SDA Blade Blade IC Question

apachef1
apachef1 Posts: 60
edited July 2008 in Vintage Speakers
Does anyone know if the polarity is the same from one end of the blade blade IC cable to the other end?
It looks like the polarity is reversed to the SDA blade blade socket from the right SDA SRS speakers to the left SDA SRS speaker?? Would that be correct:confused:
Post edited by apachef1 on
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  • Dennis Gardner
    Dennis Gardner Posts: 4,861
    edited July 2008
    Polarity is always reversed on blade/blade ICs. Large blade to small blade..........
    HT Optoma HD25 LV on 80" DIY Screen, Anthem MRX 300 Receiver, Pioneer Elite BDP 51FD Polk CS350LS, Polk SDA1C, Polk FX300, Polk RT55, Dual EBS Adire Shiva 320watt tuned to 17hz, ICs-DIY Twisted Prs, Speaker-Raymond Cable

    2 Channel Thorens TD 318 Grado ZF1, SACD/CD Marantz 8260, Soundstream/Krell DAC1, Audio Mirror PP1, Odyssey Stratos, ADS L-1290, ICs-DIY Twisted , Speaker-Raymond Cable
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  • apachef1
    apachef1 Posts: 60
    edited July 2008
    It seems the polarity reverses at the speakers IC socket not in the IC wire. Would you agree? This would be for the first generation SDA SRS
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  • ben62670
    ben62670 Posts: 15,969
    edited July 2008
    apachef1 wrote: »
    It seems the polarity reverses at the speakers IC socket not in the IC wire. Would you agree? This would be for the first generation SDA SRS

    I am pretty sure you are correct. Hopefully someone can check this. In fact I am almost positive you are correct. With the blade blade cable it is imperative you get it right. I blew an amp getting it wrong sending positive to positive. Post this in trouble shooting, and Polk can give you a correct answer.
    Ben
    Please. Please contact me a ben62670 @ yahoo.com. Make sure to include who you are, and you are from Polk so I don't delete your email. Also I am now physically unable to work on any projects. If you need help let these guys know. There are many people who will help if you let them know where you are.
    Thanks
    Ben
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  • PolkClyde
    PolkClyde Posts: 662
    edited July 2008
    I thought there was only one way to hook the blade blade cable IC UP male to female. somebody talk to me. I just got one from polk yesterday.
    PolkAudioClyde
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  • awe-d-o-file
    awe-d-o-file Posts: 146
    edited July 2008
    Large to large, small to small on the cable (jones plug)

    ET


    ET

    System: MF Trivista SACD > Placette passive> CJ passive horizontal bi-amp> MF 2500A(LF) MF2100(HF) > 1.2TL's

    Other: Speltz silver Eichmann IC's & speaker wire, Econotweaks Detail Magnifiers, PS Audio P-300(source), R. Gray 600, Al Sekala's AC R/C filters, R. Gray HT PC's, Oyaide R-1's,WPC-Z , M-1, Herbie's & DIY Isolation
    Room: Qty 7 - 4' tall 18" diam. bass traps, Qty 4 - 4' X 2' X 4" panels. All DIY - man my wife is tolerant!
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  • Boywonder
    Boywonder Posts: 225
    edited July 2008
    Check the cable blades for continuity with a multimeter. One test is worth a thousand expert opinions....
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  • apachef1
    apachef1 Posts: 60
    edited July 2008
    I did check the continuity and the results are large blade to large blade small blade to small blade. Info for those who want to build new IC cables with the blade/blade configuration.
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  • Marty913
    Marty913 Posts: 760
    edited July 2008
    apachef1 wrote: »
    I did check the continuity and the results are large blade to large blade small blade to small blade. Info for those who want to build new IC cables with the blade/blade configuration.

    The signal is switched from the socket to the crossover. When I redid my SDA2's I added another set of banana jacks but left the IC intact. That way I can use regular heavier gauge wire or the original IC cable. The wire itself is straight through large-large, small-small.
    Sony 60'' SXRD 1080p
    Amp = Carver AV-705THX 5-Channel
    Processor = NAD T747
    Panasonic BD35 Blu-Ray
    Main = SDA-1C Studio with RD0s, spikes, XO rebuild, rings, I/C upgrade
    Center=Polk CS10, Surround = Athena Dipoles, Sub= Boston 12HO
    Music/Video Streaming = Netgear NEO550
    TT = Audio Technica
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  • apachef1
    apachef1 Posts: 60
    edited July 2008
    I did see the change at the crossover to the socket. I wasn't sure if the IC cable had something going on and wanted to be sure before I start this project. I wanted to avoid cutting open the IC cable to verify as someone on the polk site may want it as a replacement.
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  • avguytx
    avguytx Posts: 1,628
    edited July 2008
    apachef1 wrote: »
    I did check the continuity and the results are large blade to large blade small blade to small blade. Info for those who want to build new IC cables with the blade/blade configuration.

    That pretty much sums it up.
    Richard? Who's your favorite Little Rascal? Alfalfa? Or is it........................Spanky?.................................Sinner.
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