SDA CRS or CRS+

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  • F1nut
    F1nut Posts: 52,406
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    Also, F1 nut probably won't agree that anything other than Musical Fidelity is worth your time

    Far from it
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  • VSAT88
    VSAT88 Posts: 1,383
    edited April 24
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    pitdogg2 wrote: »
    Check the drivers MW number to be sure.

    I have learned the "hard way' to check those Polk MW numbers..... All of em will fit and there are slipped magnets a many. Lots of folks have no clue that the MW can have different model numbers and specs and will throw in anything. They can be quite far from each other spec wise and fit the hole just perfectly. Hard to tell by just looking and not removing the driver. Also... No sticker on the back of the magnet? Look in the bottom of the cabinet down by the passive radiator (on some). It probably just fell off.

    Copied from this site:
    All the vintage 6.5" Polk drivers look the same, but their specs are very different. If you have MW6510s, they will work in place of the MW6503s. There is no substitute for the MW6511s though.


    1 Driver Type Q BL Compliance DC Resistance Fs

    3 MW 6501 1.47 5.96 N 3.25 E - 3N/M 7.75 Ohms 31 Hertz
    4 MW 6502 1.97 5.16 N 1.47 E - 3N/M 3.52 Ohms 44 Hertz
    5 MW 6503 1.82 5.24 N 3.55 E - 3N/M 6.54 Ohms 29 Hertz
    6 MW 6509 2.1 4.57 N 3.54 E - 3N/M 8.97 Ohms 30 Hertz
    7 MW 6510 1.39 6.32 N 3.41 E - 3N/M 6.57 Ohms 31 Hertz
    8 MW 6511 1.405 4.34 N 3.496 E - 3N/M 3.13 Ohms 29 Hertz
    9 MW 6512 1.905 4.99 N 1.588 E - 3N/M 3.466 Ohms 40 Hertz



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