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  1. #1

    Member Sales Rating: (0)

    Join Date
    Apr 2006

    Default RTA 12B questions

    I have had RTA 12B's since the 80's. They still sound good to me, but I'll confess I no longer listen as critically as I once did. (I'm also in my 50's - it's likely I don't hear as well either.)

    Can someone tell me about the costs/complexity of renewing these speakers? Are equivalent drivers available? Will any crossover components need to be replaced? Are there upgrades that knowledgable people would recommend?

    Also, the "rosewood vinyl" covering has become sticky all over. Does anyone know of a good cleaner/solvent for this problem?

    Nice to see a company I admired so long ago continue to prosper and please its customers. We were audio dealers in Raleigh, NC, in the '70's and '80's, and Polk was one of our favorite product lines. We were the first store to offer them.

    Using these speakers in a 2-channel system with a Hafler preamp and Onkyo M5130 amp. (The Dynaco Mk III's have been retired to the attic - any buyers?)


  2. #2

    Member Sales Rating: (5)

    Join Date
    Jun 2003
    northern nj


    some might redo the crossovers after so much time, but the 12's I had (and subsequently sold to a friend) sounded fine, so I didnt have the temptation but are the drivers not functional? I would take a "if it aint broke, dont fix it" approach to the midbass and passive radiator.

    the cabinet being sticky? now I can see where you might want to do something there. I did not have that problem, so I dont know. I'm sure someone else will chime in here
    Theater - Polk LSi15, LSiC, LSi9 speaks, DIY Sub (142.5L box, SVS plus driver, 500 Watt plate amp)...Outlaw 990 pre/pro, Carver TFM45, 2 X Outlaw M200 . Rotel RB980 . PS3, Monster 3600 power center

    2 Channel -
    Anthem Pre 2l, Jolida JD100 CD player, CAL Sigma DAC, Carver m4.0, Polk LSi9 w external modified Crossovers (thanks Trey!)

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