peerless passive radiators for SDA-2's

backsigns
backsigns Posts: 87
edited November 2009 in Vintage Speakers
So how would this radiator work in the SDA-2's?

Peerless 831481 10" XLS 400g Passive Radiator (830481)

I'm just considering options for replacements, or if I have any options. Any help would be appreciated!
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  • ben62670
    ben62670 Posts: 15,969
    edited November 2009
    You need the stock ones. BTW the stock ones are 12"ers.
    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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  • backsigns
    backsigns Posts: 87
    edited November 2009
    The 120's are 12 inches? There is no way another radiator can be used? Since they are no longer made, it gets a little scary.
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  • ben62670
    ben62670 Posts: 15,969
    edited November 2009
    120 and 121 = 12"ers. Are your's OK?
    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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  • backsigns
    backsigns Posts: 87
    edited November 2009
    My cats did a number on the front of the radiators several years ago, and as the rubber around the midwoofers is beginning to crack and split., I am looking to replace all the drivers since I don't want to replace the speakers.
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  • leroyjr1
    leroyjr1 Posts: 8,785
    edited November 2009
    backsigns wrote: »
    My cats did a number on the front of the radiators several years ago, and as the rubber around the midwoofers is beginning to crack and split., I am looking to replace all the drivers since I don't want to replace the speakers.


    Might be cheaper just to look for another pair.
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  • backsigns
    backsigns Posts: 87
    edited November 2009
    Wouldn't there be the same issues with another pair since age is the problem? I bought these in '86. Money is an issue for the time being. I can get new drivers a couple at a time from Polk. I was hoping the radiators could be replaced with an alternative.
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  • gdb
    gdb Posts: 6,012
    edited November 2009
    Ditch the icky kitties too, blech!;)
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  • concealer404
    concealer404 Posts: 7,440
    edited November 2009
    The rubber surrounds deteriorating on these is not typical.... should be pretty easy to find a pair that doesn't have these issues.


    My cats don't scratch the drivers.... They just love to stick their paws in the ports. It's pretty funny.
    I don't read the newsssspaperssss because dey aaaallllllllll...... have ugly print.

    Living Room: B&K Reference 5 S2 / Parasound HCA-1000A / Emotiva XDA-2 / Pioneer BDP-51FD / Paradigm 11se MKiii

    Desk: Schiit Magni 2 Uber / Schiit Modi 2 Uber / ISK HD9999

    Office: Schiit Magni 2 Uber / Schiit Modi 2 Uber / Dynaco SCA-80Q / Paradigm Legend V.3

    HT: Denon AVR-X3400H / Sony UBP-X700 / RT16 / CS350LS / RT7 / SVS PB1000
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  • backsigns
    backsigns Posts: 87
    edited November 2009
    Kitties are gone lol
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  • leroyjr1
    leroyjr1 Posts: 8,785
    edited November 2009
    Which mid drivers do you need?
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  • ben62670
    ben62670 Posts: 15,969
    edited November 2009
    I have a pair of passive that I received to do a project. I no longer need them. They won't be free, but I am not going to rake you over the coals either.
    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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  • gdb
    gdb Posts: 6,012
    edited November 2009
    What exactly is wrong with the P.radiators, are the surrounds cracking on those also? If your surrounds are cracking it's probably because someone applied some sort of preservative or cleaner that attacked the rubber,or.....it's possible that it's a coating that was applied that is now cracking on the surface and the rubber underneath is still OK. PRs show up on ebay every so often as well as the 6.5" drivers. Some pics would help to show what's what.:)
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  • backsigns
    backsigns Posts: 87
    edited November 2009
    The rubber surrounds on the PR's don't seem to be cracking or splitting as of yet. I was just looking into getting replacement drivers without the scratched up fronts.
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  • backsigns
    backsigns Posts: 87
    edited November 2009
    ben62670 wrote: »
    I have a pair of passive that I received to do a project. I no longer need them. They won't be free, but I am not going to rake you over the coals either.
    Ben

    I would be interested!!!!:)
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  • backsigns
    backsigns Posts: 87
    edited November 2009
    gdb wrote: »
    What exactly is wrong with the P.radiators, are the surrounds cracking on those also? If your surrounds are cracking it's probably because someone applied some sort of preservative or cleaner that attacked the rubber,or.....it's possible that it's a coating that was applied that is now cracking on the surface and the rubber underneath is still OK. PRs show up on ebay every so often as well as the 6.5" drivers. Some pics would help to show what's what.:)

    Some kid thought he would help me out once and applied some sort of cleaner to the drivers. the 6.5 drivers seem to be the most affected, since they are cracking so badly. I'm not sure what he used, but they are breaking up.
    The mids are 6501's.
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  • gdb
    gdb Posts: 6,012
    edited November 2009
    With friends like that who needs enemas?:D
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  • heiney9
    heiney9 Posts: 25,216
    edited November 2009
    backsigns wrote: »
    Wouldn't there be the same issues with another pair since age is the problem? I bought these in '86. Money is an issue for the time being. I can get new drivers a couple at a time from Polk. I was hoping the radiators could be replaced with an alternative.

    Generally the rubber is extremely long lasting. I've had several pair of vintage Polks and had zero issues with rubber cracking, etc.

    The passive radiators are a problem because I am not aware of an aftermarket unit that has the *exact* specs of the original. I'd call Polk customer service and ask them what they would recommend as a replacement. I'm sure there is a company out there that makes something close enough it might work.

    Or watch ebay.

    H9
    "Appreciation of audio is a completely subjective human experience. Measurements can provide a measure of insight, but are no substitute for human judgment. Why are we looking to reduce a subjective experience to objective criteria anyway? The subtleties of music and audio reproduction are for those who appreciate it. Differentiation by numbers is for those who do not".--Nelson Pass Pass Labs XA25 | EE Avant Pre | EE Mini Max Supreme DAC | MIT Shotgun S1 | Pangea AC14SE MKII | Legend L600 | BlueSound Node 3 - Tubes add soul!
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  • concealer404
    concealer404 Posts: 7,440
    edited November 2009
    gdb wrote: »
    With friends like that who needs enemas?:D

    Freudian slip? :p
    I don't read the newsssspaperssss because dey aaaallllllllll...... have ugly print.

    Living Room: B&K Reference 5 S2 / Parasound HCA-1000A / Emotiva XDA-2 / Pioneer BDP-51FD / Paradigm 11se MKiii

    Desk: Schiit Magni 2 Uber / Schiit Modi 2 Uber / ISK HD9999

    Office: Schiit Magni 2 Uber / Schiit Modi 2 Uber / Dynaco SCA-80Q / Paradigm Legend V.3

    HT: Denon AVR-X3400H / Sony UBP-X700 / RT16 / CS350LS / RT7 / SVS PB1000
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  • leroyjr1
    leroyjr1 Posts: 8,785
    edited November 2009
    Check these out.

    http://www.polkaudio.com/forums/showthread.php?t=91348
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  • backsigns
    backsigns Posts: 87
    edited November 2009
    Thanks for your answers! I was asking about the peerless because I was wondering if the smaller mids would be able to push them. I was looking to improve on them.
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  • gdb
    gdb Posts: 6,012
    edited November 2009
    concealer404 wrote: »
    Freudian slip? :p

    Did Sigmund wear slips ??:p Typed exactly as intended BTW:D
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  • concealer404
    concealer404 Posts: 7,440
    edited November 2009
    gdb wrote: »
    Did Sigmund wear slips ??:p Typed exactly as intended BTW:D

    Eewwwwwwwwwww
    I don't read the newsssspaperssss because dey aaaallllllllll...... have ugly print.

    Living Room: B&K Reference 5 S2 / Parasound HCA-1000A / Emotiva XDA-2 / Pioneer BDP-51FD / Paradigm 11se MKiii

    Desk: Schiit Magni 2 Uber / Schiit Modi 2 Uber / ISK HD9999

    Office: Schiit Magni 2 Uber / Schiit Modi 2 Uber / Dynaco SCA-80Q / Paradigm Legend V.3

    HT: Denon AVR-X3400H / Sony UBP-X700 / RT16 / CS350LS / RT7 / SVS PB1000
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  • backsigns
    backsigns Posts: 87
    edited November 2009
    leroyjr1 wrote: »
    Check these out.

    http://www.polkaudio.com/forums/showthread.php?t=91348

    Wow! Thanks for the link. I would have to get 6503's if I got brand new. I am not sure what the difference is. I would like improved drivers to replace the old ones, but not all the mids are cracking, as of yet.
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  • heiney9
    heiney9 Posts: 25,216
    edited November 2009
    backsigns wrote: »
    Thanks for your answers! I was asking about the peerless because I was wondering if the smaller mids would be able to push them. I was looking to improve on them.

    Stick with the original drivers from Polk. If you want to improve them Polk makes a replacement tweeter for the sl1000/sl2000 which is a much better sounding tweeter. And upgrading the worn capacitors and resistors in the x-overs turns these into new speakers in every way.

    That's how you improve them, not by buying off the shelf drivers from another manufacturer.

    Good luck

    H9
    "Appreciation of audio is a completely subjective human experience. Measurements can provide a measure of insight, but are no substitute for human judgment. Why are we looking to reduce a subjective experience to objective criteria anyway? The subtleties of music and audio reproduction are for those who appreciate it. Differentiation by numbers is for those who do not".--Nelson Pass Pass Labs XA25 | EE Avant Pre | EE Mini Max Supreme DAC | MIT Shotgun S1 | Pangea AC14SE MKII | Legend L600 | BlueSound Node 3 - Tubes add soul!
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  • gdb
    gdb Posts: 6,012
    edited November 2009
    backsigns wrote: »
    Thanks for your answers! I was asking about the peerless because I was wondering if the smaller mids would be able to push them. I was looking to improve on them.

    Unless you've got a fistfull of engineering degrees.....I'm kind'a doubtful that you'll be able to effect much of an improvement over the way Mr.Polk designed them with the exception of minor "tweeks" and installing upgraded tweeters. Which SDA2 models do you have ? 2 or 3 6.5" drivers per cabinet?:confused:
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  • ben62670
    ben62670 Posts: 15,969
    edited November 2009
    Stay original if you can.
    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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  • backsigns
    backsigns Posts: 87
    edited November 2009
    Yes, I have been reading the forums and am very interested in doing the crossovers. I understand about using the wrong drivers. I guess I was just hoping to find alternatives that could work. Wishful thinking on my part. Thanks, you people are great!
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  • backsigns
    backsigns Posts: 87
    edited November 2009
    I've got the two tweeters, though I'm only using one of them on each speaker (cracks in the plastic) 3 mids per cabinet.
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  • JohnLocke88
    JohnLocke88 Posts: 1,150
    edited November 2009
    gdb wrote: »
    Unless you've got a fistfull of engineering degrees.....I'm kind'a doubtful that you'll be able to effect much of an improvement over the way Mr.Polk designed them with the exception of minor "tweeks" and installing upgraded tweeters. Which SDA2 models do you have ? 2 or 3 6.5" drivers per cabinet?:confused:

    With 6501s I bet my life on original SDA-2s.

    Did you get your passive problem "solved" yet?
    backsigns wrote: »
    I've got the two tweeters, though I'm only using one of them on each speaker (cracks in the plastic) 3 mids per cabinet.

    That's what I get for not reading...
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  • JohnLocke88
    JohnLocke88 Posts: 1,150
    edited November 2009
    Double post....disregard.
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