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  1. #31

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    Quote Originally Posted by westmassguy View Post
    You're correct, however, you could also just remove the polyswitch, install a jumper wire in its place, and increase the value of the 2 ohm resistor to 2.5 ohms. Six of one, half a dozen of the other. It will save you a few bucks.
    I have a different perspective on this one (I just did my 10B XO's): keep two SEPARATE resistors (2 Ohm and .5 Ohm). Why?
    1) Allows for easy "change out" later (I ended up sticking w/the .5 Ohm)
    2) It does alter the behavior of the 12 uF cap somewhat

    It's only a couple of extra bucks...
    Yamaha DSP-A1 Integrated Amp
    (4) Polk Monitor 10B's w/SoniCaps, Mills, and RDO-194 tweets (R/L F/R)
    (2) Polk Monitor 4's w/peerless tweets (dual centers)
    B&O TX2 Turntable
    Nakamichi Cassette Deck 1
    Pioneer CLD-99 Elite LD
    Samsung BD-P2550 Blu-Ray/DVD
    LG LST-3410a OTA DVR
    Princeton AF3.0HD Monitor
    Optoma HD65 Projector

  2. #32

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    Quote Originally Posted by StantonZ View Post
    I have a different perspective on this one (I just did my 10B XO's): keep two SEPARATE resistors (2 Ohm and .5 Ohm). Why?
    1) Allows for easy "change out" later (I ended up sticking w/the .5 Ohm)
    2) It does alter the behavior of the 12 uF cap somewhat

    It's only a couple of extra bucks...
    The 5s and 10s are two different animals. The 10s have two 12uf Caps, one is shunting the 2 ohm resistor to affect the voicing of the tweeter in relation to the two woofers, if memory serves, while the other is acting as the high pass filter. The 5 has a single 12uf high pass Cap. There's no shunt Cap. Much simpler design.
    Home Theater/2 Channel:
    Front: SDA-2ATL http://www.polkaudio.com/forums/show...ished...Almost
    Center: Custom http://www.polkaudio.com/forums/show...hannel-Project
    Surrounds & Rears: Custom http://www.polkaudio.com/forums/show...rround-Project
    Sonicaps, Mills, RDO-194s-198s, Dynamat, H-Nuts, BH5
    Pioneer Elite VSX-72TXV, Carver PM-350, SVS PB2-Plus Subwoofer


    www.dhsspeakerservice.com

  3. #33

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    Quote Originally Posted by westmassguy View Post
    The 5s and 10s are two different animals. The 10s have two 12uf Caps, one is shunting the 2 ohm resistor to affect the voicing of the tweeter in relation to the two woofers, if memory serves, while the other is acting as the high pass filter. The 5 has a single 12uf high pass Cap. There's no shunt Cap. Much simpler design.
    Ahhh...my bad. In that case: it doesn't matter!
    Yamaha DSP-A1 Integrated Amp
    (4) Polk Monitor 10B's w/SoniCaps, Mills, and RDO-194 tweets (R/L F/R)
    (2) Polk Monitor 4's w/peerless tweets (dual centers)
    B&O TX2 Turntable
    Nakamichi Cassette Deck 1
    Pioneer CLD-99 Elite LD
    Samsung BD-P2550 Blu-Ray/DVD
    LG LST-3410a OTA DVR
    Princeton AF3.0HD Monitor
    Optoma HD65 Projector

  4. #34

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    Quote Originally Posted by StantonZ View Post
    Ahhh...my bad. In that case: it doesn't matter!
    You're correct with the 10s however. The .5 ohm should be kept separate. It's how I did mine as well.
    Home Theater/2 Channel:
    Front: SDA-2ATL http://www.polkaudio.com/forums/show...ished...Almost
    Center: Custom http://www.polkaudio.com/forums/show...hannel-Project
    Surrounds & Rears: Custom http://www.polkaudio.com/forums/show...rround-Project
    Sonicaps, Mills, RDO-194s-198s, Dynamat, H-Nuts, BH5
    Pioneer Elite VSX-72TXV, Carver PM-350, SVS PB2-Plus Subwoofer


    www.dhsspeakerservice.com

  5. #35

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    Quote Originally Posted by westmassguy View Post
    You're correct with the 10s however. The .5 ohm should be kept separate. It's how I did mine as well.
    +1
    Yamaha DSP-A1 Integrated Amp
    (4) Polk Monitor 10B's w/SoniCaps, Mills, and RDO-194 tweets (R/L F/R)
    (2) Polk Monitor 4's w/peerless tweets (dual centers)
    B&O TX2 Turntable
    Nakamichi Cassette Deck 1
    Pioneer CLD-99 Elite LD
    Samsung BD-P2550 Blu-Ray/DVD
    LG LST-3410a OTA DVR
    Princeton AF3.0HD Monitor
    Optoma HD65 Projector

  6. #36

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    Or replace the poly with a 1 ohm that should do it. You youngsters

    Quote Originally Posted by westmassguy View Post
    About the only thing I know of to tame the SL2000 is to disconnect it.

  7. #37

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    Thanks all, I found the Solens and the Mills at Parts Express. I don't know exactly when I will get the xo mod done , but I will post my findings here. I will do one first and AB the speakers.

  8. #38

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    If anyone is still active on this post just a note I am ordering the new xover parts for the Monitor 5's. I guess I should open a new thread to report on anydifferance I hear, correct?

  9. #39

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    Oops....I forgot to mention, called Polk and they are out of rdo 194 tweeters until october. I mentioned that everyone on this thread thought the new tweeters were not as bright as the originals. He said flatly the Opposite !! What a hobby! It is all subjective to a point.

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