Free Shipping on All Orders 1-866-764-1801

Vist our Online Store
+ Reply to Thread
Results 1 to 19 of 19
  1. #1

    Member Sales Rating: (0)

    Join Date
    Jan 2005
    Posts
    7

    Default Another newbie question?

    I inherited a pair of polks from my father that were
    purchased in the 80's sometime and they have a tweeter that sits on top with a grill that lifts straight up. Does anyone have any idea what models they are? I believe they went for around $1200 for the pair at the time of purchase. I did not see a model number on them. They are about 3 feet high and around 20 inches wide.

    Thanks

  2. #2

    Member Sales Rating: (7)

    Join Date
    Jul 2001
    Location
    lookin' for fava beans and a nice chianti
    Posts
    12,608

    Default

    Sounds like you have an RTA 12....

    Search around here, there are more than a few threads on them.

    BDT
    I plan for the future. - F1Nut

  3. #3

    Member Sales Rating: (0)

    Join Date
    Jan 2005
    Posts
    7

    Default

    Thanks! Were there similar models with a smaller sub than 12 inches. For some reason I don't remeber the sub being that large. I'll have to have another look when I get home tonight.

  4. #4
    Old School
    Member Sales Rating: (1)

    Join Date
    Dec 2002
    Location
    Higher & Dryer, Texas
    Posts
    10,177

    Default

    Welcome to the Club...

    Not sub... "passive radiator". It is not powered, it produces bass via equal and opposite movement of the twin mid-woofers and the sealed cabinet. The PR is the basis of all the great, old Polks.

    The RTA12, with its top mounted tweeter, was one of a kind in the Polk line-up.
    More later,
    Tour...
    Vox Copuli
    Better to remain silent and be thought a fool, than to open your mouth and remove all doubt. - Old English Proverb

    "It's easy to get lost in price vs performance vs ego vs illusion." - doro
    "There is a certain entertainment value in ripping the occaisonal (sic) buttmunch..." - TroyD
    "Death doesn't come with a Uhaul." - Dennis Gardner

    Rebuilding Maggie 2-ch & Amazing 2-ch... Building 2-ch "wall"... Figuring out the HT

  5. #5

    Member Sales Rating: (0)

    Join Date
    Jan 2005
    Posts
    7

    Default

    I don't get it. Since when does it have to be powered to be a subwoofer?

  6. #6

    Member Sales Rating: (13)

    Join Date
    Mar 2002
    Location
    The Mars Hotel
    Posts
    31,301

    Default

    A driver, be it mid-driver, woofer or subwoofer has wires connected to it, so that it can receive a signal and therefore produce sound. A passive radiator doesn't have any wires connected to it, therefore is passive and since it radiates sound from the movement of other drivers, it's a radiator. Simple really.
    'Political Correctness'.........defined

    "A doctrine fostered by a delusional, illogical minority and rabidly promoted by an unscrupulous mainstream media, which holds forth the proposition that it is entirely possible to pick up a turd by the clean end."

  7. #7
    Old School
    Member Sales Rating: (1)

    Join Date
    Dec 2002
    Location
    Higher & Dryer, Texas
    Posts
    10,177

    Default

    Yup...

    R/T, when you said "sub" I took you to mean a device that receives a music signal via wiring and has a voice coil to translate that signal into acoustic energy.

    If you simply meant "sub" as a term relating to the production of deep bass, then a PR sorta is a "sub", but it's not the way we use use the term around here...
    More later,
    Tour...
    Vox Copuli
    Better to remain silent and be thought a fool, than to open your mouth and remove all doubt. - Old English Proverb

    "It's easy to get lost in price vs performance vs ego vs illusion." - doro
    "There is a certain entertainment value in ripping the occaisonal (sic) buttmunch..." - TroyD
    "Death doesn't come with a Uhaul." - Dennis Gardner

    Rebuilding Maggie 2-ch & Amazing 2-ch... Building 2-ch "wall"... Figuring out the HT

  8. #8

    Member Sales Rating: (0)

    Join Date
    Jan 2005
    Posts
    7

    Default

    And here I was thinking there are wires connected to the passive radiator and apparently there are not. Something that big 12" and it does nothing like I thought. Thanks for the info guys.

  9. #9

    Member Sales Rating: (4)

    Join Date
    Aug 2002
    Location
    PA
    Posts
    5,850

    Default

    That's what makes it passive :). It receives no signal, no power, nothing. It's "driven" by the movement of the smaller mid-bass drivers. If you notice, there's no port in the cabinets anywhere for air to get out. It's a totally sealed system, which is why it works.

    What do you think of them, anyway? :D
    Ludicrous gibs!

  10. #10

    Member Sales Rating: (11)

    Join Date
    Jul 2001
    Location
    Spokane, Washington
    Posts
    15,835

    Default

    welcome R/T

    enjoy your new speakers.

    treasure them.. they will bring years of listening enjoyment.
    PolkFest 2012, who's going>?
    Vancouver, Canada Sept 30th, 2012 - Madonna concert

  11. #11

    Member Sales Rating: (13)

    Join Date
    Mar 2002
    Location
    The Mars Hotel
    Posts
    31,301

    Default

    Just make sure you hook them up to something respectable, no receivers!
    'Political Correctness'.........defined

    "A doctrine fostered by a delusional, illogical minority and rabidly promoted by an unscrupulous mainstream media, which holds forth the proposition that it is entirely possible to pick up a turd by the clean end."

  12. #12

    Member Sales Rating: (0)

    Join Date
    Jan 2005
    Posts
    7

    Default

    I just looked at them a little closer and I see what you mean about the passive radiator. They are the RT12A's and they rock. I will be using an old school pioneer
    receiver sx-950. Not an amp but still pretty good stuff for it's time. I've been a Polk fan since I was a kid and went shopping with my old man for his SDA series polks.

  13. #13

    Member Sales Rating: (13)

    Join Date
    Mar 2002
    Location
    The Mars Hotel
    Posts
    31,301

    Default

    Glad you like them. If you ever have the chance to feed them some amp power I think you'll like them even more. :)
    'Political Correctness'.........defined

    "A doctrine fostered by a delusional, illogical minority and rabidly promoted by an unscrupulous mainstream media, which holds forth the proposition that it is entirely possible to pick up a turd by the clean end."

  14. #14

    Member Sales Rating: (58)

    Join Date
    Feb 2003
    Location
    6 Underground
    Posts
    25,306

    Default

    That's a cool speaker.

    As a side note, you can't "power" a speaker with air, thus it's "passive". When you add electricity, it becomes "active".

    I love the old Polk Audio ads that say "Fluid Coupled Subwoofer".....sounds cool eh?

    What they mean is "Passive Radiator", and how lame does that sound? Yep, real lame, stick with the marketing suggestion.
    Last edited by dorokusai; 01-26-2005 at 01:03 AM.

  15. #15

    Member Sales Rating: (4)

    Join Date
    Aug 2002
    Location
    PA
    Posts
    5,850

    Default

    The SX-950 is a beast of a receiver, and should be able to handle them for now. 85wpc might not seem like much, but them's old-skool watts, not those newfangled plasticised watts ;)

    Here's a link to some light specs- http://www.classicaudio.com/value/pio/SX950.html

    I lot of specs are missing for these, even on www.classic-audio.com which usually has some of the best classic Pioneer info on the web.

    I have a Pioneer SX-450, and I love it. I'm not currently using it to drive anything because it needs a little work. But once and a while I pull it out and hook it up, and it never fails to bring a smile to my face :). (and it's only rated 15wpc!)
    Ludicrous gibs!

  16. #16

    Member Sales Rating: (0)

    Join Date
    Jan 2005
    Posts
    7

    Default

    I hooked up my sx-950 to a pair of cheap bookshelfs and was amazed at how good they sounded with the Pioneer receiver vs the Aiwa plastic jobby.

  17. #17

    Member Sales Rating: (11)

    Join Date
    Jul 2001
    Location
    Spokane, Washington
    Posts
    15,835

    Default

    Originally posted by R/T
    I hooked up my sx-950 to a pair of cheap bookshelfs and was amazed at how good they sounded with the Pioneer receiver vs the Aiwa plastic jobby.

    umm yeah. hello. is the Pioneer silver faced? it's vintage classic sounding gear. from when receivers sounded good. unlike some of todays stuff.

    good work.
    PolkFest 2012, who's going>?
    Vancouver, Canada Sept 30th, 2012 - Madonna concert

  18. #18

    Member Sales Rating: (0)

    Join Date
    Jan 2005
    Posts
    7

    Default

    Yes it is silver faced....I have the Eq,Casette Deck,Reel to Reel,turntable and reverberation amp all silver face stuff to go with it. All collecter's items and I'm proud to have them come my way.

  19. #19

    Member Sales Rating: (4)

    Join Date
    Aug 2002
    Location
    PA
    Posts
    5,850

    Default

    R/T- NEVER GET RID OF THOSE

    or, GET RID OF THEM TO ME

    :D
    Ludicrous gibs!

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

     

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts