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Thread: Sda 1a

  1. #1

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    Default Sda 1a

    Looking at opinions on the SDA 1A's. Don't see much on them here. Usually other model SDA's are preferred and talked abou. Also, what would you pay for them if they were in original and in good condition?

  2. #2

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    Bruce, I just finished a pair, and they sounds awesome. Once the crossovers are upgraded, RDO-194s installed for the Stereo side, and the Dimensional Tweeters disconnected, they're quite good.
    Home Theater/2 Channel:
    Front: SDA-2ATL
    Center: Custom Built http://www.polkaudio.com/forums/show...hannel-Project
    Surrounds & Rears: Custom Built http://www.polkaudio.com/forums/show...rround-Project
    Sonicaps, Mills, RDO-194s-198s, Dynamat & Hurricane Nuts.
    Pioneer Elite VSX-72TXV, Carver PM-350
    Other:
    SDA-CRS+
    Bose 901 Series II Continentals, Custom Rebuilt Equalizer
    www.dhsspeakerservice.com

  3. #3

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    Quote Originally Posted by westmassguy View Post
    Bruce, I just finished a pair, and they sounds awesome. Once the crossovers are upgraded, RDO-194s installed for the Stereo side, and the Dimensional Tweeters disconnected, they're quite good.
    David, How do they sound with the dimensional tweeter connected? Does the extra tweeter give more SDA effect or maybe a reverb sound? What exactly does it do? I'm curious.
    SDA 2BTL Sonicaps Mills resistors RDO-198s New gaskets H-nuts Erse inductors Crossover upgrades by westmassguy
    Adcom GTP-450 preamp
    Adcom GFA-555 amp Upgrades & speaker protection added by OldmanSRS
    Pioneer DV-610AV DVD/CD player
    SDA CRS+ Hidden away in the closet

  4. #4

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    Since I'm used to single Tweeter SDAs, the sound was odd, and kind of phasey. It didn't add to the sound quality, it detracted from it on certain recordings.
    Home Theater/2 Channel:
    Front: SDA-2ATL
    Center: Custom Built http://www.polkaudio.com/forums/show...hannel-Project
    Surrounds & Rears: Custom Built http://www.polkaudio.com/forums/show...rround-Project
    Sonicaps, Mills, RDO-194s-198s, Dynamat & Hurricane Nuts.
    Pioneer Elite VSX-72TXV, Carver PM-350
    Other:
    SDA-CRS+
    Bose 901 Series II Continentals, Custom Rebuilt Equalizer
    www.dhsspeakerservice.com

  5. #5

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    Thanks Dave for the input. Where would this model rank in the SDA line up?

  6. #6

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    Quote Originally Posted by Faustin View Post
    Thanks Dave for the input. Where would this model rank in the SDA line up?
    I can't say how they stack up against their younger siblings, the 1B and C with progressive point sources, or the Big Boys, but comparing them to my 2ATLs and CRS+s, they sounded equally good. The my 2As and CRS+s have the better RDO-198s, never-the-less, they were impressive. Sonicaps were used in the Hi & Lo-Pass sections, and Mills Resistors. You can save some coin, by not doing any work on the Dimensional half's Hi-Pass section, if you eliminate the Dimensional Tweeter.
    Home Theater/2 Channel:
    Front: SDA-2ATL
    Center: Custom Built http://www.polkaudio.com/forums/show...hannel-Project
    Surrounds & Rears: Custom Built http://www.polkaudio.com/forums/show...rround-Project
    Sonicaps, Mills, RDO-194s-198s, Dynamat & Hurricane Nuts.
    Pioneer Elite VSX-72TXV, Carver PM-350
    Other:
    SDA-CRS+
    Bose 901 Series II Continentals, Custom Rebuilt Equalizer
    www.dhsspeakerservice.com

  7. #7

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    In case it helps with gauging the market, this pair has been on CL a while at $300 or BRO.
    Main HT: Polk Monitor 7 (1987-original owner) (L/R) / CSi40 (C) / RTi38 (SL/SR) / SVS 20-39PC (sub), Outlaw 975 pre/pro / Outlaw 7075 amp, Oppo BDP-93 Blu-ray, LG 42LM5800 teevee
    2ch: CRS+ (1987), Outlaw 1050 AVR, Denon DCM-420 CD
    Kitchen satellite 2ch: Polk M3II, Onkyo A-8037 integrated amp fed from Oppo, Yamaha TX-480 tuner
    Awaiting assignment: Model 5 (1978-Danish Peerless), Monitor 5JR (1988), Model 4 (1983-US Peerless), PSW202 (NIB), etc

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