SDA SRS 1.2 has a 1.2TL Crossove

gdsk39a
gdsk39a Posts: 28
edited November 2012 in Vintage Speakers
Was looking inside the SDA SRS 1.2 and saw it actually has a 1.2TL crossover. The speakers are also marked as SDA SRS 1.2.

Any idea why that may be?

Puzzled!:rolleyes:
Post edited by gdsk39a on
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  • Toolfan66
    Toolfan66 Posts: 17,244
    edited November 2012
    Are you sure? What tweeters did your speakers come with? The 1.2 and 1.2tl crossovers look a lot a like..
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  • gdsk39a
    gdsk39a Posts: 28
    edited November 2012
    Positive its a 1.2TL crossover as I went by the capacitor values on the board which match the 1.2TL Schematic Cap Values.
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  • michaeljhsda2
    michaeljhsda2 Posts: 2,184
    edited November 2012
    If the tweeters are SL3000's, you have 1.2 TL's. If they're SL2000's, they're 1.2's and can be converted to 1.2 TL's with the appropriate modifications.
    SDA SRS 2.3TL's
    Silk Audio MS-90-BT integrated tube amp
    Yaqin MS-20L integrated tube amp
    SDA 2B TL's
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  • Toolfan66
    Toolfan66 Posts: 17,244
    edited November 2012
    We need pics...
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  • Schurkey
    Schurkey Posts: 2,101
    edited November 2012
    gdsk39a wrote: »
    Was looking inside the SDA SRS 1.2 and saw it actually has a 1.2TL crossover. The speakers are also marked as SDA SRS 1.2.

    Any idea why that may be?

    Puzzled!:rolleyes:
    Polk often used semi-generic decals on the backs. My SDA 1Bs are labeled SDA 1.

    First Guess: You have 1.2TLs with 1.2 decals. Photos and/or tweeter labeling will tell the story.
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  • Toolfan66
    Toolfan66 Posts: 17,244
    edited November 2012
    This^^^^^
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  • nhhiep
    nhhiep Posts: 877
    edited November 2012
    The sticker on the back of my 1C says 1 as well.
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  • gdsk39a
    gdsk39a Posts: 28
    edited November 2012
    Based on the Laserath diagram and actual crossover cap values I indeed have 1.2TLs.

    Now I am furious. I upgraded the tweeters and the 8 drivers on each speaker thinking they were SDA SRS 1.2 tweeters and drivers because of what the labels said in the back of the speakers (Shame on me for assuming the speaker labels were correct). I now may have a mess on my hands. I will say the speakers sound great to me. But that could be my ears getting used to speakers that have the incorrect parts installed for the last couple of years.

    Damn! Damnation!
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  • Toolfan66
    Toolfan66 Posts: 17,244
    edited November 2012
    Why did you replace the drivers??

    Also when you replaced the tweeters if you purchased 194's they would not have been plug and play, you would have had to modify one of the wires for it to plug into the tweeter. The 198's would have been plug and play..

    If you did in fact purchase 194's just sell them and get the 198's..

    As far as the drivers go both 1.2's and 1.2tl's use the same drivers so you are good there..
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  • DarqueKnight
    DarqueKnight Posts: 6,765
    edited November 2012
    gdsk39a wrote: »
    I upgraded the tweeters and the 8 drivers on each speaker thinking they were SDA SRS 1.2 tweeters and drivers because of what the labels said in the back of the speakers (Shame on me for assuming the speaker labels were correct).

    Damn! Damnation!

    SDA's were designed to be listened to and enjoyed only by a small group of people with special inside knowledge of Polk's manufacturing practices and the fundamentals of stereophonic reproduction.

    It's sorta like how jazz music is designed only to be listened to and enjoyed by other jazz musicians.
    Proud and loyal citizen of the Digital Domain and Solid State Country!
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  • Toolfan66
    Toolfan66 Posts: 17,244
    edited November 2012
    Hey!! I'm no musician and Jazz is some of my favorite music to play on SDA's...:redface::cheesygrin:
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  • PolkieMan
    PolkieMan Posts: 2,446
    edited November 2012
    Wow you did all of the drivers? Why?

    Toolfan66 wrote: »
    Why did you replace the drivers??

    Also when you replaced the tweeters if you purchased 194's they would not have been plug and play, you would have had to modify one of the wires for it to plug into the tweeter. The 198's would have been plug and play..

    If you did in fact purchase 194's just sell them and get the 198's..

    As far as the drivers go both 1.2's and 1.2tl's use the same drivers so you are good there..
    POLK SDA 2.3 TLS BOUGHT NEW IN 1990, Gimpod/Sonic Caps/Mills RDO-198
    POLK CSI-A6 POLK MONITOR 70'S ONKYO TX NR-808 SONY CDP-333ES
    PIONEER PL-510A SONY BDP S5100
    POLK SDA 1C BOUGHT USED 2011,Gimpod/Sonic Caps/Mills RDO-194
    ONKYO HT RC-360 SONY BDP S590 TECHNICS SL BD-1
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