    Polk FXi3's Surround
    Cerwin Vega HTS10 Subwoofer
    Yamaha HTR-5740 AVR

    Upstairs R50/R15/CS1 5.1 setup w Pioneer AVR
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  • VR3
    VR3 Posts: 28,779
    edited January 2006
    While the power port reduces port noise, that is mostly from a speaker stand point.

    Obviously if it worked for subs, they'd be using it a bit more than in COMBINATION* with a slot...

    I always really just throught Polk used the power port so you can put their rear ported speakers right up on the wall. because with the PP it distributes the air evenly on all sides instead of straight out - so it will have the same bass response regardless of whats behind it...
    - Not Tom ::::::: Any system can play Diana Krall. Only the best can play Limp Bizkit.
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  • Joey_V
    Joey_V Posts: 8,586
    edited January 2006
    I think you're right Sid... it's probably also useful for positioning.
    Magico M2, JL113v2x2, EMM, ARC Ref 10 Line, ARC Ref 10 Phono, VPIx2, Lyra Etna, Airtight Opus1, Boulder, AQ Wel&Wild, SRA Scuttle Rack, BlueSound+LPS, Thorens 124DD+124SPU, Sennheiser, Metaxas R2R
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  • organ
    organ Posts: 4,969
    edited January 2006
    The PP is not a gimmick and not for marketing.

    Don't forget, the Power Port also increases bass by 3db and like others said, you can place them closer to the wall/corner than other speakers because the first refelction point is the power port.

    Polk is not the only speaker company that do funky things to their ports to reduce port noise. A lot of companies have their own technology to combat port noise.
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  • Dennis Gardner
    Dennis Gardner Posts: 4,861
    edited January 2006
    organ wrote:
    A lot of companies have their own technology to combat port noise.


    Yeah, its called acoustic suspension. :D
    HT Optoma HD25 LV on 80" DIY Screen, Anthem MRX 300 Receiver, Pioneer Elite BDP 51FD Polk CS350LS, Polk SDA1C, Polk FX300, Polk RT55, Dual EBS Adire Shiva 320watt tuned to 17hz, ICs-DIY Twisted Prs, Speaker-Raymond Cable

    2 Channel Thorens TD 318 Grado ZF1, SACD/CD Marantz 8260, Soundstream/Krell DAC1, Audio Mirror PP1, Odyssey Stratos, ADS L-1290, ICs-DIY Twisted , Speaker-Raymond Cable
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  • organ
    organ Posts: 4,969
    edited January 2006
    Yeah, that's one way lol.

    I'm not talking about sealed designs though.
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  • Taurus574
    Taurus574 Posts: 52
    edited January 2006
    If the PP was such great technology then it should be in the newer models but it's not. :confused:
    Yamaha HTR-5490, Polk RT1000I, cs4000i, CS175 and R10 .... and a soon to be SVS 20-39 PCI
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