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  1. #1

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    Default Best-value / most-bang-for-the-buck Mods for Monitor 7's

    The prodigal son has returned to Polk-dom after decades of being away. Am returning slowly, with a pair of Monitor 7's a pair of 4's.

    Question to this group about the Monitor 7's - what are the most value-oriented mods? Crossover upgrade? New tweeters? ...

    All thoughts welcome.

  2. #2

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    Crossovers and tweeters without question.
    The other upgrades will make a difference, to be sure. But none will have the impact or immediate gratification that the above 2 will have.
    "Unwad those panties and have a good time man. We're all here to help each other, no matter how it might appear." DSkip
    I may have an addiction... RTA-15TL, SDA 2, LSi25, LSi15, LSi9, LSi7, LSiCx2, LSiFX, LS/FX, RT/FX, DSW MP2000...and that's just the Polks...

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    Thanks, ZLT. And of the two, which should be done first (assuming can only do one right now)? If the tweeters, what is the recommended tweeter?

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    That depends on what type you have now...

    Can you post some pics, or do you know which model you have?

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    Dynomate the drivers is a cheep way of tighting base.
    Main Rig:
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  6. #6

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    Quote Originally Posted by soundfreak1 View Post
    Dynomate the drivers is a cheep way of tighting base.
    Is this with all Monitors? I have been searching for a thread with links to other threads with upgrades and pictures but have not found one. I've seen people say install hurricane nuts and Dynomate the drivers but would like to see what people are talking about.
    2 channel rig: SDA 3.1's, Hafler 500, Onkyo p-301, Technics SL 1400

    HT: Dennon 1612, Monitor 12's, CS275 Center, coming soon: Monitor 5jr's

    Bedroom system: Kenwood KR-V8020 (Needs replacement or repair!) Monitor 10's

    Additional projects: RTA 12's (Currently in my 2 channel system because I'm an idiot!)

  7. #7

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    I would say that the most value-oriented mod you can do is preventative maintenance.

    The mid-woofers on the Monitor series are prone to magnet shift due to the failure of the epoxy holding the magnet in place around the voice coil.

    Get some good aftermarket epoxy (I used JB Weld) to seal the magnets in place and prevent the loss of one of your drivers. This should cost you no more than a few dollars in epoxy costs.

    There are numerous posts on this forum outlining what to do if you have questions.

    Other mods I would recommend (in the order I would recommend them post-epoxy):

    1. Seal drivers to cabinet - use gasket foam.

    2. Replace crossover capacitors

    3. Replace crossover resistors

    4. replace tweeter (if SL200o or 2500 to RDO-194 or -198. Keep a Peerless if you have it)

    5. Dynomat or other sound-deadening materials on the baskets of the mid-woofer and passive radiator.

    6. Hurricane nuts, Larry's rings or other method of safely tighening seal between drivers and cabinet

    7. Improved sound deadening foam on sides of inside of cabinet

    8. Re-seal cabinet seams inside.

    And for aesthetics:

    9. Re-veneer cabinets

    10: Put in new binding posts and wire.

    I did most of this to my Monitor 7As. They turned out great. You can find my posts on my work here on the forum and on my blog: silverfacestereo.wordpress.com.

    Good luck!
    G
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  8. #8

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    What model of 7's do you have? If they have the Peerless tweets, I wouldn't be pushing for new tweeters. If they have the 2000's, the RDO tweeter upgrades will provide instant value.
    The difference between genius and stupidity is; genius has its limits. -Albert Einstein

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  9. #9

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    It's called DYNAMAT Extreme....geesh!
    '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."

  10. #10

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    Quote Originally Posted by F1nut View Post
    It's called DYNAMAT Extreme....geesh!
    Geesh is right! Actually, it's called Dynamat XTREME! ; )

    The Wedge Pak (18" x 32") goes a looooonnnnnngggg way - had enough to do all midwoofers and passive radiators in my SDA-2Bs, Monitor 10Bs, Monitor 5jrs and Monitor 4s. Now, less that $25 on the 'bay: http://www.ebay.com/itm/Dynamat-1042...p2054897.l4275

  11. #11

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    If you decide to do dynamat, check out the local craigslist first. I snagged an unopened trunk kit for $30 about a year ago.
    Usher CP-6311, Shuguang S200MK, Shuguang S845MK, Pioneer BDP-51fd, Essence Audio HDACC, Douglas IC's, Douglas Alpha bi-wire SC's, Pangea/Douglas PC's, Epson 8100

  12. #12

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    Quote Originally Posted by teekay0007 View Post
    Geesh is right! Actually, it's called Dynamat XTREME! ; )
    LOL....got me.
    '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."

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