sda-2 occasional distortion

jabman
jabman Posts: 13
edited February 2011 in Troubleshooting
Can someone tell me what's causing my sda-2 speakers to cut-out and/or distort and then play fine if I turn off the amp then turn it right back on? This problem only happens intermittently and sometimes it might not happen for a day or so. I don't play music loud and I've switched amps to see if it was the amp. Apparently it isn't because the problem happened with both amps. I have a Carver cm-1090 and a Marantz 2238b. The speakers sound great unless the problem is occurring. Any ideas???
Post edited by jabman on
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  • quadzilla
    quadzilla Posts: 1,543
    edited February 2011
    Well, both amps are rated for 4 Ohm, so not really sure. Maybe a bad capacitor in the crossover, maybe 2 bad amps. Don't really know. Does this happen with any other speakers?
    Turntable: Empire 208
    Arm: Rega 300
    Cart: Shelter 501 III
    Phono Pre: Aural Thrills
    Digital: Pioneer DV-79ai
    Pre: Conrad Johnson ET3 SE
    Amp: Conrad Johnson Evolution 2000
    Cables: Cardas Neutral Reference
    Speakers: SDA 2.3TL, heavily modified
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  • ben62670
    ben62670 Posts: 15,969
    edited February 2011
    Is it your tweeters that are shutting down, or the whole speaker?
    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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  • jabman
    jabman Posts: 13
    edited February 2011
    I'm checking my monitor 10's to see if I get any distorting similar to the sda-2ss
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  • ben62670
    ben62670 Posts: 15,969
    edited February 2011
    ben62670 wrote: »
    Is it your tweeters that are shutting down, or the whole speaker?

    Again...
    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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  • jabman
    jabman Posts: 13
    edited February 2011
    It seems to affect not just the tweeters, but it's hard to tell because it happens so quickly and infrequently. I can't really say that I noticed it in the monitor 10s, but I've hooked the sda-2s back up and will try to catch what happens if it does it again. I played the sdas for three hours straight but nothing happened.
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  • ben62670
    ben62670 Posts: 15,969
    edited February 2011
    Does the sound go kinda flat/muted when this happens?
    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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  • jabman
    jabman Posts: 13
    edited February 2011
    I would say that kind of describes it along with, at times, alternating from one speaker to the other.
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  • ben62670
    ben62670 Posts: 15,969
    edited February 2011
    Sounds like your poly switches are bad. You don't have fuses do you?
    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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  • jabman
    jabman Posts: 13
    edited February 2011
    Nope, no fuses. Is this a big problem or can it be fixed relatively easy?
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  • ben62670
    ben62670 Posts: 15,969
    edited February 2011
    If you can solder it is a very easy fix.
    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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  • jabman
    jabman Posts: 13
    edited February 2011
    What is the procedure for getting to the poly switches? Are they behind the passive radiators and, if so, do I reseal with new gaskets when re-installing. Also, are these poly switches available or should it be fused instead? Can they just be eliminated?
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  • ben62670
    ben62670 Posts: 15,969
    edited February 2011
    Remove the passive and take a picture of what you see. Depending on the model they have different boards. The Poly switch can be completely eliminated with a jumper installed in its place.
    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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