speaker problems

Ashland jim
Ashland jim Posts: 2
edited January 2011 in Troubleshooting
I am having some problems with the RT20 speakers and a center channel I purchased new in 1996. I now have 3 drivers that have a humming sound. There is no visible defect in the rubber surround or the cone. This makes 4 speakers that have had this problem. One was repaired under warranty. The retailer I bought them from is no longer in business so their service department is not an option. Two of the problem speakers are MW8003 and one is a MW4850. What are my options? Replace the entire speaker system? Replace the drivers? Repair the drivers? I like the speakers and would prefer to keep them if it is practical. Is this a common occurance with these speakers? I hope some of you will take time to guide me. Thanks in advance.
Post edited by Ashland jim on

Comments

  • nguyendot
    nguyendot Posts: 3,594
    edited December 2010
    Replace the drivers. My dad has the RT20p's and has had to have the 6.5" drivers replaced already for going bad. Unfortunately, they're not available any more....
    Main Surround -
    Epson 8350 Projector/ Elite Screens 120" / Pioneer Elite SC-35 / Sunfire Signature / Focal Chorus 716s / Focal Chorus CC / Polk MC80 / Polk PSW150 sub

    Bedroom - Sharp Aquos 70" 650 / Pioneer SC-1222k / Polk RT-55 / Polk CS-250

    Den - Rotel RSP-1068 / Threshold CAS-2 / Boston VR-M60 / BDP-05FD
  • Ashland jim
    Ashland jim Posts: 2
    edited December 2010
    Thanks for the response. Are the speakers avialable on the used market? Is there anyone who does repair work on speakers if they are no longer available?
  • nguyendot
    nguyendot Posts: 3,594
    edited December 2010
    I doubt they are readily available. You can check ebay, someone has them every so often.

    You can call polk and ask for engineering - they may rebuild them for you if you're very, very nice.
    Main Surround -
    Epson 8350 Projector/ Elite Screens 120" / Pioneer Elite SC-35 / Sunfire Signature / Focal Chorus 716s / Focal Chorus CC / Polk MC80 / Polk PSW150 sub

    Bedroom - Sharp Aquos 70" 650 / Pioneer SC-1222k / Polk RT-55 / Polk CS-250

    Den - Rotel RSP-1068 / Threshold CAS-2 / Boston VR-M60 / BDP-05FD
  • tonyb
    tonyb Posts: 32,962
    edited December 2010
    Thanks for the response. Are the speakers avialable on the used market? Is there anyone who does repair work on speakers if they are no longer available?

    Hate to say it, but it maybe time to discover audio all over again. For what it would cost in shipping and repairs, find yourself some rtia 1's or 3's and don't look back. Polks line up has come along way since the rt line. Try your local craigslist or Audiogon for used speakers if budget is tight.
    HT SYSTEM-
    Sony 850c 4k
    Pioneer elite vhx 21
    Sony 4k BRP
    SVS SB-2000
    Polk Sig. 20's
    Polk FX500 surrounds

    Cables-
    Acoustic zen Satori speaker cables
    Acoustic zen Matrix 2 IC's
    Wireworld eclipse 7 ic's
    Audio metallurgy ga-o digital cable

    Kitchen

    Sonos zp90
    Grant Fidelity tube dac
    B&k 1420
    lsi 9's
  • leftwinger57
    leftwinger57 Posts: 2,917
    edited January 2011
    Hi Guys.
    I was giving my Yamaha rx-v665 a workout the other day and then suddenly it just shut right down. I reset the amp and tried it again and could not get past a certain vol # where they have pos/neg values for volume. I called
    Yamaha and was told it's a protection circuit feature and happens either when there is a short,out of phase, or hits a certain frequency. The tech asked me to do the old process of elimination game w/ one spkr at a time
    and shure enough it was my right front Klipsch that has some internal disease.Calling Klipsch wasn't that bad and after I proved all my paper trail
    and serial #s they said they will Fed EX a speaker out to me. That was 2 weeks ago and still waiting. The system works but if you want to go nuts it's like telling you oh no .Until this my reveiw of my Klipsch set was good for the
    price. Ther're sealed so there is no way to see internally what's going on.
    2chl- Adcom GFA- 555-Onkyo P-3150v pre/amp- JVC-QL-A200 tt- Denon 1940 ci cdp- Adcom GFS-6 -Modded '87 SDA 2Bs - Dynamat Ext.- BH-5- X-Overs VR-3, RDO-194 tweeters, Larry's Rings, Speakon/Neutrik I/C- Cherry stain tops Advent Maestros,Ohm model E

    H/T- Toshiba au40" flat- Yamaha RX- V665 avr- YSD-11 Dock- I-Pod- Klipsch #400HD Speaker set-

    Bdrm- Nikko 6065 receiver- JBL -G-200s--Pioneer 305 headphones--Sony CE375-5 disc