Polk 7C help again, sorry

jpbarr03
jpbarr03 Posts: 3
edited June 2011 in Vintage Speakers
Just got out my Polk 7Cs. I have owned these since in the Navy in the 80's new.
1 woofer is cracked out of the pair.
Everything else looks good

Been going over some of the old threads.
What is available to replace the woofer MW6502, (should change both of them out)
Maybe change the caps and the SL2000 tweeters?
Crossover BE0700-A
Are these 8 or 4 ohm?

I'm very good with a iron, but need to have a list with some part #s if possible

Thank You
Jim
Post edited by jpbarr03 on
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Comments

  • ben62670
    ben62670 Posts: 15,969
    edited March 2011
    Just look for another 6502. The caps should be changed, and most folks prefer the RDO-194 replacement for the SL2000. You can get them from Polk for $48 shipped if you mention that you are a Club Polk member,
    Welcome to Club Polk
    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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  • adam2434
    adam2434 Posts: 995
    edited March 2011
    Crossover schematics are in a sticky at the top of this forum page. However, it's best to verify the part values on the actual crossover.
    5.1 and 2.0 ch Basement Media Room: Outlaw 975/Emotiva DC-1/Rotel RB-1582 MKII/Rotel RB-1552/Audiosource Amp 3/Polk LS90, CS400i, FX500i/Outlaw X-12, LFM-1/JVD DLA-HD250/Da-Lite 100" HCCV/Sony ES BDP/Sonos Connect. DC-1/RB-1582 MKII/Sonos Connect also feed Polk 7C in garage or Dayton IO655 on patio.
    2.1 ch Basement Gym: Denon AVR-2807/Klipsch Forte I or NHT SB2/JBL SUB 550P x 2/Chromecast Audio.
    2.0 ch Living Room: Rotel RX-1052/Emotiva DC-1/Klipsch RF-7 III/Sony ES BDP/LG 65" LED.
    2.0 ch Semi-portable: Klipsch Powergate/NHT SB3/Chromecast Audio.
    Kitchen: Sonos Play5.
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  • jpbarr03
    jpbarr03 Posts: 3
    edited March 2011
    Thank you

    Just ordered 2 RDO194 and 2 mw6502

    Now what about the Caps

    DSCN0235.JPG


    TI E-0012-1 12J100v USA

    TSI 3423 PXC34LP50TF 34uF-50 VAC AC Mexico

    You all have had more experience than I

    Where can I get these

    Thank You Again
    Jim
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  • TennMan
    TennMan Posts: 1,266
    edited March 2011
    A thread I started will answer a lot of questions for your. I have monitor 10s but most of the tread will apply to your 7s.

    Click here: Tweeters or Capacitors First?
    • SDA 2BTL · Sonicaps · Mills resistors · RDO-198s · New gaskets · H-nuts · Erse inductors · BH5 · Dynamat
    • Crossover upgrades by westmassguy
    • Marantz 1504 AVR (front speaker pre-outs to Adcom 555)
    • Adcom GFA-555 amp · Upgrades & speaker protection added by OldmanSRS
    • Pioneer DV-610AV DVD/CD player
    • SDA CRS+ · Hidden away in the closet
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  • jpbarr03
    jpbarr03 Posts: 3
    edited March 2011
    Thank You TennMan
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  • saemark30
    saemark30 Posts: 146
    edited June 2011
    Are the RDO-194 perfect drop in replacement for the SL2000, matching the screw holes on the speaker?
    I find the SL2000 a bit fuzzy and distorted on one speaker.
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  • Crashdot
    Crashdot Posts: 182
    edited June 2011
    The Polk documentation says that sometimes the screw holes will not always align perfectly, although for the seven sets of speakers I have here, all of the holes matched. I had the same problem with one of the tweeters in my 5B's, which was fixed by replacing it.
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