My new Passion!! SDA SRS 1.2TL's

scadaboy
scadaboy Posts: 6
edited February 2012 in Vintage Speakers
Hello here - first post

I happened upon a pair of SDA SRS 1.2TL's for a very decent price here in Ontario, Canada and the one problem I face is the lack of Drivers avalible for this Vintage stuff! My puppy's were missing the outside Left Driver - which is a WM6511 from what I gather. They do need a lot of work big time, and were truly neglected but I picked them up for a decent price - if not a steal. So I am willing to go the long road on this project which may require a complete overhaul of all drivers and bits. They were pretty rough when I got them, but I do have faith that they will sing again.......

I have heard that Polk still makes replacement Drivers for these monsters that are close to original - so my question to the forum..... should I completly rebuild these units? or is it more feasible to just replace one or two original Drivers??

Thanks,

Tom
Post edited by scadaboy on
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  • audiocr381ve
    audiocr381ve Posts: 2,588
    edited February 2012
    scadaboy wrote: »
    Hello here - first post

    I happened upon a pair of SDA SRS 1.2TL's for a very decent price here in Ontario, Canada and the one problem I face is the lack of Drivers avalible for this Vintage stuff! My puppy's were missing the outside Left Driver - which is a WM6511 from what I gather. They do need a lot of work big time, and were truly neglected but I picked them up for a decent price - if not a steal. So I am willing to go the long road on this project which may require a complete overhaul of all drivers and bits. They were pretty rough when I got them, but I do have faith that they will sing again.......

    I have heard that Polk still makes replacement Drivers for these monsters that are close to original - so my question to the forum..... should I completly rebuild these units? or is it more feasible to just replace one or two original Drivers??

    Thanks,

    Tom

    Welcome to Club Polk!

    I'd say replace the drivers that don't work and leave the ones that do alone. Those crossovers will need attention and their are tons of threads that can guide you to getting those big boys to sound better than ever. Good luck!
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  • scadaboy
    scadaboy Posts: 6
    edited February 2012
    Thanks audiocr381ve - They are in very rough shape and I look for guidance from the pro's here on site. I have not really had a close look at the crossover system - it may have been very abused over the years, so any advice is worth it's weight in gold. I plan on stripping the entire cabinet and getting that back to 100% original, and then work my way through the Drivers. Is there an easy way of checking each individual Driver for operational value?

    Cheers,

    Tom
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  • scadaboy
    scadaboy Posts: 6
    edited February 2012
    Forgt to add,

    I will post some pictures of these units, as a picture speaks a 1000 words and may add some insight about what I am up against with these fine units. May take a couple days but will make it happen.

    Tom
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  • Toolfan66
    Toolfan66 Posts: 17,259
    edited February 2012
    I completely gutted mine and upgraded everything.. Lots of fun lots of money but worth every bit of it..
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  • michael1947
    michael1947 Posts: 775
    edited February 2012
    I'm sitting here listening to Paul Simon's Graceland on mine now and enjoying every moment of it. Had it not been for this forum I would not have even known they existed. I picked mine up completely re-done and worth every cent. Do the dead now and enjoy forever.
    Main Family Room: Sony 46 LCD, Sony Blue Ray, Sony DVD/VCR combo,Onkyo TXNR 708, Parasound 5250,
    Polk SDS-SRS with mods, CSI 5 center + Klipsch SC2, Polk RT2000P rears, Klipsch KG 1.5's sides, Polk Micro Pro 1000, Polk Micro Pro 2000, Polk SW505, Belkin PF60, Signal Cable Classics,Monster IC's, 2 15 amp circuits & 1 20 amp circuit.

    Living Room: Belkin PF60, Parasound HCA2200, MIT ProlineEXP balanced IC's,Emotiva XDA-1 DAC/Pre,Emotiva ERC2 transport,MIT AVT2, Polk LSI 9's.
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  • scadaboy
    scadaboy Posts: 6
    edited February 2012
    Thanks for the inspiration Toolfan66 and michael1947!!

    I have heard so much about these awesome speakers - I can't wait to hear them purrrrrr!! - I have a Pioneer VSX-DS1 about 95% dismantled in my basement to get a Relay retrofit and cleaning - although that will not be the primary source of power for these thirsty beasts. I will need to go on an Amplifier excursion to properly feed these monsters!
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  • Phasewolf
    Phasewolf Posts: 514
    edited February 2012
    Before you go and replace drivers do you have the sda cable hooked up by chance?
    Absolute corruption empowers absolutely.

    Lg 55LW5600 TV
    Onkyo PR-SC 5508
    Legacy Audio Focus SE
    Legacy Audio Silverscreen HD center
    Polk F/X500i Rears
    Parasound HCA-3500
    Sunfire Grand Cinema
    Behringer iNUKE NU6000DSP
    Pair of CraigSUB SS-18.1
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  • motorstereo
    motorstereo Posts: 2,134
    edited February 2012
    You say your outside drivers are "missing"? If they're completely out of the cabinet I would only put enough power to them to verify that the other drivers function. The box needs to be sealed up tightly and possibly could damage the rest of the drivers playing freely.

    Congrats on a wonderful pair of speakers. I luv my 1.2tl's.
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  • drumminman
    drumminman Posts: 3,396
    edited February 2012
    Congrats on your purchase and welcome to the Forum! Search for posts on modding these by Darqueknight and TF66, who responded above. Their work is first rate and well documented with pics and written explanations.

    If you've never heard an upgraded pair (rebuilt Xovers, large inductors replaced, tweeters upgraded, upgraded SDA IC cable, rings or Hurricane nuts for all drivers, Blackhole 5, etc., Dreadnought AI-1 interface) you have no idea how spectacular these can be. Don't know what you paid for these, but be prepared to drop some coin for big rewards!

    And yes, they love lots of high current, clean power.
    "Science is suppose to explain observations not dismiss them as impossible" - Norm on AA; 2.3TL's w/sonicaps/mills/jantzen inductors, Gimpod's boards, Lg Solen SDA inductors, RD-0198's, MW's dynamatted, Armaflex speaker gaskets, H-nuts, brass spikes, Cardas CCGR BP's, upgraded IC Cable, Black Hole Damping Sheet strips, interior of cabinets sealed with Loctite Power Grab, AI-1 interface with 1000VA A-L transformer
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  • allstock
    allstock Posts: 136
    edited February 2012
    I too am in Ontario, and love my 1.2 tl's! Replace the tweeters, and do the usual mods and you will be very happy! They need a "big" room to shine, at least three feet on each side. Have fun!
    Two Channel-SDA SRS 1.2tl's,modded, Cambridge Audio 851w amps(2),Cambridge 851e pre, VPI Scout 1.1 tt, Moon audio phono pre,oppo bd105.
    HT-Denon avr3808ci,Carver a-753x,Panasonic ae4000 projector,120" screen,ps3,wii console w/full rockband,Panamax conditioner,dbx120 subharmonic synthesizer,jvc dvd-a player, Polk RTi12 mains,Polk CSiA6 centre, Energy ES-18xl sub,two custom 10" powered subs, Def Tech bp2x surrounds(4),Paradigm monitors-rear(2)
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  • Joe08867
    Joe08867 Posts: 3,919
    edited February 2012
    Test all the drivers out of the cabinet. You may have other issues that aren't the drivers.

    Also did you get the SDA cable with them? It's the cable that runs between the two cabinets as in interconnect to create the SDA effect.
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  • GaryW
    GaryW Posts: 60
    edited February 2012
    Congrat's Tom

    I found a pair of SRS 1.2TL's in Arizona 2 years ago and hauled them back to British Columbia. They are in mint condition, i have the parts to rebuild the crossovers. The tweeters are all replaced.

    Gary
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  • chandler9a
    chandler9a Posts: 878
    edited February 2012
    Congrats on the TL's and welcome to the club.

    I picked some of these up for my father a couple of years ago and we have done just about every mod we can to them. Let me tell you, like others have said, its worth it and you will not be disappointing. As mentioned above, make sure you have room and some clean, high current power and they will sing.

    Lets see pics!
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  • scadaboy
    scadaboy Posts: 6
    edited February 2012
    Phasewolf,

    They gave me the sda interconnet cable - but it was not hooked up at the time

    Tom
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  • Phasewolf
    Phasewolf Posts: 514
    edited February 2012
    I would hook the cable power them up and give them a try that cable supply's part of your signal and you should have it hooked up. Try it out and report back.
    Absolute corruption empowers absolutely.

    Lg 55LW5600 TV
    Onkyo PR-SC 5508
    Legacy Audio Focus SE
    Legacy Audio Silverscreen HD center
    Polk F/X500i Rears
    Parasound HCA-3500
    Sunfire Grand Cinema
    Behringer iNUKE NU6000DSP
    Pair of CraigSUB SS-18.1
    · Share on FacebookShare on Twitter