Polk Tweeters ~ what are these guys

AcousticPop
AcousticPop Posts: 2
in Vintage Speakers
I recently picked up some Polk speakers and I'm curious to find out if the tweeters have been upgraded. One pair of SDA 2's and a pair of Monitor 5's. The date sticker on the crossover boards indicate 1987. Both pairs of crossovers have had the caps upgraded to Solens. All four tweeters visually look identical and none have an I.D. label. One of the tweeters is silent and needs to be replaced.
I'm guessing that these are SL-2500's, but could they be the later RDO-194's or 198's, and how can I tell?m3dauet26xpn.jpg
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  • FestYboy
    FestYboy Posts: 3,861
    edited July 2019 Answer ✓
    I'm betting RD0-194 since the xo was updated and it's a series 1 M5.

    Edit for derp on my part
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  • F1nut
    F1nut Posts: 50,543
    Answer ✓
    Whomever did the crossovers did a really crappy job. In addition, they used Solen caps and didn't even upgrade the resistor. The tweeters are RD0194.
    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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