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  1. #1

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    Default Vintage Polk Drivers

    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:

    Source 1: PC
    Source 2: Rega Apollo CDP
    USB > SPDIF Converter: Stello U3
    DAC: Audio GD NFB-7
    Preamp: Audio Research LS-15
    Power Amp: BAT VK-500
    Speakers: Magnepan 3.7's

    HT:

    Source 1: HTPC
    Source 2: Oppo 103
    Pre/Pro: Marantz av8003
    Power Amp: Rotel RMB-1095
    Fronts: LSiM-705's
    Center: LSiM-704c
    Surrounds: LSiM-702's
    Subs: Dual SVS PC12-NSD's

  2. #2

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    The 6511's and 6503's are 4ohms nominal. The rest are 8ohms

    Edit: I think 6509s are 4 ohms also.
    Ben
    Last edited by ben62670; 02-25-2010 at 11:17 PM.
    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

  3. #3

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    Quote Originally Posted by falconcry72 View Post
    ...

    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/sho...7&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 , SB Duet, MSB & Monarchy DACs, Yamaha PX3 TT, SAE Tuner...
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  4. #4

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    Quote Originally Posted by mmadden28 View Post
    The attachment in this thread has a listing of the drivers in many of the vintage non-SDA polks.

    https://www.polkaudio.com/forums/sho...7&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

    are any better than others???
    2-Channel:

    Source 1: PC
    Source 2: Rega Apollo CDP
    USB > SPDIF Converter: Stello U3
    DAC: Audio GD NFB-7
    Preamp: Audio Research LS-15
    Power Amp: BAT VK-500
    Speakers: Magnepan 3.7's

    HT:

    Source 1: HTPC
    Source 2: Oppo 103
    Pre/Pro: Marantz av8003
    Power Amp: Rotel RMB-1095
    Fronts: LSiM-705's
    Center: LSiM-704c
    Surrounds: LSiM-702's
    Subs: Dual SVS PC12-NSD's

  5. #5

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    Different driver specs for purposes, nothing to do with older, newer or better, worse.
    'Political Correctness'.........defined

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  6. #6

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    Quote Originally Posted by F1nut View Post
    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:

    Source 1: PC
    Source 2: Rega Apollo CDP
    USB > SPDIF Converter: Stello U3
    DAC: Audio GD NFB-7
    Preamp: Audio Research LS-15
    Power Amp: BAT VK-500
    Speakers: Magnepan 3.7's

    HT:

    Source 1: HTPC
    Source 2: Oppo 103
    Pre/Pro: Marantz av8003
    Power Amp: Rotel RMB-1095
    Fronts: LSiM-705's
    Center: LSiM-704c
    Surrounds: LSiM-702's
    Subs: Dual SVS PC12-NSD's

  7. #7

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    Quote Originally Posted by falconcry72 View Post
    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.

  8. #8

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    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 Aleph 30; Eastern Electric Mini Max; Adcom GDA600; MIT S3/Z Pc; SDA 1C; Squeezebox; Tubes add soul!

  9. #9

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    Quote Originally Posted by ben62670 View Post
    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).
    Quote Originally Posted by cnh View Post
    Intoxia Surroundus!! The opposite of anorexia for audiophiles.

  10. #10

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    Quote Originally Posted by falconcry72 View Post
    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 turd by the clean end."

  11. #11

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    Quote Originally Posted by JohnLocke88 View Post
    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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