Removing Polyswitches

Driver_King
Driver_King Posts: 266
edited May 2010 in Vintage Speakers
Long story short, I removed my Poly-switches and my tweeters don't work. When I put the top Poly-switch back in, the tweeters kick back on. Why is this?:confused:
Home Theater:

Onkyo TX-SR805
Behringer EP2500 for SDA's

Polk SDA II fronts
Polk Monitor 5Jr. surrounds
Polk Monitor 4 back surrounds

DIY A7-900 and DIY A3-300
Post edited by Driver_King on
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  • thsmith
    thsmith Posts: 6,082
    edited May 2010
    Did you use jumper wire in place of the ps's ? If not you need to complete the circuit.
    Speakers: SDA-1C (most all the goodies)
    Preamp: Joule Electra LA-150 MKII SE
    Amp: Wright WPA 50-50 EAT KT88s
    Analog: Marantz TT-15S1 MBS Glider SL| Wright WPP100C Amperex BB 6er5 and 7316 & WPM-100 SUT
    Digital: Mac mini 2.3GHz dual-core i5 8g RAM 1.5 TB HDD Music Server Amarra (memory play) - USB - W4S DAC 2
    Cables: Mits S3 IC and Spk cables| PS Audio PCs
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  • Driver_King
    Driver_King Posts: 266
    edited May 2010
    That would be the problem then.:o Do I need to use a jumper wire for both of the crossovers on the speakers? Also, would it be okay to cut off the wires off of the Poly-switches to finish the circuit?
    Home Theater:

    Onkyo TX-SR805
    Behringer EP2500 for SDA's

    Polk SDA II fronts
    Polk Monitor 5Jr. surrounds
    Polk Monitor 4 back surrounds

    DIY A7-900 and DIY A3-300
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  • F1nut
    F1nut Posts: 50,757
    edited May 2010
    I recommend replacing the polyswitches with an .5 ohm 12 watt Mills resistor to maintain the proper resistance designed into the circuit otherwise you may find the tweeters have too much energy.
    Political Correctness'.........defined

    "A doctrine fostered by a delusional, illogical minority and rabidly promoted by an unscrupulous mainstream media, which holds forth the proposition that it is entirely possible to pick up a t-u-r-d by the clean end."

    President of Club Polk

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  • Driver_King
    Driver_King Posts: 266
    edited May 2010
    I just wanted to say thanks to all of you who've helped me with my SDA's. There isn't anything like having a question answered within minutes of posting.:cool: For now, I think I'm going to stick with the jumpers. I can already tell the difference.:)
    Home Theater:

    Onkyo TX-SR805
    Behringer EP2500 for SDA's

    Polk SDA II fronts
    Polk Monitor 5Jr. surrounds
    Polk Monitor 4 back surrounds

    DIY A7-900 and DIY A3-300
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  • thsmith
    thsmith Posts: 6,082
    edited May 2010
    If you find them a bit bright take F1s recommedation on the resister. Thats what I did.
    Speakers: SDA-1C (most all the goodies)
    Preamp: Joule Electra LA-150 MKII SE
    Amp: Wright WPA 50-50 EAT KT88s
    Analog: Marantz TT-15S1 MBS Glider SL| Wright WPP100C Amperex BB 6er5 and 7316 & WPM-100 SUT
    Digital: Mac mini 2.3GHz dual-core i5 8g RAM 1.5 TB HDD Music Server Amarra (memory play) - USB - W4S DAC 2
    Cables: Mits S3 IC and Spk cables| PS Audio PCs
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  • george daniel
    george daniel Posts: 12,096
    edited May 2010
    and,, do you have the replacement tweeters?
    JC approves....he told me so. (F-1 nut)
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  • Driver_King
    Driver_King Posts: 266
    edited May 2010
    I don't have the replacements. I guess I'm one of those few who enjoy the SL2000's.:eek: They are a bit bright but they are tamable. Audyssey does a great job at smoothing out their ~12khz peak and makes them very enjoyable.
    Home Theater:

    Onkyo TX-SR805
    Behringer EP2500 for SDA's

    Polk SDA II fronts
    Polk Monitor 5Jr. surrounds
    Polk Monitor 4 back surrounds

    DIY A7-900 and DIY A3-300
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  • thsmith
    thsmith Posts: 6,082
    edited May 2010
    George may be saying, do you have replacement tweeters in case you get crazy on the volume without the polyswitches for protection.
    Speakers: SDA-1C (most all the goodies)
    Preamp: Joule Electra LA-150 MKII SE
    Amp: Wright WPA 50-50 EAT KT88s
    Analog: Marantz TT-15S1 MBS Glider SL| Wright WPP100C Amperex BB 6er5 and 7316 & WPM-100 SUT
    Digital: Mac mini 2.3GHz dual-core i5 8g RAM 1.5 TB HDD Music Server Amarra (memory play) - USB - W4S DAC 2
    Cables: Mits S3 IC and Spk cables| PS Audio PCs
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  • headrott
    headrott Posts: 5,496
    edited May 2010
    F1nut wrote: »
    I recommend replacing the polyswitches with an .5 ohm 12 watt Mills resistor to maintain the proper resistance designed into the circuit otherwise you may find the tweeters have too much energy.

    After this post Jesse, I will be getting some .5 ohm mills and do this. The highs in my 3.1TLs are a tad harsh, but not too bad at all. The best reason to do this is to keep a proper balance for the tweets. How much are the highs reduced by the .5 ohm resistor? I would think not by much seeing as they such low resistance values, but how noticable is it to your ears? Thanks again Jesse for the great advice.

    Greg
    Relayer-Big-O-Poster.jpg
    Taken from a recent Audioholics reply regarding "Club Polk" and Polk speakers:
    "I'm yet to hear a Polk speaker that merits more than a sentence and 60 seconds discussion." :\
    My response is: If you need 60 seconds to respond in one sentence, you probably should't be evaluating Polk speakers.....

    "Green leaves reveal the heart spoken Khatru"- Jon Anderson

    "Have A Little Faith! And Everything You'll Face, Will Jump From Out Right On Into Place! Yeah! Take A Little Time! And Everything You'll Find, Will Move From Gloom Right On Into Shine!"- Arthur Lee
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  • Bubinga99
    Bubinga99 Posts: 283
    edited May 2010
    re: How much are the highs reduced by the .5 ohm resistor?

    I can only speak for the 2.3TL. Depending on the crossover, it might be pretty similar for other models. For the 2.3TL it's right at 1dB (comparing a .5 ohm resistor vs a jumper, replacing the polysw).
    1dB is the minimum that most people but not all people can detect.
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  • F1nut
    F1nut Posts: 50,757
    edited May 2010
    headrott wrote: »
    After this post Jesse, I will be getting some .5 ohm mills and do this. The highs in my 3.1TLs are a tad harsh, but not too bad at all. The best reason to do this is to keep a proper balance for the tweets. How much are the highs reduced by the .5 ohm resistor? I would think not by much seeing as they such low resistance values, but how noticable is it to your ears? Thanks again Jesse for the great advice.

    Greg

    Greg, just so you know your 3.1TL's did not come with a polyswitch. That said, there is no reason that you couldn't add a .5 ohm resistor to tame the tweeter energy a little.

    How noticeable? Enough for my ears to tell the difference. :)
    Political Correctness'.........defined

    "A doctrine fostered by a delusional, illogical minority and rabidly promoted by an unscrupulous mainstream media, which holds forth the proposition that it is entirely possible to pick up a t-u-r-d by the clean end."

    President of Club Polk

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  • Disc Jockey
    Disc Jockey Posts: 1,013
    edited May 2010
    F1nut wrote: »
    How noticeable? Enough for my ears to tell the difference. :)

    Mine too :cool:
    "The secret of happiness is freedom. The secret of freedom is courage." Thucydides
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  • headrott
    headrott Posts: 5,496
    edited May 2010
    F1nut wrote: »
    Greg, just so you know your 3.1TL's did not come with a polyswitch. That said, there is no reason that you couldn't add a .5 ohm resistor to tame the tweeter energy a little.

    How noticeable? Enough for my ears to tell the difference. :)

    That's right, I was confusing my 3.1TL's and 2B's. I forgot that the 3.1TL's didn't have a poly. Thanks again Jesse. Hmmm, if that's the case then the 3.1TL's were not designed with the intent of using a poly. Really, the highs don't need to be tamed very much at all. Would it over-do it then adding a .5 ohm resistor to tame the tweets? I know this gets into a persons preferences, but........any help would be appreciated.

    Greg
    Relayer-Big-O-Poster.jpg
    Taken from a recent Audioholics reply regarding "Club Polk" and Polk speakers:
    "I'm yet to hear a Polk speaker that merits more than a sentence and 60 seconds discussion." :\
    My response is: If you need 60 seconds to respond in one sentence, you probably should't be evaluating Polk speakers.....

    "Green leaves reveal the heart spoken Khatru"- Jon Anderson

    "Have A Little Faith! And Everything You'll Face, Will Jump From Out Right On Into Place! Yeah! Take A Little Time! And Everything You'll Find, Will Move From Gloom Right On Into Shine!"- Arthur Lee
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  • F1nut
    F1nut Posts: 50,757
    edited May 2010
    Try it, you may like it. :)
    Political Correctness'.........defined

    "A doctrine fostered by a delusional, illogical minority and rabidly promoted by an unscrupulous mainstream media, which holds forth the proposition that it is entirely possible to pick up a t-u-r-d by the clean end."

    President of Club Polk

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  • Hypnotoad
    Hypnotoad Posts: 44
    edited May 2010
    Not to hijack the thread but I sometimes find my 1C's a little on the bright side.

    I am going to check to see if the polyswitches are still in, would it be a problem if I put in a 1 ohm resistor?
    ProJect Perspective II Turntable & Benz Micro Ace
    ProJect Tube Box II & Philips/Amperex tubes
    Luxman L-430 Integrated
    Polk SDA 1C's
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  • ben62670
    ben62670 Posts: 15,969
    edited May 2010
    You can put a 1 ohm resistor in there no problem.
    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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  • george daniel
    george daniel Posts: 12,096
    edited May 2010
    why a 1 ohm instead of a .5 ohm?
    JC approves....he told me so. (F-1 nut)
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  • F1nut
    F1nut Posts: 50,757
    edited May 2010
    A 1 ohm resistor is really going to kill the high frequencies, try a .5 ohm instead.
    Political Correctness'.........defined

    "A doctrine fostered by a delusional, illogical minority and rabidly promoted by an unscrupulous mainstream media, which holds forth the proposition that it is entirely possible to pick up a t-u-r-d by the clean end."

    President of Club Polk

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  • george daniel
    george daniel Posts: 12,096
    edited May 2010
    I replaced the polyswitches in my 1C's with a .5 ohm 12 watt Mills resistor,IIRC
    JC approves....he told me so. (F-1 nut)
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