Vintage Polk Drivers

falconcry72
falconcry72 Posts: 3,580
edited February 2010 in Vintage Speakers
What's the difference between all the 6500 series drivers? Is assuming that higher numbers are newer and thus better an accurate assessment?

What drivers are in Monitor 10B's?

I ask beacuse I noticed that my rta12c's have 6501's and my monitor 5's have 6502's.

THANK YOU!:)
2-Channel: PC > Schiit Eitr > Audio Research DAC-8 > Audio Research LS-26 > Pass Labs X-250.5 > Magnepan 3.7's

Living Room: PC > Marantz AV-7703 > Emotiva XPA-5 > Sonus Faber Liuto Towers, Sonus Faber Liuto Center, Sonus Faber Liuto Bookshelves > Dual SVS PC12-Pluses

Office: Phone/Tablet > AudioEngine B1 > McIntosh D100 > Bryston 4B-ST > Polk Audio LSiM-703's
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  • ben62670
    ben62670 Posts: 15,969
    edited February 2010
    The 6511's and 6503's are 4ohms nominal. The rest are 8ohms

    Edit: I think 6509s are 4 ohms also.
    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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  • mmadden28
    mmadden28 Posts: 4,283
    edited February 2010
    falconcry72 wrote: »
    ...

    What drivers are in Monitor 10B's?

    I ask beacuse I noticed that my rta12c's have 6501's and my monitor 5's have 6502's.

    THANK YOU!:)

    The attachment in this thread has a listing of the drivers in many of the vintage non-SDA polks.

    https://www.polkaudio.com/forums/showpost.php?p=861387&postcount=18
    ____________________
    This post is a natural product. The slight variations in spelling and grammar enhance its individual character and beauty and in no way are to be considered flaws or defects.

    HT:Onkyo 805, Emotiva XPA-5, Mitsu 52" 1080p DLP / polkaudio RTi12, CSIa6, FXi3, uPro4K
    2-chnl : Pio DV-46AV (SACD), Dodd ELP, Emotiva XPA-1s, XPA-2, Odyssey Khartago, LSi9, SDA-SRS 2 :cool:, SB Duet, MSB & Monarchy DACs, Yamaha PX3 TT, SAE Tuner...
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  • falconcry72
    falconcry72 Posts: 3,580
    edited February 2010
    mmadden28 wrote: »
    The attachment in this thread has a listing of the drivers in many of the vintage non-SDA polks.

    https://www.polkaudio.com/forums/showpost.php?p=861387&postcount=18

    Thanks man! I looked through those schematics breifly but didn't see that replacement parts list, otherwise I wouldn't have posted! When I go to that post through the link in yor post and then click the attachment it won't open, but if if go to through the parent thread to it it does open:confused:

    are any better than others???
    2-Channel: PC > Schiit Eitr > Audio Research DAC-8 > Audio Research LS-26 > Pass Labs X-250.5 > Magnepan 3.7's

    Living Room: PC > Marantz AV-7703 > Emotiva XPA-5 > Sonus Faber Liuto Towers, Sonus Faber Liuto Center, Sonus Faber Liuto Bookshelves > Dual SVS PC12-Pluses

    Office: Phone/Tablet > AudioEngine B1 > McIntosh D100 > Bryston 4B-ST > Polk Audio LSiM-703's
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  • F1nut
    F1nut Posts: 50,754
    edited February 2010
    Different driver specs for purposes, nothing to do with older, newer or better, worse.
    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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  • falconcry72
    falconcry72 Posts: 3,580
    edited February 2010
    F1nut wrote: »
    Different driver specs for purposes, nothing to do with older, newer or better, worse.

    fair enough. well what about mixing drivers, not in the same speaker, but, say, in the same home theatre setup. I know that matching the tweeters is more important, but can mis-matched drivers sound bad? For example: rta12c's (6501's), monitor 5's (6502's), and monitor 10's (6503's). Is that combo less than ideal because of the different drivers? BTW they all have sl2000's (soon to be rd0's if I can save the loot). THANks!!:)
    2-Channel: PC > Schiit Eitr > Audio Research DAC-8 > Audio Research LS-26 > Pass Labs X-250.5 > Magnepan 3.7's

    Living Room: PC > Marantz AV-7703 > Emotiva XPA-5 > Sonus Faber Liuto Towers, Sonus Faber Liuto Center, Sonus Faber Liuto Bookshelves > Dual SVS PC12-Pluses

    Office: Phone/Tablet > AudioEngine B1 > McIntosh D100 > Bryston 4B-ST > Polk Audio LSiM-703's
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  • Schurkey
    Schurkey Posts: 2,104
    edited February 2010
    falconcry72 wrote: »
    can mis-matched drivers sound bad? For example: rta12c's (6501's), monitor 5's (6502's), and monitor 10's (6503's). Is that combo less than ideal because of the different drivers?
    Polk sometimes mixed drivers in the same speaker cabinet.
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  • heiney9
    heiney9 Posts: 25,217
    edited February 2010
    The later SDA's had better drivers, in that the voice coils were wound differently. It makes sense that an MW6510 or MW6511 is slightly more up to date than say an MW6500X or MW6501. Baskets and materials are obviously the same.

    BUT, that doesn;t mean you can innerchange all the drivers with different models, beyond just matching the ohms. All the MW drivers have that similar Polk sound but I would use whatever driver was originally used. You could call Polk an they could tell you what the next best model to use is, if you can't find an original.

    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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  • JohnLocke88
    JohnLocke88 Posts: 1,150
    edited February 2010
    ben62670 wrote: »
    The 6511's and 6503's are 4ohms nominal. The rest are 8ohms

    Edit: I think 6509s are 4 ohms also.
    Ben

    10 ohms I was told from Polk CS. (for the 6509).
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  • F1nut
    F1nut Posts: 50,754
    edited February 2010
    falconcry72 wrote: »
    fair enough. well what about mixing drivers, not in the same speaker, but, say, in the same home theatre setup. I know that matching the tweeters is more important, but can mis-matched drivers sound bad? For example: rta12c's (6501's), monitor 5's (6502's), and monitor 10's (6503's). Is that combo less than ideal because of the different drivers? BTW they all have sl2000's (soon to be rd0's if I can save the loot). THANks!!:)

    That would work perfectly.
    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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  • Schurkey
    Schurkey Posts: 2,104
    edited February 2010
    JohnLocke88 wrote: »
    10 ohms I was told from Polk CS. (for the 6509).
    Sounds about right. I measured dc resistance on the eight 6509s I have; lowest was 8 ohm, highest was 9.5.

    Kinda disappointed in the wide range; I had expected them to be tighter tolerance.
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