Montior 10 ; SL 2000 ; Crossover Frequency?

wizzy
wizzy Posts: 867
edited March 2008 in Vintage Speakers
Searched for this but had no luck ... even Googled.

What is the crossover frequency of a Monitor 10? Stock with SL2000?
Post edited by wizzy on
· Share on FacebookShare on Twitter

Comments

  • ShinAce
    ShinAce Posts: 1,194
    edited March 2008
    80 Hz?

    j/k
    · Share on FacebookShare on Twitter
  • nms
    nms Posts: 671
    edited March 2008
    I wanna say 3000 Hz, but don't quote me on that. I know there's a small section of overlap.
    My system

    "The world is an ever evolving clusterf*ck." --treitz3
    · Share on FacebookShare on Twitter
  • Face
    Face Posts: 14,340
    edited March 2008
    I believe it has two 12uf caps in series in the HF circuit, so it would appear to be around 1200hz.
    "He who fights with monsters should look to it that he himself does not become a monster. And when you gaze long into an abyss the abyss also gazes into you." Friedrich Nietzsche
    · Share on FacebookShare on Twitter
  • wizzy
    wizzy Posts: 867
    edited March 2008
    Face wrote: »
    I believe it has two 12uf caps in series in the HF circuit, so it would appear to be around 1200hz.

    Wow .. I was guessing it would have been somewhere between 1500-2500Hz !
    · Share on FacebookShare on Twitter
  • Face
    Face Posts: 14,340
    edited March 2008
    That does sound low to me too. I could be wrong, but according to the caps in the crossover and it being a 4ohm speaker, that's what it appears to be.
    "He who fights with monsters should look to it that he himself does not become a monster. And when you gaze long into an abyss the abyss also gazes into you." Friedrich Nietzsche
    · Share on FacebookShare on Twitter
  • jakelm
    jakelm Posts: 4,081
    edited March 2008
    Face wrote: »
    I believe it has two 12uf caps in series in the HF circuit, so it would appear to be around 1200hz.

    +1

    8ohm with 12uF is ~1200hz

    And trust me, if you would see the specs of the MW's you wouldnt want to pass them any higher than 1200hz
    Monitor 7b's front
    Monitor 4's surround
    Frankinpolk Center (2 mw6503's with peerless tweeter)
    M10's back surround
    Hafler-200 driving patio Daytons
    Tempest-X 15" DIY sub w/ Rythmik 350A plate amp
    Dayton 12" DVC w/ Rythmik 350a plate amp
    Harman/Kardon AVR-635
    Oppo 981hd
    Denon upconvert DVD player
    Jennings Research (vintage and rare)
    Mit RPTV WS-55513
    Tosh HD-XA1
    B&K AV5000


    Dont BAN me Bro!!!!:eek:
    · Share on FacebookShare on Twitter
  • ShinAce
    ShinAce Posts: 1,194
    edited March 2008
    Two 12 uF caps in series = 6 uF .

    4 ohm will crossover at a higher freq than 8 ohm with the same components.

    I'm at work so can't double check the actual freq, but if you can link a schematic, I'll do it later.
    · Share on FacebookShare on Twitter
  • jakelm
    jakelm Posts: 4,081
    edited March 2008
    http://www.the12volt.com/caraudio/crosscalc.asp

    A good caculator here
    Monitor 7b's front
    Monitor 4's surround
    Frankinpolk Center (2 mw6503's with peerless tweeter)
    M10's back surround
    Hafler-200 driving patio Daytons
    Tempest-X 15" DIY sub w/ Rythmik 350A plate amp
    Dayton 12" DVC w/ Rythmik 350a plate amp
    Harman/Kardon AVR-635
    Oppo 981hd
    Denon upconvert DVD player
    Jennings Research (vintage and rare)
    Mit RPTV WS-55513
    Tosh HD-XA1
    B&K AV5000


    Dont BAN me Bro!!!!:eek:
    · Share on FacebookShare on Twitter
  • jakelm
    jakelm Posts: 4,081
    edited March 2008
    ShinAce wrote: »
    Two 12 uF caps in series = 6 uF .

    4 ohm will crossover at a higher freq than 8 ohm with the same components.

    I'm at work so can't double check the actual freq, but if you can link a schematic, I'll do it later.


    Misread previous quote. The first cap is a bypass cap, not a series cap. So the HP is a second order with 1, 12uF cap.

    And I believe the tweeter is ~ 8ohms
    Monitor 7b's front
    Monitor 4's surround
    Frankinpolk Center (2 mw6503's with peerless tweeter)
    M10's back surround
    Hafler-200 driving patio Daytons
    Tempest-X 15" DIY sub w/ Rythmik 350A plate amp
    Dayton 12" DVC w/ Rythmik 350a plate amp
    Harman/Kardon AVR-635
    Oppo 981hd
    Denon upconvert DVD player
    Jennings Research (vintage and rare)
    Mit RPTV WS-55513
    Tosh HD-XA1
    B&K AV5000


    Dont BAN me Bro!!!!:eek:
    · Share on FacebookShare on Twitter
  • ShinAce
    ShinAce Posts: 1,194
    edited March 2008
    I briefly looked at the Monitor 10 crossover: http://www.polkaudio.com/forums/showthread.php?t=38755

    1200 Hz sounds about right but it's one of those designs that's best tested instead of measured.

    That poor tweeter.
    · Share on FacebookShare on Twitter
  • jakelm
    jakelm Posts: 4,081
    edited March 2008
    ShinAce wrote: »
    That poor tweeter.


    It is taking on a big job.
    Monitor 7b's front
    Monitor 4's surround
    Frankinpolk Center (2 mw6503's with peerless tweeter)
    M10's back surround
    Hafler-200 driving patio Daytons
    Tempest-X 15" DIY sub w/ Rythmik 350A plate amp
    Dayton 12" DVC w/ Rythmik 350a plate amp
    Harman/Kardon AVR-635
    Oppo 981hd
    Denon upconvert DVD player
    Jennings Research (vintage and rare)
    Mit RPTV WS-55513
    Tosh HD-XA1
    B&K AV5000


    Dont BAN me Bro!!!!:eek:
    · Share on FacebookShare on Twitter