SL -2000 to SL-2500 tweeter upgrade worth it?

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  • westmassguy
    westmassguy Posts: 6,850
    edited July 2013
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    StantonZ wrote: »
    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 forum.polkaudio.com/discussion/143984/my-2as-finally-finished-almost/p1
    Center: Custom Built forum.polkaudio.com/discussion/150760/my-center-channel-project/p1
    Surrounds & Rears: Custom Built forum.polkaudio.com/discussion/151647/my-surround-project/p1
    Sonicaps, Mills, RDO-194s-198s, Dynamat, Hurricane Nuts, Blackhole5
    Pioneer Elite VSX-72TXV, Carver PM-600, SVS PB2-Plus Subwoofer

    dhsspeakerservice.com/
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  • StantonZ
    StantonZ Posts: 440
    edited July 2013
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    westmassguy wrote: »
    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 RX-A2050 AVR (5.0.2); LG OLED77C2 4K TV
    (4) Polk Monitor 10B's w/SoniCaps, Mills, and RDO-194 tweets (R/L F/R)
    (2) Polk RC80i (Top Middle)
    Polk CS300 center channel
    Analog: B&O TX2 Turntable, Nakamichi Cassette Deck 1
    Digital: Pioneer CLD-99 Elite LD, Panasonic DMP-UB900 UHD Blu-Ray
    Bedroom: Arylic Up2Stream AMPv3 driving Polk Monitor 4's w/peerless tweets
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  • westmassguy
    westmassguy Posts: 6,850
    edited July 2013
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    StantonZ wrote: »
    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 forum.polkaudio.com/discussion/143984/my-2as-finally-finished-almost/p1
    Center: Custom Built forum.polkaudio.com/discussion/150760/my-center-channel-project/p1
    Surrounds & Rears: Custom Built forum.polkaudio.com/discussion/151647/my-surround-project/p1
    Sonicaps, Mills, RDO-194s-198s, Dynamat, Hurricane Nuts, Blackhole5
    Pioneer Elite VSX-72TXV, Carver PM-600, SVS PB2-Plus Subwoofer

    dhsspeakerservice.com/
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  • StantonZ
    StantonZ Posts: 440
    edited July 2013
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    westmassguy wrote: »
    You're correct with the 10s however. The .5 ohm should be kept separate. It's how I did mine as well.

    +1 :biggrin:
    Yamaha RX-A2050 AVR (5.0.2); LG OLED77C2 4K TV
    (4) Polk Monitor 10B's w/SoniCaps, Mills, and RDO-194 tweets (R/L F/R)
    (2) Polk RC80i (Top Middle)
    Polk CS300 center channel
    Analog: B&O TX2 Turntable, Nakamichi Cassette Deck 1
    Digital: Pioneer CLD-99 Elite LD, Panasonic DMP-UB900 UHD Blu-Ray
    Bedroom: Arylic Up2Stream AMPv3 driving Polk Monitor 4's w/peerless tweets
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  • PolkieMan
    PolkieMan Posts: 2,446
    edited July 2013
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    Or replace the poly with a 1 ohm that should do it. You youngsters :razz:
    westmassguy wrote: »
    About the only thing I know of to tame the SL2000 is to disconnect it.
    POLK SDA 2.3 TLS BOUGHT NEW IN 1990, Gimpod/Sonic Caps/Mills RDO-198
    POLK CSI-A6 POLK MONITOR 70'S ONKYO TX NR-808 SONY CDP-333ES
    PIONEER PL-510A SONY BDP S5100
    POLK SDA 1C BOUGHT USED 2011,Gimpod/Sonic Caps/Mills RDO-194
    ONKYO HT RC-360 SONY BDP S590 TECHNICS SL BD-1
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  • Orangeman
    Orangeman Posts: 56
    edited July 2013
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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.
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  • Orangeman
    Orangeman Posts: 56
    edited August 2013
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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?
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  • Orangeman
    Orangeman Posts: 56
    edited August 2013
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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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