Impedance of RTA 12B

gene stangel
gene stangel Posts: 35
edited December 2002 in Troubleshooting
I have a chance to purchase a used pair of RTA 12B.
What is the nominal impedance?
Seller claims tweeter is SL3000 but parts list
only lists SL1000. Which is true?
Thanks
Post edited by gene stangel on
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Comments

  • F1nut
    F1nut Posts: 50,566
    edited November 2002
    I'm not sure of the impedance, you could check with Polk. The tweeter is a SL1000.
    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 t-u-r-d by the clean end."

    President of Club Polk

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  • stubby
    stubby Posts: 723
    edited November 2002
    My RTA 12C's are 4 ohm nominal, I would bet the B series are the same. You will of course want a high current amp to really drive them.

    Stubby
    SRS 3.1TL
    Harman Kardon Citation 5.1
    Anthem AVM2



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  • ashuanipix
    ashuanipix Posts: 12
    edited December 2002
    Just happened to see your post today so don't know if you are still checking now that 3 weeks have gone by.
    According to the equipment test report done by Hirsch-Houck Laboratories in the early eighties on the RTA 12 B "the impedance of the Polk 12B was less than its rated 4 ohms between 100 and 1500 Hz, measuring about 3 ohms over much of that range. Maxima of 12 to 15 ohms were measured below 20 Hz as well as at 54 and 3,500 Hz."

    Hope this is still useful for you.
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