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Type: Posts; User: 809peter

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  1. Replies
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    No much help here indeed. I asume you are...

    No much help here indeed.
    I asume you are familiar with the polk box plan site: http://www.polkaudio.com/caraudio/subbox/ ?
    If not, take a look.
    If I were you I'd prefer the center position. And...
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    713

    Here's my thought about it. Talking from my...

    Here's my thought about it.

    Talking from my gut feeling (mechanicly thinking) I would make one box, with a separator between the two chambers.
    But talking from my experience, putting 2 subs in...
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    If bought a grille for my (single) MM840(DVC...

    If bought a grille for my (single) MM840(DVC proud :)). But I don't think you can find another cheap alternative that exactly fits this sub.
    What you can do, is make a spacer ring to fill up the...
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    In your case I definitely would go for the MM1240...

    In your case I definitely would go for the MM1240 or MM1040.
    The MM series is well worth your money. They only require small enclosures (sealed).
    I think that the MM1040 will fit your amp great...
  5. Replies
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    OK, Got my MM840 today. Mounted in my .35 sealed...

    OK, Got my MM840 today.
    Mounted in my .35 sealed enclosure.

    Just did my first testrun. Now I'm sure Polk is the right choice for me.
    It sounds very good! It plays nice and subtle, but my amp can...
  6. Replies
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    Just ordered my Polk Sub MM840DVC. Happy and...

    Just ordered my Polk Sub MM840DVC.
    Happy and waiting.....
  7. Replies
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    3,073

    I'm sorry to hear that. Good luck !

    I'm sorry to hear that.
    Good luck !
  8. Replies
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    3,073

    I certainly agree on that one. It causes...

    I certainly agree on that one. It causes distortion and could mess up the sub!
    But I rather think that it messes up the surround, than the tinsels. It also could be the cause of a blown sub!! The...
  9. Replies
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    3,073

    OK, now it's time to measure the impedance of the...

    OK, now it's time to measure the impedance of the voice coil I guess.

    About your other questions. With this type of sub I don't have any idea how to reach the tinsel leads for repair. I guess it...
  10. Replies
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    I agree with Phillis. This askes for a little...

    I agree with Phillis. This askes for a little more investigation.

    I could be the protection mode from the amp or bad tinsel connections.
    But, what you also should do is measure the impedance of...
  11. Replies
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    Thanks guys ! I made my mind up. I'm going to...

    Thanks guys !

    I made my mind up. I'm going to buy the MM840DVC because of the better specs and the negative advice of getting the DB840 (cause I was used on 12 inches).
    I also believe it's a...
  12. Replies
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    4,831

    OK thanks. But where did you get the .5 from. I...

    OK thanks.
    But where did you get the .5 from. I cannot seem to find any of this data.
    Do you get it with the manual in the box?
  13. Replies
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    That freshens things up. The only strange thing...

    That freshens things up.
    The only strange thing on the polk site is there are diffent values from the same product. I get's me a bit confused.
    For example....
    the website...
  14. Replies
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    @ chu The way you describe the MM840 nears my...

    @ chu

    The way you describe the MM840 nears my expectation of a sub. A nice blend, and not overpowering.

    The thing about the enclosure is not real clear for me.
    I'm used to getting a manuals...
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    @ DSkip Thanks for your reply. With your answer...

    @ DSkip
    Thanks for your reply.
    With your answer I can make up that the MM840 is better then the MM840. It makes sence. But I don't understand the why you mention the 5 db increase in efficiency....
  16. Replies
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    Advice on sub choice DB or MM 8"

    Hello, I'm new here and searching the forum for a couple of days without finding an answer to my question. So here it is:

    I'm heaving trouble deciding which sub to buy.
    I've got a lot of...
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